In Cryptography We Trust: A Short Guide to Bitcoin

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Aeon

Aeon (AEON) is a private, secure, untraceable currency. You are your bank, you control your funds, and nobody can trace your transfers.
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Where we have our trust: in Math, and her daughter, Cryptography /r/Bitcoin

Where we have our trust: in Math, and her daughter, Cryptography /Bitcoin submitted by ABitcoinAllBot to BitcoinAll [link] [comments]

Bitcoin T-Shirt "In Cryptography We Trust"

Bitcoin T-Shirt submitted by kbs42142 to TheBestShirts [link] [comments]

"In Cryptography We Trust" - Bitcoin Expo 2014 Coming to Canada . April 11-13 . Metro Toronto Convention Center

www.bitcoinexpo.ca
Greetings global Bitcoin community.
On behalf of the Bitcoin Alliance of Canada, I wish to invite you to one of the largest planned international Bitcoin events to date. Join us on April 11th-13th at Bitcoin Expo 2014 in Toronto. The prevailing theme will revolve around the growth and development of Bitcoin communities worldwide with a focus on collaborative and decentralized models. The Expo will be a showcase of prominent Bitcoin leaders, speakers, and businesses, and will be a stage where Canada can display its world class Bitcoin communities and business startups.
Canada is fast becoming known for its Bitcoin innovation and leadership charge. Recently, the world's first Bitcoin ATM went live within our borders. This was made possible by the legal and regulatory environment we're currently enjoying in Canada which is proving to be more Bitcoin friendly than many other nations around the world. We're excited to show you firsthand the enthusiasm and dedication of the Canadian Bitcoin community.
The Expo will be held at Metro Toronto Convention Center, Canada's largest conference and meeting facility, located next to Toronto's renowned financial district. Toronto is within a five-hour drive of some of the most populated cities in Canada, and is an hour drive from Niagara Falls and the border to the United States.
In addition to Bitcoin community building, other themes will revolve around Bitcoin and charitable giving, benefits Bitcoin can offer to developing nations, and policy and regulatory environments that we see being constructed around the world in response to this disruptive new innovation.
The Bitcoin Expo 2014 will be an event hosted by the Canadian Bitcoin community. However, we want to make this an international Bitcoin event, done in a collaborative way that will benefit Bitcoin communities not just in Canada but also specifically in under-developed areas and in areas where Bitcoin is still in its infancy. We will be offering scholarships that will allow potential speakers who mkight otherwise be limited by financial or political constraints the opportunity to visit Toronto and share valuable perspectives on Bitcoin. Again, this is an event put on by the Bitcoin community... for the Bitcoin community. It will be organized 100% by volunteers, and all proceeds will be returned to the Bitcoin community in a crowdsourced way that's decided by the membership of the Bitcoin Alliance of Canada. This is a non-profit event dedicated to assisting speakers, leaders, and business owners get their messages across. We would like everybody to participate, collaborate, and work together to make this the most meaningful Bitcoin event to date.
Please check back on our site frequently, as over the next few months we will continue to expand our already confirmed fantastic core group of speakers from around the world. We will soon announce the key dates, programs, and committees, and over the next couple months, sponsorship and exhibitor placements will be filled.
Tickets will go on sale in early 2014. Should you have any questions, should you wish to become a speaker or contribute in any way, or if you'd just like to talk Bitcoin, please give me a call at +1 416,831,9593, email me at [email protected], or contact me via Skype; user name a.diiorio.
I'm excited the Bitcoin Alliance of Canada is hosting this event. Please join us. Canada welcomes you!
Anthony Di Iorio Executive Director Bitcoin Alliance of Canada
submitted by BitcoinExpo2014 to Bitcoin [link] [comments]

"In Cryptography We Trust" - Canada's First Bitcoin Expo Coming in 2014

submitted by LifeinCircle to Bitcoin [link] [comments]

[WTS] [worldwide] Bitcoin bumper sticker - "In Cryptography We Trust" for mBTC (about 4mBTC shipped)

$1.69 each plus 99 cents shipping worldwide (shipping is only for stickers, heavier items worldwide will cost extra)
Seller since 2011, hundreds of orders shipped.
http://cryptoanarchy.com/store/index.php?route=product/product&product_id=157
submitted by cryptoanarchy to BitMarket [link] [comments]

[WTS] [worldwide] Bitcoin bumper sticker - "In Cryptography We Trust"

Priced at $1.69 per sticker. Low 99 cent shipping. Payable in BTC of course. We sell many other stickers as well, click on stickers in the menu to see more. Seller since 2011
http://cryptoanarchy.com/store/index.php?route=product/product&path=59&product_id=157
submitted by cryptoanarchy to BitMarket [link] [comments]

[WTS] [WORLDWIDE] Bitcoin bumper stickers "in cryptography we trust" payable in BTC of course

Low 99 cent worldwide shipping so long as there are only stickers in the order.
http://cryptoanarchy.com/store/index.php?route=product/product&product_id=157
submitted by cryptoanarchy to BitMarket [link] [comments]

Transcript of how Philip the tyrant admin of the Bitcoin Cash Telegram group called Spoice stupid, an idiot, a parrot among other insults then banned her instead of discussing Bitcoin Cash. That Telegram group is hostile, ABC/IFP shills run and follows the rBitcoin toxic censorship modus operandi.

David B., [18.10.20 01:46]
https://www.reddit.com/btc/comments/jdagi3/whats_up_with_the_bchn_hypocrisy/

David B., [18.10.20 01:47]
Wut x2

J Stodd, [18.10.20 01:49]
[In reply to David B.]
Their words are meaningless. They have no principles. Wish i could comment but bitcoinxio banned me from rbtc and never told me why

David B., [18.10.20 01:59]
These comments are so toxic

Spoice, [18.10.20 01:59]
In reality, the real continuation of Bitcoin as we all know it is what is carried on by BCHN, BU, BCHD and others

Spoice, [18.10.20 02:00]
ABC is changing the rules to something that is not Bitcoin

Spoice, [18.10.20 02:00]
anyone denying those facts is selling you snake oil

Spoice, [18.10.20 02:00]
If Blockstream tried to take some % to their own benefit, we would have never needed BCH in the first place

Spoice, [18.10.20 02:00]
everyone would have rejected them in a second

J Stodd, [18.10.20 02:01]
[In reply to Spoice]
Bitcoin Cash is not Bitcoin to start with, so who cares?

David B., [18.10.20 02:01]
[ Album ]

Spoice, [18.10.20 02:01]
yet we have ABC trying to pull this theft and all those puppets think it's ok

Spoice, [18.10.20 02:01]
JSTodd that's bullshit

David B., [18.10.20 02:01]
Like trying to talk to a core maxi about altcoins

Spoice, [18.10.20 02:01]
Bitcoin Cash is the most Bitcoin out of all Bitcoins

Spoice, [18.10.20 02:01]
it is the continuation of what Satoshi started

David B., [18.10.20 02:02]
Tbh they aren't even toxic

Michael Nunzio, [18.10.20 02:02]
[In reply to Spoice]
If the hash follows then it is Bitcoin Cash. Only if it doesn't is your claim true

J Stodd, [18.10.20 02:03]
[In reply to Spoice]
Bitcoin is Bitcoin. Bitcoin failed to be Peer to Peer Cash, so Bitcoin Cash attempted to fix this by forking Bitcoin and attacking the root of the problem. This does not mean Bitcoin Cash is literally Bitcoin. Adopt a different argument. Sorry if you bought into that bc of Rogers rantings

J Stodd, [18.10.20 02:05]
Bitcoin Cash can replace Bitcoin, and if Bitcoin dies and BCH wins then sure maybe it can take its name from its grave, but they are different products, trying to say Bitcoin stopped being "Bitcoin" and became BCH is a self contradiction.

Jingles, [18.10.20 02:08]
Jstodd's got some good points.

Jingles, [18.10.20 02:08]
He's learnt so much in the last year ☺️

Spoice, [18.10.20 02:08]
"Bitcoin is Bitcoin" is a false statement. BTC is just an instance of Bitcoin. Bitcoin is the set of rules defined in the whitepaper first and foremost, it is peer to peer electronic cash. BTC no longer fits that criteria. Bitcoin Cash meets them. The fork proposed by ABC also fails to meet that criteria. Therefore the continuation of Bitcoin is in whatever BU, BCHN, Flowee and others will continue.

Jingles, [18.10.20 02:09]
What rules were defined in the WP?

Spoice, [18.10.20 02:10]
Let's see which rules aren't: 1) No coinbase tax going to any centralized entity such as ABC 2) No throttling of TX throughput such as BTC

Spoice, [18.10.20 02:10]
therefore they both fail the simple "Is this Bitcoin?" test

Spoice, [18.10.20 02:11]
Finally, Michael, if you think Hash rate defines what Bitcoin is, you should stick to BTC

Jingles, [18.10.20 02:11]
21 million coins isn't in the WP

Jingles, [18.10.20 02:11]
I asked what rules did the WP define.

Spoice, [18.10.20 02:12]
Because BCH failed that criteria since it forked, therefore your point is wrong

Spoice, [18.10.20 02:12]
https://www.metzdowd.com/pipermail/cryptography/2009-January/014994.html

Spoice, [18.10.20 02:12]
The announcement of the white paper included the 21 million limit, close enough

Jingles, [18.10.20 02:12]
HIs announcement isn't the WP

Spoice, [18.10.20 02:12]
show me where Satoshi said that Amaury shoudl tax the chain?

Spoice, [18.10.20 02:12]
Doesn't matter- close enough

Jingles, [18.10.20 02:12]
Bitcoin is the set of rules defined in the whitepaper first and foremost - You

Jingles, [18.10.20 02:13]
My ears pricked up on that comment, so I'm asking you what you meant.

Spoice, [18.10.20 02:13]
Correct. Changing the 21 million hard limit is still more Bitcoin than taxing the Coinbase, yet both will never ever happen. Not to Bitcoin anyway

Jingles, [18.10.20 02:13]
If you meant Satoj's writings pre and post WP then you should be clear about it

Spoice, [18.10.20 02:13]
some bastardized chain might, just not Bitcoin

Jingles, [18.10.20 02:14]
The closest we have to anything to indicate what is "Bitcoiness" is general things like "the longest chain"

Spoice, [18.10.20 02:14]
No, it is never a single thing

David B., [18.10.20 02:15]
REEEE

Jingles, [18.10.20 02:15]
trustless, no single trusted third parties, and rules can change due to incentives via consensus

Spoice, [18.10.20 02:15]
it is a set of common sense and experiment driven and historical relevance and initial parameters and "peer to peer electronic cash" definition indicators

Spoice, [18.10.20 02:15]
never a single thing

Jingles, [18.10.20 02:16]
[In reply to Spoice]
This is like the exact opposite of what you said earlier

Jingles, [18.10.20 02:16]
Bitcoin is defined by the rules in the WP, I mean common sense.

Jingles, [18.10.20 02:16]
🤷‍♂️

Spoice, [18.10.20 02:16]
Nope, the rule set is defined in the white paper should never change, but I never said all rules are defined in the white paper

Jingles, [18.10.20 02:16]
What rules?

Spoice, [18.10.20 02:16]
It is a union

Jingles, [18.10.20 02:17]
What rules are there?

Spoice, [18.10.20 02:17]
Rules in the white paper + what continued to define Bitcoin thereafter

J Stodd, [18.10.20 02:17]
[In reply to Spoice]
> "Bitcoin is Bitcoin is a false statement."
Alas, if we cannot agree on the law of identity, aka A=A, then i dont understand how to hold a conversation with you using logic.
> BTC is an instance of Bitcoin
No, BTC is a ticker used optionally by exchanges. Other common tickers for bitcoin include XBC, XBT, BC (correct me if im wrong on any of these)
> "Bitcoin is a set of rules in the whitepaper"
Super hard to defend this. Theres no mention of a 21M supply cap, no blocksize limit *at all*, and it also says additional rules and incentives can be enforced (implying maybe they should).

Jingles, [18.10.20 02:17]
I go through this with BSVers all the time. We have no spec sheet of rules defining what Bitcoin is from Satoshi.

Spoice, [18.10.20 02:18]
Rules such as what defines a correct block, miners receiving the full incentive of mining it, etc

Jingles, [18.10.20 02:18]
The WP is a highlevel document

Spoice, [18.10.20 02:18]
The WP is a description of a scientific experiment

Spoice, [18.10.20 02:18]
if you want to start your own experiment, be my guest

Jingles, [18.10.20 02:18]
[In reply to Spoice]
Valid tx rules aren't defined in the WP

Spoice, [18.10.20 02:18]
just don't try to call it Bitcoin

Jingles, [18.10.20 02:19]
The word majority is in the WP an awful lot wouldn't you say?

Spoice, [18.10.20 02:19]
Not valid TX rules, but what a proof of work block is and how it diverts the reward to the miner, etc

Jingles, [18.10.20 02:20]
[In reply to Spoice]
and? what about BTC doesn't apply?

Jingles, [18.10.20 02:20]
I'm not arguing for any fork of BCH here.

Spoice, [18.10.20 02:20]
It no longer meets the very title of the white paper experiment, "Peer to peer electronic cash"

Spoice, [18.10.20 02:20]
The BTC instance of the experiment is destined to move away from the very title of the white paper

Jingles, [18.10.20 02:20]
It's electronic, and I use it like cash.

Spoice, [18.10.20 02:20]
that the maintainers even wanted to edit the white paper (Cobra and co) because of this fact

J Stodd, [18.10.20 02:20]
u/Spoice When did BTC stop being Bitcoin in your view? The day Amaury decided to launch the fork, before Segwit happened?
If someone else launched a fork first, they would have been "the real bitcoin"?
This is a game of whoever forks first becomes the real Bitcoin?
What if two people launched a fork at the exact same time, maybe even with identical specs?

Jingles, [18.10.20 02:21]
Where did I go wrong?

Jingles, [18.10.20 02:21]
[In reply to Spoice]
Did they?

Spoice, [18.10.20 02:21]
Doesn't matter if you use it today, its very technical fabric will have to move your transactions to 2nd layers and it will no longer be peer to peer electronic cash on chain

Jingles, [18.10.20 02:21]
peer to peer electronic cash on chain - Not in the wp

Jingles, [18.10.20 02:22]
We have satoj talking about HFT with sidechannels.

Jingles, [18.10.20 02:22]
So what?

Jingles, [18.10.20 02:23]
I think this is a good discussion Phil, nothing disrespectful is being said. I hope this is ok?

Spoice, [18.10.20 02:23]
Doesn't matter, the rule of common sense, which is closer to that title? Increasing a simple variable (Blocksize) to stay on track of the title and experiment, or introduce IOUs and Watchtowers and channels and locked BTC and that whole LN Bastardization? Which is close to the title?

Jingles, [18.10.20 02:23]
No one said that can't happen

Michael Nunzio, [18.10.20 02:24]
[In reply to Spoice]
Congratulations you've made an argument which isn't an argument.

Jingles, [18.10.20 02:25]
The whole thing that was said was the system is based on majority rules, and incentives can be changed. Majority breaks any deadlock.

David B., [18.10.20 02:25]
How to kill a coin 101

Spoice, [18.10.20 02:25]
Logic fails anyone who tries to claim BTC, ABC, BSV or any similar standalone experiments as Bitcoin, because of simple sanity checks and logic checks, often stemming out of common sense - If what you have moves you a single step away from what is otherwise the same old experiment which Satoshi wrote about and unleashed, you're not Bitcoin. If what you have moves you a step closer, it is Bitcoin. and so on and so forth.

Phlip - Not giving away coins, [18.10.20 02:25]
Wow, really fanatical almost religious statements. I guess its Sunday morning.

Jingles, [18.10.20 02:27]
[In reply to Spoice]
There's nothing common about common sense. You point to the WP to make a point, and your point isn't in there.

Spoice, [18.10.20 02:27]
Throttled and you need off-chain IOUs and always-on services to function (BTC) ? Not Bitcoin. Requires permission to be used and could be centrally confiscated on the whim of the organization behind it (BSV)? Not Bitcoin. Premined (Bitcoin Gold, Diamond)? Not Bitcoin. Taxing the miners through Coinbase and changing the incentives which were at play since day 0 (ABC)? Not Bitcoin

Spoice, [18.10.20 02:27]
simple checks really, yet those who are set to benefit will of course be oblivious to these

Phlip - Not giving away coins, [18.10.20 02:28]
This whole “Bitcoin Cash is the true Bitcoin - see whitepaper” is really stupid. It also ignores the history of how Bitcoin Cash came into existence

Jingles, [18.10.20 02:28]
Phillip, remove anyone here that has said Bitcoin Gold was the original Bitcoin immediately

Jingles, [18.10.20 02:28]
^^^^

Jingles, [18.10.20 02:29]
[In reply to Phlip - Not giving away coins]
It falls to pieces the moment it's questioned.

Spoice, [18.10.20 02:29]
It is not about "True" Bitcoin

Spoice, [18.10.20 02:30]
It is about the Bitcoin closest to the experiment which always was

Spoice, [18.10.20 02:30]
I don't care about "True" or not, they all are true

Phlip - Not giving away coins, [18.10.20 02:30]
[In reply to Jingles]
Sorry, I hve stopped reading all the sillyness above. Will reread later

Jingles, [18.10.20 02:30]
[In reply to Phlip - Not giving away coins]
I'm joking around 😂

Spoice, [18.10.20 02:30]
but the rule of entropy says I shouldn't place my money nor effort in experiments which are set to fade eventually, because they have skewed incentives

Phlip - Not giving away coins, [18.10.20 02:31]
[In reply to Spoice]
You get to chose that for yourself but you do not get to dictate it for others

David B., [18.10.20 02:31]
[In reply to Phlip - Not giving away coins]
Don't read it. You will have no braincells left

Spoice, [18.10.20 02:31]
Bitcoin as we know it has a long track record of incentives which work

Spoice, [18.10.20 02:31]
I won't ever dictate it for others

Spoice, [18.10.20 02:31]
I only would dictate it for myself, just like how I never use BTC or BSV today, I won't use ABC tomorrow

Spoice, [18.10.20 02:32]
only because they're new experiments

Spoice, [18.10.20 02:32]
interesting, and I wish them luck

Jingles, [18.10.20 02:32]
"Bitcoin is Bitcoin" is a false statement - Spoice 2020

Spoice, [18.10.20 02:32]
but I would rather stick to the Bitcoin I know

Spoice, [18.10.20 02:32]
that's all

Jingles, [18.10.20 02:32]
I won't ever dictate it for others - Also Spoice
Phlip - Not giving away coins, [18.10.20 02:32]
Bitcoin Cash came with a plan snd goals. They were clearly presented in two presentations that happened before viabtc announced they would mine with ABC software and create a coin and chain named Bitcoin Cash

Spoice, [18.10.20 02:32]
Yes, because he means BTC is Bitcoin, and that's a false statement

Jingles, [18.10.20 02:32]
How is it false?

Spoice, [18.10.20 02:32]
It is an instance of Bitcoin

Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ], [18.10.20 02:33]
[In reply to Michael Nunzio]
you're looking intimidatingly handsome in your new profile picture

Phlip - Not giving away coins, [18.10.20 02:33]
[In reply to Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ]]
Lol

Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ], [18.10.20 02:33]
[In reply to J Stodd]
actually a good question

Spoice, [18.10.20 02:34]
Anyway, those are my two cents

Spoice, [18.10.20 02:34]
Everyone is free to choose which experiments to pour their effort on and their money in

Phlip - Not giving away coins, [18.10.20 02:34]
[In reply to Spoice]
You are entitled to your opinion.

Spoice, [18.10.20 02:34]
Andreas is publishing Lightning Network books, I mean

Spoice, [18.10.20 02:34]
So to each his own

Phlip - Not giving away coins, [18.10.20 02:35]
[In reply to Spoice]
Lets leave it at that

Spoice, [18.10.20 02:35]
but Bitcoin as I know it continues with no Tax, and that in my opinion is BCH with no tax

Phlip - Not giving away coins, [18.10.20 02:35]
Ah you had to continue

Phlip - Not giving away coins, [18.10.20 02:36]
Good thing no tax is proposed by anyone
Spoice, [18.10.20 02:35]
Isn't this the Bitcoin Cash telegram?

Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ], [18.10.20 02:35]
😅

Spoice, [18.10.20 02:36]
If I don't discuss Bitcoin Cash here, where should I?

Spoice, [18.10.20 02:36]
Tax, IFP, call it what you will

Spoice, [18.10.20 02:36]
from my perspective as a user, it's one the same

J Stodd, [18.10.20 02:36]
[In reply to Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ]]
I bet nobody will answer it, either

Phlip - Not giving away coins, [18.10.20 02:37]
[In reply to Spoice]
Apparently btc /s

David B., [18.10.20 02:37]
[In reply to Spoice]
As a user what do you care?

Jingles, [18.10.20 02:37]
Ooh, can I shill the Bitcoin room in here?

Spoice, [18.10.20 02:37]
Nah, I prefer quick responses and chats

Spoice, [18.10.20 02:37]
Reddit is broken

Phlip - Not giving away coins, [18.10.20 02:37]
[In reply to Jingles]
Lol

J Stodd, [18.10.20 02:37]
[In reply to Spoice]
Nobody even pays it, it just comes out of the block reward. The block reward is not sentient, it cannot be stolen from or wronged

Phlip - Not giving away coins, [18.10.20 02:37]
Dont push your luck 😉

Jingles, [18.10.20 02:37]
[ 😀 Sticker ]

Michael Nunzio, [18.10.20 02:38]
[In reply to Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ]]
You too brother. 🙏

Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ], [18.10.20 02:38]
[In reply to Michael Nunzio]
but mine is the same....i need new ones everyone always calls me fat because of this one

Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ], [18.10.20 02:38]
literally if i say 1 thing to any troll anywhere first thing they say is "ok fatass"

Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ], [18.10.20 02:38]
i blame this dumb photographer

Michael Nunzio, [18.10.20 02:38]
[In reply to Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ]]
Don't listen.

Phlip - Not giving away coins, [18.10.20 02:39]
u/spoice maybe write a read.cash article if you really feel you need to educate people

Spoice, [18.10.20 02:39]
David, as a user I believe that each new experiment carries risk with it, why should I take part in a new fork of Bitcoin which has a new set of game-theory rules which doesn't even benefit me, rather it benefits some other entity which will take 5% of any effort or economic activity I produce on this chain? They're also off-loading the risk to me as a usebuildebusiness who choose to join their experiment.

Spoice, [18.10.20 02:40]
Why should I take that risk while the Bitcoin I know and have known for over 10 years worked perfectly for me thus far? (BCH, that is)

Jingles, [18.10.20 02:40]
small fees and empty blocks?

Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ], [18.10.20 02:41]
It will insure that a centralized group has control over development and they are by decree in the code, it's a literal take over.

Phlip - Not giving away coins, [18.10.20 02:41]
[In reply to Spoice]
“BSV-freeze the protocol - true Bitcoin” sounds like more your thing

David B., [18.10.20 02:41]
[In reply to Spoice]
Better run bitcoin core 0.1

Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ], [18.10.20 02:41]
Imagine if satoshi keyd his address in the code to be paid out of every block, but instead of paying himself started a company "Bitcoin Dev Co"

Spoice, [18.10.20 02:42]
Not really, BSV kills the incentives I am discussing too

Phlip - Not giving away coins, [18.10.20 02:42]
[In reply to Jingles]
Please stay nice now

Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ], [18.10.20 02:42]
No one would ever be able to say Bitcoin was Decentralized, Bitcoin Dev Co would get paid directly from the reward.

Jingles, [18.10.20 02:42]
[In reply to Phlip - Not giving away coins]
"BSV: We have all the Bad Idea. On chain"

Spoice, [18.10.20 02:42]
The Nash equilibrium we have tested for the past 10 years will be changed with ABC, it changed with BTC and BSV too

Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ], [18.10.20 02:42]
"Bad Solutions Verified"

Spoice, [18.10.20 02:42]
that game-theory set of incentives

Spoice, [18.10.20 02:43]
why would I want to take a risk with any of those experiments when I gain 0?

David B., [18.10.20 02:43]
Better run bitcoin core 0.1

Spoice, [18.10.20 02:43]
Nope, you're talking technical freezing of development, that's not what I am addressing

Jingles, [18.10.20 02:43]
[In reply to David B.]
Thats the BTC chain though

Phlip - Not giving away coins, [18.10.20 02:43]
[In reply to Spoice]
O please share with us your background in the subject. Or are you now just parroting others

Spoice, [18.10.20 02:44]
BSV wants to freeze the technical development and they want a stable protocol from an API/development perspective

Spoice, [18.10.20 02:44]
but from an incentive ruleset perspective, they already butchered the equilibrium Bitcoin had

Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ], [18.10.20 02:44]
[In reply to Phlip - Not giving away coins]
That's one of those phrases, when you hear it you know they are just a parrot of someones propaganda. "MUH NASH EQUILIBRIUM!"

David B., [18.10.20 02:44]
Stable = bad?

Jingles, [18.10.20 02:45]
[In reply to Jc Crown [ I DON'T DM PEOPLE - DON'T GIVE ME MONEY! ]]
I love you

Spoice, [18.10.20 02:45]
Philip, for an admin you are ought to be nicer, if you think I am parroting others you're free to think that, but to state it so bluntly in your position is just... wrong

Spoice, [18.10.20 02:46]
If you think the point I made is wrong, discuss it

Phlip - Not giving away coins, [18.10.20 02:46]
[In reply to Jingles]
Maybe talk to him in DM about that?😉

Spoice, [18.10.20 02:46]
not me

Jingles, [18.10.20 02:46]
[In reply to Phlip - Not giving away coins]
working on it.

Phlip - Not giving away coins, [18.10.20 02:46]
[In reply to Spoice]
I ought to be nicer...😂😂😂

Spoice, [18.10.20 02:47]
Also, anyone who studied Bitcoin at length and its set of incentives and game-theory ruleset should know what a Nash Equilibrium is and who the players are in the Bitcoin game

Phlip - Not giving away coins, [18.10.20 02:47]
[In reply to Spoice]
You state as fact. You get to dhow why your statements or opinions are even relevant.

Spoice, [18.10.20 02:48]
If it's not a fact, highlight how

Spoice, [18.10.20 02:48]
don't attack me

Spoice, [18.10.20 02:48]
prove me wrong

Spoice, [18.10.20 02:48]
if you fail that simple debate test

David B., [18.10.20 02:48]
How's that breakfast helping?

Spoice, [18.10.20 02:48]
you should rename from Janitor to Tyrant

Jingles, [18.10.20 02:48]
I'm still waiting to see the defined rules as per the wp

Michael Nunzio, [18.10.20 02:49]
[In reply to Spoice]
Didn't know this was stand up comedy night in here.

Michael Nunzio, [18.10.20 02:49]
I missed the memo

Phlip - Not giving away coins, [18.10.20 02:49]
If I have to prove all idiots on the internet wrong I would have a hard time. You are starting to really waste everybody’s time. You state, you prove. Or you are just generating noise

Phlip - Not giving away coins, [18.10.20 02:50]
[In reply to Spoice]
Be careful now.

Michael Nunzio, [18.10.20 02:50]
Noisy bugger.

Phlip - Not giving away coins, [18.10.20 02:52]
Getting close to just do some cleaning up.

Spoice, [18.10.20 02:52]
If you can't debate technical points I am making about Bitcoin Cash on a Bitcoin Cash Telegram, and within the span of 10 minutes you called me stupid, idiot, noisy and a parrot, you absolutely are a tyrant and I stand by my point: You should not be an admin here, nor anywhere actually. If you think I should be careful for the fear of you banning me, go ahead. You still fail to debate the simplest technical point and yet claim you can "but can't be bothered to". You remind me of that Thermos guy.

Spoice, [18.10.20 02:53]
How do people with 0 technical know how end up in these admin positions is beyond me

Jingles, [18.10.20 02:53]
I challenged your comments and you just changed the goal posts.

Phlip - Not giving away coins, [18.10.20 02:53]
[In reply to Spoice]
Ok. You are not paying me and you are free to create noise elsewhere
submitted by wisequote to btc [link] [comments]

A Sovereign Bitcoiner's Manifesto

Yesterday a post of mine got a good amount of attention in this, my favourite, sub. So I have decided to post it here in full...
More than mildly, it annoys us that we have the tools to be truly sovereign and yet we continue to submit our ourselves, and our bitcoin, to centralised authorities.
"Privacy is necessary for an open society in the electronic age"; yet KYC is demanded before we can trade.
"Not your keys, not your coins"; yet millions of bitcoin sit in the vaults of custodial exchanges and wallets.
For monetary liberty to be widespread it must be part of the social contract. We must come together to deploy decentralised systems that maintain Bitcoin's promise of sovereignty. These tools already exist and they are improving.

Awakening Our Inner Apex Predator

When Satoshi genetically engineered bitcoin, he spliced DNA from organisms that never survived (B-money, Hashcash, Bit gold). This gives bitcoin an incredible amount of survivability and fierceness. It makes it the apex predator of money.
Billions of dollars in cryptocurrency is traded, lent and borrowed on platforms that have self-custody and no KYC. Billions of dollars in cryptocurrency but not bitcoin. This decentralised financial system is called DeFi. Many Bitcoiners deny, ignore and attack DeFi because it is an invention, a mutation, that occurred on Ethereum. This reflexive defensiveness ignores a fundamental truth about Bitcoin: If any technology can provide value for Bitcoin, Bitcoin will simply adopt it. A nuanced view of DeFi recognises that it is composed both of valuable decentralisation but also of cancerous ponzis and evolutionary dead-ends. We will adopt DeFi where it improves Bitcoin DID (Defense-in-Depth) and cauterise the rest.

Defense-in-Depth

Bitcoin maintains its sovereignty through technological, cryptographic means. First and foremost, private keys provide the only means of control and ownership. Second, and most famously, Proof of Work defends the network against attack.
Attackers, however, are not limited to attacking the cryptography or the hashpower in order to limit our sovereignty. They route around and seek any weak links. "Trusted third parties are security holes". We increase the perimeter of defence by eliminating these trusted third parties.

Ethereum is Bitcoin’s Testnet

We will splice the DNA of DeFi into Bitcoin. We will increase Bitcoin's defense perimeter. The tools already exist. Ethereum is our testnet. Let it provide the radioactive pool where mutations are many. Let us observe it as it moves fast and breaks things. We will adopt it's best tools and learn to defend against its worst.
Rootstock, a Bitcoin sidechain, can be our CRISPR in this genetic adoption. We will splice the code from Ethereum dapps and improve upon them.

Cypherpunk Rouges

Cypherpunks write code, share code, review code and copy code. Sovereign individuals use this code. Like the X-men's Rouge, Bitcoiners will absorb the superpowers of others. I have been working on a DeFi dapp for decentralised bitcoin trading and lending. Hopefully you will join me, or better yet, compete with me.
"Those who would give up Liberty, to purchase a little temporary convenience, will have neither Liberty nor convenience." That will be our code.
Onwards.
submitted by OroroThePickpocket to Bitcoin [link] [comments]

Dragonchain Great Reddit Scaling Bake-Off Public Proposal

Dragonchain Great Reddit Scaling Bake-Off Public Proposal

Dragonchain Public Proposal TL;DR:

Dragonchain has demonstrated twice Reddit’s entire total daily volume (votes, comments, and posts per Reddit 2019 Year in Review) in a 24-hour demo on an operational network. Every single transaction on Dragonchain is decentralized immediately through 5 levels of Dragon Net, and then secured with combined proof on Bitcoin, Ethereum, Ethereum Classic, and Binance Chain, via Interchain. At the time, in January 2020, the entire cost of the demo was approximately $25K on a single system (transaction fees locked at $0.0001/txn). With current fees (lowest fee $0.0000025/txn), this would cost as little as $625.
Watch Joe walk through the entire proposal and answer questions on YouTube.
This proposal is also available on the Dragonchain blog.

Hello Reddit and Ethereum community!

I’m Joe Roets, Founder & CEO of Dragonchain. When the team and I first heard about The Great Reddit Scaling Bake-Off we were intrigued. We believe we have the solutions Reddit seeks for its community points system and we have them at scale.
For your consideration, we have submitted our proposal below. The team at Dragonchain and I welcome and look forward to your technical questions, philosophical feedback, and fair criticism, to build a scaling solution for Reddit that will empower its users. Because our architecture is unlike other blockchain platforms out there today, we expect to receive many questions while people try to grasp our project. I will answer all questions here in this thread on Reddit, and I've answered some questions in the stream on YouTube.
We have seen good discussions so far in the competition. We hope that Reddit’s scaling solution will emerge from The Great Reddit Scaling Bake-Off and that Reddit will have great success with the implementation.

Executive summary

Dragonchain is a robust open source hybrid blockchain platform that has proven to withstand the passing of time since our inception in 2014. We have continued to evolve to harness the scalability of private nodes, yet take full advantage of the security of public decentralized networks, like Ethereum. We have a live, operational, and fully functional Interchain network integrating Bitcoin, Ethereum, Ethereum Classic, and ~700 independent Dragonchain nodes. Every transaction is secured to Ethereum, Bitcoin, and Ethereum Classic. Transactions are immediately usable on chain, and the first decentralization is seen within 20 seconds on Dragon Net. Security increases further to public networks ETH, BTC, and ETC within 10 minutes to 2 hours. Smart contracts can be written in any executable language, offering full freedom to existing developers. We invite any developer to watch the demo, play with our SDK’s, review open source code, and to help us move forward. Dragonchain specializes in scalable loyalty & rewards solutions and has built a decentralized social network on chain, with very affordable transaction costs. This experience can be combined with the insights Reddit and the Ethereum community have gained in the past couple of months to roll out the solution at a rapid pace.

Response and PoC

In The Great Reddit Scaling Bake-Off post, Reddit has asked for a series of demonstrations, requirements, and other considerations. In this section, we will attempt to answer all of these requests.

Live Demo

A live proof of concept showing hundreds of thousands of transactions
On Jan 7, 2020, Dragonchain hosted a 24-hour live demonstration during which a quarter of a billion (250 million+) transactions executed fully on an operational network. Every single transaction on Dragonchain is decentralized immediately through 5 levels of Dragon Net, and then secured with combined proof on Bitcoin, Ethereum, Ethereum Classic, and Binance Chain, via Interchain. This means that every single transaction is secured by, and traceable to these networks. An attack on this system would require a simultaneous attack on all of the Interchained networks.
24 hours in 4 minutes (YouTube):
24 hours in 4 minutes
The demonstration was of a single business system, and any user is able to scale this further, by running multiple systems simultaneously. Our goals for the event were to demonstrate a consistent capacity greater than that of Visa over an extended time period.
Tooling to reproduce our demo is available here:
https://github.com/dragonchain/spirit-bomb

Source Code

Source code (for on & off-chain components as well tooling used for the PoC). The source code does not have to be shared publicly, but if Reddit decides to use a particular solution it will need to be shared with Reddit at some point.

Scaling

How it works & scales

Architectural Scaling

Dragonchain’s architecture attacks the scalability issue from multiple angles. Dragonchain is a hybrid blockchain platform, wherein every transaction is protected on a business node to the requirements of that business or purpose. A business node may be held completely private or may be exposed or replicated to any level of exposure desired.
Every node has its own blockchain and is independently scalable. Dragonchain established Context Based Verification as its consensus model. Every transaction is immediately usable on a trust basis, and in time is provable to an increasing level of decentralized consensus. A transaction will have a level of decentralization to independently owned and deployed Dragonchain nodes (~700 nodes) within seconds, and full decentralization to BTC and ETH within minutes or hours. Level 5 nodes (Interchain nodes) function to secure all transactions to public or otherwise external chains such as Bitcoin and Ethereum. These nodes scale the system by aggregating multiple blocks into a single Interchain transaction on a cadence. This timing is configurable based upon average fees for each respective chain. For detailed information about Dragonchain’s architecture, and Context Based Verification, please refer to the Dragonchain Architecture Document.

Economic Scaling

An interesting feature of Dragonchain’s network consensus is its economics and scarcity model. Since Dragon Net nodes (L2-L4) are independent staking nodes, deployment to cloud platforms would allow any of these nodes to scale to take on a large percentage of the verification work. This is great for scalability, but not good for the economy, because there is no scarcity, and pricing would develop a downward spiral and result in fewer verification nodes. For this reason, Dragonchain uses TIME as scarcity.
TIME is calculated as the number of Dragons held, multiplied by the number of days held. TIME influences the user’s access to features within the Dragonchain ecosystem. It takes into account both the Dragon balance and length of time each Dragon is held. TIME is staked by users against every verification node and dictates how much of the transaction fees are awarded to each participating node for every block.
TIME also dictates the transaction fee itself for the business node. TIME is staked against a business node to set a deterministic transaction fee level (see transaction fee table below in Cost section). This is very interesting in a discussion about scaling because it guarantees independence for business implementation. No matter how much traffic appears on the entire network, a business is guaranteed to not see an increased transaction fee rate.

Scaled Deployment

Dragonchain uses Docker and Kubernetes to allow the use of best practices traditional system scaling. Dragonchain offers managed nodes with an easy to use web based console interface. The user may also deploy a Dragonchain node within their own datacenter or favorite cloud platform. Users have deployed Dragonchain nodes on-prem on Amazon AWS, Google Cloud, MS Azure, and other hosting platforms around the world. Any executable code, anything you can write, can be written into a smart contract. This flexibility is what allows us to say that developers with no blockchain experience can use any code language to access the benefits of blockchain. Customers have used NodeJS, Python, Java, and even BASH shell script to write smart contracts on Dragonchain.
With Docker containers, we achieve better separation of concerns, faster deployment, higher reliability, and lower response times.
We chose Kubernetes for its self-healing features, ability to run multiple services on one server, and its large and thriving development community. It is resilient, scalable, and automated. OpenFaaS allows us to package smart contracts as Docker images for easy deployment.
Contract deployment time is now bounded only by the size of the Docker image being deployed but remains fast even for reasonably large images. We also take advantage of Docker’s flexibility and its ability to support any language that can run on x86 architecture. Any image, public or private, can be run as a smart contract using Dragonchain.

Flexibility in Scaling

Dragonchain’s architecture considers interoperability and integration as key features. From inception, we had a goal to increase adoption via integration with real business use cases and traditional systems.
We envision the ability for Reddit, in the future, to be able to integrate alternate content storage platforms or other financial services along with the token.
  • LBRY - To allow users to deploy content natively to LBRY
  • MakerDAO to allow users to lend small amounts backed by their Reddit community points.
  • STORJ/SIA to allow decentralized on chain storage of portions of content. These integrations or any other are relatively easy to integrate on Dragonchain with an Interchain implementation.

Cost

Cost estimates (on-chain and off-chain) For the purpose of this proposal, we assume that all transactions are on chain (posts, replies, and votes).
On the Dragonchain network, transaction costs are deterministic/predictable. By staking TIME on the business node (as described above) Reddit can reduce transaction costs to as low as $0.0000025 per transaction.
Dragonchain Fees Table

Getting Started

How to run it
Building on Dragonchain is simple and requires no blockchain experience. Spin up a business node (L1) in our managed environment (AWS), run it in your own cloud environment, or on-prem in your own datacenter. Clear documentation will walk you through the steps of spinning up your first Dragonchain Level 1 Business node.
Getting started is easy...
  1. Download Dragonchain’s dctl
  2. Input three commands into a terminal
  3. Build an image
  4. Run it
More information can be found in our Get started documents.

Architecture
Dragonchain is an open source hybrid platform. Through Dragon Net, each chain combines the power of a public blockchain (like Ethereum) with the privacy of a private blockchain.
Dragonchain organizes its network into five separate levels. A Level 1, or business node, is a totally private blockchain only accessible through the use of public/private keypairs. All business logic, including smart contracts, can be executed on this node directly and added to the chain.
After creating a block, the Level 1 business node broadcasts a version stripped of sensitive private data to Dragon Net. Three Level 2 Validating nodes validate the transaction based on guidelines determined from the business. A Level 3 Diversity node checks that the level 2 nodes are from a diverse array of locations. A Level 4 Notary node, hosted by a KYC partner, then signs the validation record received from the Level 3 node. The transaction hash is ledgered to the Level 5 public chain to take advantage of the hash power of massive public networks.
Dragon Net can be thought of as a “blockchain of blockchains”, where every level is a complete private blockchain. Because an L1 can send to multiple nodes on a single level, proof of existence is distributed among many places in the network. Eventually, proof of existence reaches level 5 and is published on a public network.

API Documentation

APIs (on chain & off)

SDK Source

Nobody’s Perfect

Known issues or tradeoffs
  • Dragonchain is open source and even though the platform is easy enough for developers to code in any language they are comfortable with, we do not have so large a developer community as Ethereum. We would like to see the Ethereum developer community (and any other communities) become familiar with our SDK’s, our solutions, and our platform, to unlock the full potential of our Ethereum Interchain. Long ago we decided to prioritize both Bitcoin and Ethereum Interchains. We envision an ecosystem that encompasses different projects to give developers the ability to take full advantage of all the opportunities blockchain offers to create decentralized solutions not only for Reddit but for all of our current platforms and systems. We believe that together we will take the adoption of blockchain further. We currently have additional Interchain with Ethereum Classic. We look forward to Interchain with other blockchains in the future. We invite all blockchains projects who believe in decentralization and security to Interchain with Dragonchain.
  • While we only have 700 nodes compared to 8,000 Ethereum and 10,000 Bitcoin nodes. We harness those 18,000 nodes to scale to extremely high levels of security. See Dragonchain metrics.
  • Some may consider the centralization of Dragonchain’s business nodes as an issue at first glance, however, the model is by design to protect business data. We do not consider this a drawback as these nodes can make any, none, or all data public. Depending upon the implementation, every subreddit could have control of its own business node, for potential business and enterprise offerings, bringing new alternative revenue streams to Reddit.

Costs and resources

Summary of cost & resource information for both on-chain & off-chain components used in the PoC, as well as cost & resource estimates for further scaling. If your PoC is not on mainnet, make note of any mainnet caveats (such as congestion issues).
Every transaction on the PoC system had a transaction fee of $0.0001 (one-hundredth of a cent USD). At 256MM transactions, the demo cost $25,600. With current operational fees, the same demonstration would cost $640 USD.
For the demonstration, to achieve throughput to mimic a worldwide payments network, we modeled several clients in AWS and 4-5 business nodes to handle the traffic. The business nodes were tuned to handle higher throughput by adjusting memory and machine footprint on AWS. This flexibility is valuable to implementing a system such as envisioned by Reddit. Given that Reddit’s daily traffic (posts, replies, and votes) is less than half that of our demo, we would expect that the entire Reddit system could be handled on 2-5 business nodes using right-sized containers on AWS or similar environments.
Verification was accomplished on the operational Dragon Net network with over 700 independently owned verification nodes running around the world at no cost to the business other than paid transaction fees.

Requirements

Scaling

This PoC should scale to the numbers below with minimal costs (both on & off-chain). There should also be a clear path to supporting hundreds of millions of users.
Over a 5 day period, your scaling PoC should be able to handle:
*100,000 point claims (minting & distributing points) *25,000 subscriptions *75,000 one-off points burning *100,000 transfers
During Dragonchain’s 24 hour demo, the above required numbers were reached within the first few minutes.
Reddit’s total activity is 9000% more than Ethereum’s total transaction level. Even if you do not include votes, it is still 700% more than Ethereum’s current volume. Dragonchain has demonstrated that it can handle 250 million transactions a day, and it’s architecture allows for multiple systems to work at that level simultaneously. In our PoC, we demonstrate double the full capacity of Reddit, and every transaction was proven all the way to Bitcoin and Ethereum.
Reddit Scaling on Ethereum

Decentralization

Solutions should not depend on any single third-party provider. We prefer solutions that do not depend on specific entities such as Reddit or another provider, and solutions with no single point of control or failure in off-chain components but recognize there are numerous trade-offs to consider
Dragonchain’s architecture calls for a hybrid approach. Private business nodes hold the sensitive data while the validation and verification of transactions for the business are decentralized within seconds and secured to public blockchains within 10 minutes to 2 hours. Nodes could potentially be controlled by owners of individual subreddits for more organic decentralization.
  • Billing is currently centralized - there is a path to federation and decentralization of a scaled billing solution.
  • Operational multi-cloud
  • Operational on-premises capabilities
  • Operational deployment to any datacenter
  • Over 700 independent Community Verification Nodes with proof of ownership
  • Operational Interchain (Interoperable to Bitcoin, Ethereum, and Ethereum Classic, open to more)

Usability Scaling solutions should have a simple end user experience.

Users shouldn't have to maintain any extra state/proofs, regularly monitor activity, keep track of extra keys, or sign anything other than their normal transactions
Dragonchain and its customers have demonstrated extraordinary usability as a feature in many applications, where users do not need to know that the system is backed by a live blockchain. Lyceum is one of these examples, where the progress of academy courses is being tracked, and successful completion of courses is rewarded with certificates on chain. Our @Save_The_Tweet bot is popular on Twitter. When used with one of the following hashtags - #please, #blockchain, #ThankYou, or #eternalize the tweet is saved through Eternal to multiple blockchains. A proof report is available for future reference. Other examples in use are DEN, our decentralized social media platform, and our console, where users can track their node rewards, view their TIME, and operate a business node.
Examples:

Transactions complete in a reasonable amount of time (seconds or minutes, not hours or days)
All transactions are immediately usable on chain by the system. A transaction begins the path to decentralization at the conclusion of a 5-second block when it gets distributed across 5 separate community run nodes. Full decentralization occurs within 10 minutes to 2 hours depending on which interchain (Bitcoin, Ethereum, or Ethereum Classic) the transaction hits first. Within approximately 2 hours, the combined hash power of all interchained blockchains secures the transaction.

Free to use for end users (no gas fees, or fixed/minimal fees that Reddit can pay on their behalf)
With transaction pricing as low as $0.0000025 per transaction, it may be considered reasonable for Reddit to cover transaction fees for users.
All of Reddit's Transactions on Blockchain (month)
Community points can be earned by users and distributed directly to their Reddit account in batch (as per Reddit minting plan), and allow users to withdraw rewards to their Ethereum wallet whenever they wish. Withdrawal fees can be paid by either user or Reddit. This model has been operating inside the Dragonchain system since 2018, and many security and financial compliance features can be optionally added. We feel that this capability greatly enhances user experience because it is seamless to a regular user without cryptocurrency experience, yet flexible to a tech savvy user. With regard to currency or token transactions, these would occur on the Reddit network, verified to BTC and ETH. These transactions would incur the $0.0000025 transaction fee. To estimate this fee we use the monthly active Reddit users statista with a 60% adoption rate and an estimated 10 transactions per month average resulting in an approximate $720 cost across the system. Reddit could feasibly incur all associated internal network charges (mining/minting, transfer, burn) as these are very low and controllable fees.
Reddit Internal Token Transaction Fees

Reddit Ethereum Token Transaction Fees
When we consider further the Ethereum fees that might be incurred, we have a few choices for a solution.
  1. Offload all Ethereum transaction fees (user withdrawals) to interested users as they wish to withdraw tokens for external use or sale.
  2. Cover Ethereum transaction fees by aggregating them on a timed schedule. Users would request withdrawal (from Reddit or individual subreddits), and they would be transacted on the Ethereum network every hour (or some other schedule).
  3. In a combination of the above, customers could cover aggregated fees.
  4. Integrate with alternate Ethereum roll up solutions or other proposals to aggregate minting and distribution transactions onto Ethereum.

Bonus Points

Users should be able to view their balances & transactions via a blockchain explorer-style interface
From interfaces for users who have no knowledge of blockchain technology to users who are well versed in blockchain terms such as those present in a typical block explorer, a system powered by Dragonchain has flexibility on how to provide balances and transaction data to users. Transactions can be made viewable in an Eternal Proof Report, which displays raw data along with TIME staking information and traceability all the way to Bitcoin, Ethereum, and every other Interchained network. The report shows fields such as transaction ID, timestamp, block ID, multiple verifications, and Interchain proof. See example here.
Node payouts within the Dragonchain console are listed in chronological order and can be further seen in either Dragons or USD. See example here.
In our social media platform, Dragon Den, users can see, in real-time, their NRG and MTR balances. See example here.
A new influencer app powered by Dragonchain, Raiinmaker, breaks down data into a user friendly interface that shows coin portfolio, redeemed rewards, and social scores per campaign. See example here.

Exiting is fast & simple
Withdrawing funds on Dragonchain’s console requires three clicks, however, withdrawal scenarios with more enhanced security features per Reddit’s discretion are obtainable.

Interoperability Compatibility with third party apps (wallets/contracts/etc) is necessary.
Proven interoperability at scale that surpasses the required specifications. Our entire platform consists of interoperable blockchains connected to each other and traditional systems. APIs are well documented. Third party permissions are possible with a simple smart contract without the end user being aware. No need to learn any specialized proprietary language. Any code base (not subsets) is usable within a Docker container. Interoperable with any blockchain or traditional APIs. We’ve witnessed relatively complex systems built by engineers with no blockchain or cryptocurrency experience. We’ve also demonstrated the creation of smart contracts within minutes built with BASH shell and Node.js. Please see our source code and API documentation.

Scaling solutions should be extensible and allow third parties to build on top of it Open source and extensible
APIs should be well documented and stable

Documentation should be clear and complete
For full documentation, explore our docs, SDK’s, Github repo’s, architecture documents, original Disney documentation, and other links or resources provided in this proposal.

Third-party permissionless integrations should be possible & straightforward Smart contracts are Docker based, can be written in any language, use full language (not subsets), and can therefore be integrated with any system including traditional system APIs. Simple is better. Learning an uncommon or proprietary language should not be necessary.
Advanced knowledge of mathematics, cryptography, or L2 scaling should not be required. Compatibility with common utilities & toolchains is expected.
Dragonchain business nodes and smart contracts leverage Docker to allow the use of literally any language or executable code. No proprietary language is necessary. We’ve witnessed relatively complex systems built by engineers with no blockchain or cryptocurrency experience. We’ve also demonstrated the creation of smart contracts within minutes built with BASH shell and Node.js.

Bonus

Bonus Points: Show us how it works. Do you have an idea for a cool new use case for Community Points? Build it!

TIME

Community points could be awarded to Reddit users based upon TIME too, whereas the longer someone is part of a subreddit, the more community points someone naturally gained, even if not actively commenting or sharing new posts. A daily login could be required for these community points to be credited. This grants awards to readers too and incentivizes readers to create an account on Reddit if they browse the website often. This concept could also be leveraged to provide some level of reputation based upon duration and consistency of contribution to a community subreddit.

Dragon Den

Dragonchain has already built a social media platform that harnesses community involvement. Dragon Den is a decentralized community built on the Dragonchain blockchain platform. Dragon Den is Dragonchain’s answer to fake news, trolling, and censorship. It incentivizes the creation and evaluation of quality content within communities. It could be described as being a shareholder of a subreddit or Reddit in its entirety. The more your subreddit is thriving, the more rewarding it will be. Den is currently in a public beta and in active development, though the real token economy is not live yet. There are different tokens for various purposes. Two tokens are Lair Ownership Rights (LOR) and Lair Ownership Tokens (LOT). LOT is a non-fungible token for ownership of a specific Lair. LOT will only be created and converted from LOR.
Energy (NRG) and Matter (MTR) work jointly. Your MTR determines how much NRG you receive in a 24-hour period. Providing quality content, or evaluating content will earn MTR.

Security. Users have full ownership & control of their points.
All community points awarded based upon any type of activity or gift, are secured and provable to all Interchain networks (currently BTC, ETH, ETC). Users are free to spend and withdraw their points as they please, depending on the features Reddit wants to bring into production.

Balances and transactions cannot be forged, manipulated, or blocked by Reddit or anyone else
Users can withdraw their balance to their ERC20 wallet, directly through Reddit. Reddit can cover the fees on their behalf, or the user covers this with a portion of their balance.

Users should own their points and be able to get on-chain ERC20 tokens without permission from anyone else
Through our console users can withdraw their ERC20 rewards. This can be achieved on Reddit too. Here is a walkthrough of our console, though this does not show the quick withdrawal functionality, a user can withdraw at any time. https://www.youtube.com/watch?v=aNlTMxnfVHw

Points should be recoverable to on-chain ERC20 tokens even if all third-parties involved go offline
If necessary, signed transactions from the Reddit system (e.g. Reddit + Subreddit) can be sent to the Ethereum smart contract for minting.

A public, third-party review attesting to the soundness of the design should be available
To our knowledge, at least two large corporations, including a top 3 accounting firm, have conducted positive reviews. These reviews have never been made public, as Dragonchain did not pay or contract for these studies to be released.

Bonus points
Public, third-party implementation review available or in progress
See above

Compatibility with HSMs & hardware wallets
For the purpose of this proposal, all tokenization would be on the Ethereum network using standard token contracts and as such, would be able to leverage all hardware wallet and Ethereum ecosystem services.

Other Considerations

Minting/distributing tokens is not performed by Reddit directly
This operation can be automated by smart contract on Ethereum. Subreddits can if desired have a role to play.

One off point burning, as well as recurring, non-interactive point burning (for subreddit memberships) should be possible and scalable
This is possible and scalable with interaction between Dragonchain Reddit system and Ethereum token contract(s).

Fully open-source solutions are strongly preferred
Dragonchain is fully open source (see section on Disney release after conclusion).

Conclusion

Whether it is today, or in the future, we would like to work together to bring secure flexibility to the highest standards. It is our hope to be considered by Ethereum, Reddit, and other integrative solutions so we may further discuss the possibilities of implementation. In our public demonstration, 256 million transactions were handled in our operational network on chain in 24 hours, for the low cost of $25K, which if run today would cost $625. Dragonchain’s interoperable foundation provides the atmosphere necessary to implement a frictionless community points system. Thank you for your consideration of our proposal. We look forward to working with the community to make something great!

Disney Releases Blockchain Platform as Open Source

The team at Disney created the Disney Private Blockchain Platform. The system was a hybrid interoperable blockchain platform for ledgering and smart contract development geared toward solving problems with blockchain adoption and usability. All objective evaluation would consider the team’s output a success. We released a list of use cases that we explored in some capacity at Disney, and our input on blockchain standardization as part of our participation in the W3C Blockchain Community Group.
https://lists.w3.org/Archives/Public/public-blockchain/2016May/0052.html

Open Source

In 2016, Roets proposed to release the platform as open source to spread the technology outside of Disney, as others within the W3C group were interested in the solutions that had been created inside of Disney.
Following a long process, step by step, the team met requirements for release. Among the requirements, the team had to:
  • Obtain VP support and approval for the release
  • Verify ownership of the software to be released
  • Verify that no proprietary content would be released
  • Convince the organization that there was a value to the open source community
  • Convince the organization that there was a value to Disney
  • Offer the plan for ongoing maintenance of the project outside of Disney
  • Itemize competing projects
  • Verify no conflict of interest
  • Preferred license
  • Change the project name to not use the name Disney, any Disney character, or any other associated IP - proposed Dragonchain - approved
  • Obtain legal approval
  • Approval from corporate, parks, and other business units
  • Approval from multiple Disney patent groups Copyright holder defined by Disney (Disney Connected and Advanced Technologies)
  • Trademark searches conducted for the selected name Dragonchain
  • Obtain IT security approval
  • Manual review of OSS components conducted
  • OWASP Dependency and Vulnerability Check Conducted
  • Obtain technical (software) approval
  • Offer management, process, and financial plans for the maintenance of the project.
  • Meet list of items to be addressed before release
  • Remove all Disney project references and scripts
  • Create a public distribution list for email communications
  • Remove Roets’ direct and internal contact information
  • Create public Slack channel and move from Disney slack channels
  • Create proper labels for issue tracking
  • Rename internal private Github repository
  • Add informative description to Github page
  • Expand README.md with more specific information
  • Add information beyond current “Blockchains are Magic”
  • Add getting started sections and info on cloning/forking the project
  • Add installation details
  • Add uninstall process
  • Add unit, functional, and integration test information
  • Detail how to contribute and get involved
  • Describe the git workflow that the project will use
  • Move to public, non-Disney git repository (Github or Bitbucket)
  • Obtain Disney Open Source Committee approval for release
On top of meeting the above criteria, as part of the process, the maintainer of the project had to receive the codebase on their own personal email and create accounts for maintenance (e.g. Github) with non-Disney accounts. Given the fact that the project spanned multiple business units, Roets was individually responsible for its ongoing maintenance. Because of this, he proposed in the open source application to create a non-profit organization to hold the IP and maintain the project. This was approved by Disney.
The Disney Open Source Committee approved the application known as OSSRELEASE-10, and the code was released on October 2, 2016. Disney decided to not issue a press release.
Original OSSRELASE-10 document

Dragonchain Foundation

The Dragonchain Foundation was created on January 17, 2017. https://den.social/l/Dragonchain/24130078352e485d96d2125082151cf0/dragonchain-and-disney/
submitted by j0j0r0 to ethereum [link] [comments]

Rough days transcript: the best is yet to come, kill the old system, BUIDL time, we live in a DeFi bubble, power to the edges, voting challenge and rembeber you're in control kids!

Hi everybody, Charles Hoskinson here, live from warm sunny Colorado! Always warm, always sunny, sometimes Colorado. I got my Massey Ferguson hat on. Take that off, see, my hair's all messed up. One of these days and we'll lose all that hair.
It's a rough day today and that markets are terrible down 20 percent for most people and every now and then I talk about price. I rarely do but in general let's talk about the macro. You know crypto is a unique phenomenon. It's a unique thing and these are crazy times. I remember just a few months back when coronavirus first came out and we saw basically everything just bottom out everybody went crazy. They went to cash all asset classes. Just went to hell in a handbasket and I did a video and I said guys our best days are ahead of us as an ecosystem and as an industry and what happened everything got better over time. People started getting more optimistic. You know the reality is that we are seeing an old industry die right now, the legacy financial system.
I just read Biden's tax plan. He wants to treat capital gains as ordinary income and put another 12 and a half percent on top of that. All this stuff and at the end of the day all these new taxes amount to a trillion or so extra dollars I think per year in income... Takes six years to the make back what they printed out of thin air for coronavirus and are willing to print again which begs the question why do we even pay taxes anymore if we can just print money out of thin air? We have a whole movement of people: the AOC crowd wake up every day and they say modern monetary theory, the actual supply, doesn't matter. All that matters is how much can we print and get away with it. This is where we're at as an economy right now and globally speaking a lot of other nations agree with this. So, given that the whole world, the leadership of the world, talking about negative interest rates, they're talking about predatory financial systems hyperinflation. Just print money, modern monetary theory, just print as much cash as you want and we look to the cryptocurrency industry, and god, we got a lot of problems...
I think this (week's market) collapse is probably because one of the most prominent exchanges in South Korea got hit. They got shut down by the South Korean government and they at one time were responsible for a big part of the Kimchi premium and you know what? Korean government might shut down a few more Korean exchanges and usually the market based these things in. We got crazy yield farming weird stuff going on in the DeFi space. All these other local events and their blips they don't really matter that much just like corona in the long term won't matter too much in terms of the markets. What matters is the trend and where are we going. I had a meeting with some people this morning and we talked about revolutionizing the healthcare industry and getting things better in terms of supply chains. I had another meeting with a soon-to-be former Wyoming state representative about how we're going to get governments to adopt blockchain technology. I talk every day to governors, heads of state, congressmen, senators, mayors. Some cities, sometimes very large cities, with millions of people and they all say the same thing. We need help, we need solutions, we're damn tired of the way that the old system is running. You know what? if we don't solve it a lot of people are going to get hurt or continue to be hurt.
The common theme that we all have is no one's happy. Look at the black-lives-matter protests, taking their philosophy of the organization aside, the rank and file people are there not because they love Marxism. They're there because they're unhappy with the way society is and why shouldn't they be? When my grandfather, got his first job, on my mom's side, out of the Korean war, he was a lineman and he made enough money from that job to have seven kids and have his wife stay at home. No college degree, fresh out of high school, fresh out of marine demolitions and a lineman. Five boys and two girls and he could take care of that family and save money every month. Have a car and a house and that was his standard of living. How many people in the middle class today in the United States or Europe for that matter have the ability on a single person's salary to raise seven children and have the wife or the husband stay at home? How many people, not many, why? because our monetary system has failed us. The inflationary policy has created a situation where the Jeff Bezos can have 200 billion dollars and make windfall profits every year regardless of how bad the economy is. The everyday people they don't get a pay increase, so in a lot of cases they don't get to keep their job and their money deteriorates in value a lot more than three percent per year.
Our industry has principles in that we worship the math and the protocols and the stable monetary policy. These types of things, and as corrupt as some of the exchanges can be, and some of the bad actors are, all movements suffer from these warts, and they're finite and temporary. You run out of them. At some point self-regulation kicks in or standards kick in and these bad actors flush out and what's left behind is a crucible that contains the truth of the matter which is: we're going to win as an industry. There's just no doubt in my mind. You have bad days in the market, you have damn good days in the market, you get addicted to the good ones and you hate the bad ones but at the end of the day it's only going in one direction which is crypto is going to eat the world: every voting system, every property registration system, every monetary system, the next 25 to 50 years is going to be running on the tech we build and others build and running with the principles of power to the edges.
This is the great challenge of our time. To do it in a way that it's fair, transparent, open and doesn't allow a government to co-opt it. It's gonna be a lot of fights here. The least of our concerns and matters are a red day and every now and then I like making these videos to remind people why I'm here and why you should be here too. As toxic as the trolls could be and these other people can be, none of them really matter. Markets don't really matter, what matters are the principles and the purpose behind what we do and you have to ask yourself are you happy with the way that society is? Are you happy with the money in your pocket? Are you happy with the political leadership representing your nations? Are you happy with your future and do you honestly believe if we keep doing the things that we did and continue to do that the future is going to be better or do you think it's going to be worse or stagnant?
I think too many people have woken up and they realize that if we continue doing the things that we do the future is going to be a bad place and they don't want that to happen. We're voting with our wallets, we're voting with our feet and we as a collective industry are waking up and figuring out how to build something better and there's some good days and bad days along the way. Today's a bad one but there are going to be good days tomorrow just like I told you back when corona made everything go into free fall and I told you before and I warned you about with ICO mania.
We're in a DeFi bubble right now, there's no doubt in my mind about that. I saw it in 2017 with ICO mania. I see it here and there's probably going to be worse days ahead in that respect but the trend is always the same and never forget that and never forget that real people are actually adopting these systems and using them. Every day we see more and more and every day that movement grows and what's so humbling is that I know a lot of you are here with me. It used to be pretty lonely space to be in a few years back. You know, the conferences, they didn't have many people. My first bitcoin meetup group in 2011 in Colorado is at the gypsy house cafe I think, in Denver. I registered for the event I showed up. Two people registered myself and another guy and the other guy didn't show up so I had coffee with myself. Compare that with the Shelley summit that we had in July of 2020. 10 000 attendees, 10 000 from all across the world, compare that to where we are at today just nine years later pretty amazing if you think about how fast things have grown and how many fertile beautiful ideas exist in this industry and what this industry is doing for the world as a whole.
That is why we're going to win because at the end of day who can argue against freedom? Who can argue against liberty? Who can argue against putting people in control? The only way you can is when you believe people are stupid, people are evil, people are incapable and I suppose that's a philosophical difference between those who currently lead and the people who want to replace them. The people in charge right now of the world, the big banks, the fortune 500 companies, the media, Hollywood... These things, they're very cynical, people who believe in the worst in us they look at everyday people who sustain and disgust and say these people if left to their own devices will be chaos. These people, if left to govern themselves will burn everything to the ground and destroy everything and every single time I have ever seen a bad event happen what the news doesn't show you and what those people don't talk about is how we come together and help each other out. Someone gets injured in the streets more often than not people show up and help them, people need a helping hand. Someone always shows up more often than not and this is no different. I don't believe the political process is effective anymore in any modern democracy. They've all been co-opted, perhaps they always were but what I do believe is that we can come together and change things economically which is what we're doing.
It's messy building our own money, it is messy building our own industry, it is messy. We make a lot of mistakes along the way. We lose a lot along the way, we collect some scars too while we're at it but progress every year keeps being made. The technology every year keeps getting better. Today, right here right now, provably secure proof of stake protocols are in circulation. They were a fantasy five years ago now they're a fact of life today. Right here right now snarks have evolved by an order of magnitude in every category from validation time to efficiency to proof size in all favorable ways which opens up all kinds of new applications and scalability and privacy. Today, right here right now, layer 2 protocols are more advanced than they have ever been in our industry's history giving us the ability to build payment systems that scale to billions of people. Today, right here right now, we are seeing massive innovations in governance and a fertile environment for things like approval voting, threshold voting, preference voting, quadratic voting, that will enable us to build all kinds of new treasuries and governance systems that eventually will scale to nation states.
As the politicians of today argue whether the post office can properly count paper ballots that people mail we are building voting systems with state-of-the-art cryptography living on phones where you can vote. It's just a tap of a button and enjoy more security than we have ever imagined before. That is the future this movement, is enabling humanity money flowing at the speed of thought and the speed of thought making new money. How can you compete with that? You can't unless you bring people down with cynicism and disdain and ultimately what competing vision do they offer? That you all should be in chains? That we should just be wage slaves? We should just accept that every year our money deteriorates in value? That we should just accept that the rich will get richer the poor get poorer? Every now and then they throw us table scraps and when we get real angry they usurp the movements and then install their own leadership to basically take those movements from us as we've seen so many times before and we will see again. I'm sorry that's not a road I want to walk down and I'm willing to ride rocky waters, crazy markets, crazy people in unlimited FUD and trolling but I will never apologize for believing in the best in people and I will never apologize for believing that if only we give everyone around us the tools to save themselves and society that they can do it.
They don't need great leaders and charisma. No one needs someone to tell them what to do. We all know what to do. We all know how to make the world a better place. We just have to be trusted enough to do it ourselves. You know what for the first time ever we did with bitcoin and then we did it again with ethereum and now we're doing it again with Cardano and we as a movement will continue to do it.
I believe our best days are ahead of us and every day I wake up and there's more people marching with me in that respect and one day it'll be millions and one day it'll be billions and one day all those cynics will be gone, replaced with optimists, who once again believe that tomorrow is going to be better than today and that we're going to leave the world just a little bit better than the way we found it. So, every now and then on a tough day I like making a little message and letting you guys all know it's going to be better and you know what? it will be. Just have to have faith that it will be. So, hold the line, hold strong and have faith in each other and go do something, build something, start something.
Got a lot of podcasts on the way, a lot of things coming down the pipe. For the dc-fund, a lot of opportunities to actually innovate. Multi assets are coming, soon Plutus is coming, soon guys are going to be able to build a lot. Start thinking today what's the business plan? What would you like to change, small or large. You don't complain about voting. Change voting. Your own organization, maybe you belong to a club, do a blockchain-based voting system. Maybe you have some political influence? Have a primary, democrat or republican, or your local primary or country for selecting candidates done with blockchain-based voting. Maybe you want to build a new financial product? Think about it, figure it out. There's so much there, it's all there, it's ready to go, it's for you to take and build and innovate with.
Every day I wake up I try to make the platforms better. I try to push the technology a little further along. I try to hire great people and bring them into our industry. Cardano brought the Haskell industry into the cryptocurrency space. Cardano brought a lot of academics who had never thought about cryptocurrencies into the cryptocurrency space and we made our problems their problems and as a consequence they started solving them in ways we could have never done before. Most importantly Cardano brought a lot of you into the cryptocurrency space and you never thought you'd have this level of control and freedom over the fabric of society in the direction of the human race. Don't let that slip through your fingers. Figure out what you want to do with that super power. Might be small, might be big. I dreamed big, you can dream big too, even if you want to just dream small. Every person counts, every action counts up to the hill. Y'all matter to me and to each other and we're all in this together, never forget that! So, hard day, rough day, tomorrow will be a better one. The day after will even be better. See you guys soon, take care...
Source: https://www.youtube.com/watch?v=qM192wAV4LA
On Kimchi premium: https://www.investopedia.com/terms/k/kimchi-premium.asp
EDIT: title typo -> rembeber -> remember :)
submitted by stake_pool to cardano [link] [comments]

Technical: Taproot: Why Activate?

This is a follow-up on https://old.reddit.com/Bitcoin/comments/hqzp14/technical_the_path_to_taproot_activation/
Taproot! Everybody wants it!! But... you might ask yourself: sure, everybody else wants it, but why would I, sovereign Bitcoin HODLer, want it? Surely I can be better than everybody else because I swapped XXX fiat for Bitcoin unlike all those nocoiners?
And it is important for you to know the reasons why you, o sovereign Bitcoiner, would want Taproot activated. After all, your nodes (or the nodes your wallets use, which if you are SPV, you hopefully can pester to your wallet vendoimplementor about) need to be upgraded in order for Taproot activation to actually succeed instead of becoming a hot sticky mess.
First, let's consider some principles of Bitcoin.
I'm sure most of us here would agree that the above are very important principles of Bitcoin and that these are principles we would not be willing to remove. If anything, we would want those principles strengthened (especially the last one, financial privacy, which current Bitcoin is only sporadically strong with: you can get privacy, it just requires effort to do so).
So, how does Taproot affect those principles?

Taproot and Your /Coins

Most HODLers probably HODL their coins in singlesig addresses. Sadly, switching to Taproot would do very little for you (it gives a mild discount at spend time, at the cost of a mild increase in fee at receive time (paid by whoever sends to you, so if it's a self-send from a P2PKH or bech32 address, you pay for this); mostly a wash).
(technical details: a Taproot output is 1 version byte + 32 byte public key, while a P2WPKH (bech32 singlesig) output is 1 version byte + 20 byte public key hash, so the Taproot output spends 12 bytes more; spending from a P2WPKH requires revealing a 32-byte public key later, which is not needed with Taproot, and Taproot signatures are about 9 bytes smaller than P2WPKH signatures, but the 32 bytes plus 9 bytes is divided by 4 because of the witness discount, so it saves about 11 bytes; mostly a wash, it increases blockweight by about 1 virtual byte, 4 weight for each Taproot-output-input, compared to P2WPKH-output-input).
However, as your HODLings grow in value, you might start wondering if multisignature k-of-n setups might be better for the security of your savings. And it is in multisignature that Taproot starts to give benefits!
Taproot switches to using Schnorr signing scheme. Schnorr makes key aggregation -- constructing a single public key from multiple public keys -- almost as trivial as adding numbers together. "Almost" because it involves some fairly advanced math instead of simple boring number adding, but hey when was the last time you added up your grocery list prices by hand huh?
With current P2SH and P2WSH multisignature schemes, if you have a 2-of-3 setup, then to spend, you need to provide two different signatures from two different public keys. With Taproot, you can create, using special moon math, a single public key that represents your 2-of-3 setup. Then you just put two of your devices together, have them communicate to each other (this can be done airgapped, in theory, by sending QR codes: the software to do this is not even being built yet, but that's because Taproot hasn't activated yet!), and they will make a single signature to authorize any spend from your 2-of-3 address. That's 73 witness bytes -- 18.25 virtual bytes -- of signatures you save!
And if you decide that your current setup with 1-of-1 P2PKH / P2WPKH addresses is just fine as-is: well, that's the whole point of a softfork: backwards-compatibility; you can receive from Taproot users just fine, and once your wallet is updated for Taproot-sending support, you can send to Taproot users just fine as well!
(P2WPKH and P2WSH -- SegWit v0 -- addresses start with bc1q; Taproot -- SegWit v1 --- addresses start with bc1p, in case you wanted to know the difference; in bech32 q is 0, p is 1)
Now how about HODLers who keep all, or some, of their coins on custodial services? Well, any custodial service worth its salt would be doing at least 2-of-3, or probably something even bigger, like 11-of-15. So your custodial service, if it switched to using Taproot internally, could save a lot more (imagine an 11-of-15 getting reduced from 11 signatures to just 1!), which --- we can only hope! --- should translate to lower fees and better customer service from your custodial service!
So I think we can say, very accurately, that the Bitcoin principle --- that YOU are in control of your money --- can only be helped by Taproot (if you are doing multisignature), and, because P2PKH and P2WPKH remain validly-usable addresses in a Taproot future, will not be harmed by Taproot. Its benefit to this principle might be small (it mostly only benefits multisignature users) but since it has no drawbacks with this (i.e. singlesig users can continue to use P2WPKH and P2PKH still) this is still a nice, tidy win!
(even singlesig users get a minor benefit, in that multisig users will now reduce their blockchain space footprint, so that fees can be kept low for everybody; so for example even if you have your single set of private keys engraved on titanium plates sealed in an airtight box stored in a safe buried in a desert protected by angry nomads riding giant sandworms because you're the frickin' Kwisatz Haderach, you still gain some benefit from Taproot)
And here's the important part: if P2PKH/P2WPKH is working perfectly fine with you and you decide to never use Taproot yourself, Taproot will not affect you detrimentally. First do no harm!

Taproot and Your Contracts

No one is an island, no one lives alone. Give and you shall receive. You know: by trading with other people, you can gain expertise in some obscure little necessity of the world (and greatly increase your productivity in that little field), and then trade the products of your expertise for necessities other people have created, all of you thereby gaining gains from trade.
So, contracts, which are basically enforceable agreements that facilitate trading with people who you do not personally know and therefore might not trust.
Let's start with a simple example. You want to buy some gewgaws from somebody. But you don't know them personally. The seller wants the money, you want their gewgaws, but because of the lack of trust (you don't know them!! what if they're scammers??) neither of you can benefit from gains from trade.
However, suppose both of you know of some entity that both of you trust. That entity can act as a trusted escrow. The entity provides you security: this enables the trade, allowing both of you to get gains from trade.
In Bitcoin-land, this can be implemented as a 2-of-3 multisignature. The three signatories in the multisgnature would be you, the gewgaw seller, and the escrow. You put the payment for the gewgaws into this 2-of-3 multisignature address.
Now, suppose it turns out neither of you are scammers (whaaaat!). You receive the gewgaws just fine and you're willing to pay up for them. Then you and the gewgaw seller just sign a transaction --- you and the gewgaw seller are 2, sufficient to trigger the 2-of-3 --- that spends from the 2-of-3 address to a singlesig the gewgaw seller wants (or whatever address the gewgaw seller wants).
But suppose some problem arises. The seller gave you gawgews instead of gewgaws. Or you decided to keep the gewgaws but not sign the transaction to release the funds to the seller. In either case, the escrow is notified, and if it can sign with you to refund the funds back to you (if the seller was a scammer) or it can sign with the seller to forward the funds to the seller (if you were a scammer).
Taproot helps with this: like mentioned above, it allows multisignature setups to produce only one signature, reducing blockchain space usage, and thus making contracts --- which require multiple people, by definition, you don't make contracts with yourself --- is made cheaper (which we hope enables more of these setups to happen for more gains from trade for everyone, also, moon and lambos).
(technology-wise, it's easier to make an n-of-n than a k-of-n, making a k-of-n would require a complex setup involving a long ritual with many communication rounds between the n participants, but an n-of-n can be done trivially with some moon math. You can, however, make what is effectively a 2-of-3 by using a three-branch SCRIPT: either 2-of-2 of you and seller, OR 2-of-2 of you and escrow, OR 2-of-2 of escrow and seller. Fortunately, Taproot adds a facility to embed a SCRIPT inside a public key, so you can have a 2-of-2 Taprooted address (between you and seller) with a SCRIPT branch that can instead be spent with 2-of-2 (you + escrow) OR 2-of-2 (seller + escrow), which implements the three-branched SCRIPT above. If neither of you are scammers (hopefully the common case) then you both sign using your keys and never have to contact the escrow, since you are just using the escrow public key without coordinating with them (because n-of-n is trivial but k-of-n requires setup with communication rounds), so in the "best case" where both of you are honest traders, you also get a privacy boost, in that the escrow never learns you have been trading on gewgaws, I mean ewww, gawgews are much better than gewgaws and therefore I now judge you for being a gewgaw enthusiast, you filthy gewgawer).

Taproot and Your Contracts, Part 2: Cryptographic Boogaloo

Now suppose you want to buy some data instead of things. For example, maybe you have some closed-source software in trial mode installed, and want to pay the developer for the full version. You want to pay for an activation code.
This can be done, today, by using an HTLC. The developer tells you the hash of the activation code. You pay to an HTLC, paying out to the developer if it reveals the preimage (the activation code), or refunding the money back to you after a pre-agreed timeout. If the developer claims the funds, it has to reveal the preimage, which is the activation code, and you can now activate your software. If the developer does not claim the funds by the timeout, you get refunded.
And you can do that, with HTLCs, today.
Of course, HTLCs do have problems:
Fortunately, with Schnorr (which is enabled by Taproot), we can now use the Scriptless Script constuction by Andrew Poelstra. This Scriptless Script allows a new construction, the PTLC or Pointlocked Timelocked Contract. Instead of hashes and preimages, just replace "hash" with "point" and "preimage" with "scalar".
Or as you might know them: "point" is really "public key" and "scalar" is really a "private key". What a PTLC does is that, given a particular public key, the pointlocked branch can be spent only if the spender reveals the private key of the given public key to you.
Another nice thing with PTLCs is that they are deniable. What appears onchain is just a single 2-of-2 signature between you and the developemanufacturer. It's like a magic trick. This signature has no special watermarks, it's a perfectly normal signature (the pledge). However, from this signature, plus some datta given to you by the developemanufacturer (known as the adaptor signature) you can derive the private key of a particular public key you both agree on (the turn). Anyone scraping the blockchain will just see signatures that look just like every other signature, and as long as nobody manages to hack you and get a copy of the adaptor signature or the private key, they cannot get the private key behind the public key (point) that the pointlocked branch needs (the prestige).
(Just to be clear, the public key you are getting the private key from, is distinct from the public key that the developemanufacturer will use for its funds. The activation key is different from the developer's onchain Bitcoin key, and it is the activation key whose private key you will be learning, not the developer's/manufacturer's onchain Bitcoin key).
So:
Taproot lets PTLCs exist onchain because they enable Schnorr, which is a requirement of PTLCs / Scriptless Script.
(technology-wise, take note that Scriptless Script works only for the "pointlocked" branch of the contract; you need normal Script, or a pre-signed nLockTimed transaction, for the "timelocked" branch. Since Taproot can embed a script, you can have the Taproot pubkey be a 2-of-2 to implement the Scriptless Script "pointlocked" branch, then have a hidden script that lets you recover the funds with an OP_CHECKLOCKTIMEVERIFY after the timeout if the seller does not claim the funds.)

Quantum Quibbles!

Now if you were really paying attention, you might have noticed this parenthetical:
(technical details: a Taproot output is 1 version byte + 32 byte public key, while a P2WPKH (bech32 singlesig) output is 1 version byte + 20 byte public key hash...)
So wait, Taproot uses raw 32-byte public keys, and not public key hashes? Isn't that more quantum-vulnerable??
Well, in theory yes. In practice, they probably are not.
It's not that hashes can be broken by quantum computes --- they're still not. Instead, you have to look at how you spend from a P2WPKH/P2PKH pay-to-public-key-hash.
When you spend from a P2PKH / P2WPKH, you have to reveal the public key. Then Bitcoin hashes it and checks if this matches with the public-key-hash, and only then actually validates the signature for that public key.
So an unconfirmed transaction, floating in the mempools of nodes globally, will show, in plain sight for everyone to see, your public key.
(public keys should be public, that's why they're called public keys, LOL)
And if quantum computers are fast enough to be of concern, then they are probably fast enough that, in the several minutes to several hours from broadcast to confirmation, they have already cracked the public key that is openly broadcast with your transaction. The owner of the quantum computer can now replace your unconfirmed transaction with one that pays the funds to itself. Even if you did not opt-in RBF, miners are still incentivized to support RBF on RBF-disabled transactions.
So the extra hash is not as significant a protection against quantum computers as you might think. Instead, the extra hash-and-compare needed is just extra validation effort.
Further, if you have ever, in the past, spent from the address, then there exists already a transaction indelibly stored on the blockchain, openly displaying the public key from which quantum computers can derive the private key. So those are still vulnerable to quantum computers.
For the most part, the cryptographers behind Taproot (and Bitcoin Core) are of the opinion that quantum computers capable of cracking Bitcoin pubkeys are unlikely to appear within a decade or two.
So:
For now, the homomorphic and linear properties of elliptic curve cryptography provide a lot of benefits --- particularly the linearity property is what enables Scriptless Script and simple multisignature (i.e. multisignatures that are just 1 signature onchain). So it might be a good idea to take advantage of them now while we are still fairly safe against quantum computers. It seems likely that quantum-safe signature schemes are nonlinear (thus losing these advantages).

Summary

I Wanna Be The Taprooter!

So, do you want to help activate Taproot? Here's what you, mister sovereign Bitcoin HODLer, can do!

But I Hate Taproot!!

That's fine!

Discussions About Taproot Activation

submitted by almkglor to Bitcoin [link] [comments]

Zano Newcomers Introduction/FAQ - please read!

Welcome to the Zano Sticky Introduction/FAQ!

https://preview.redd.it/al1gy9t9v9q51.png?width=424&format=png&auto=webp&s=b29a60402d30576a4fd95f592b392fae202026ca
Hopefully any questions you have will be answered by the resources below, but if you have additional questions feel free to ask them in the comments. If you're quite technically-minded, the Zano whitepaper gives a thorough overview of Zano's design and its main features.
So, what is Zano? In brief, Zano is a project started by the original developers of CryptoNote. Coins with market caps totalling well over a billion dollars (Monero, Haven, Loki and countless others) run upon the codebase they created. Zano is a continuation of their efforts to create the "perfect money", and brings a wealth of enhancements to their original CryptoNote code.
Development happens at a lightning pace, as the Github activity shows, but Zano is still very much a work-in-progress. Let's cut right to it:
Here's why you should pay attention to Zano over the next 12-18 months. Quoting from a recent update:
Anton Sokolov has recently joined the Zano team. ... For the last months Anton has been working on theoretical work dedicated to log-size ring signatures. These signatures theoretically allows for a logarithmic relationship between the number of decoys and the size/performance of transactions. This means that we can set mixins at a level from up to 1000, keeping the reasonable size and processing speed of transactions. This will take Zano’s privacy to a whole new level, and we believe this technology will turn out to be groundbreaking!
If successful, this scheme will make Zano the most private, powerful and performant CryptoNote implementation on the planet. Bar none. A quantum leap in privacy with a minimal increase in resource usage. And if there's one team capable of pulling it off, it's this one.

What else makes Zano special?

You mean aside from having "the Godfather of CryptoNote" as the project lead? ;) Actually, the calibre of the developers/researchers at Zano probably is the project's single greatest strength. Drawing on years of experience, they've made careful design choices, optimizing performance with an asynchronous core architecture, and flexibility and extensibility with a modular code structure. This means that the developers are able to build and iterate fast, refining features and adding new ones at a rate that makes bigger and better-funded teams look sluggish at best.
Zano also has some unique features that set it apart from similar projects:
Privacy Firstly, if you're familiar with CryptoNote you won't be surprised that Zano transactions are private. The perfect money is fungible, and therefore must be untraceable. Bitcoin, for the most part, does little to hide your transaction data from unscrupulous observers. With Zano, privacy is the default.
The untraceability and unlinkability of Zano transactions come from its use of ring signatures and stealth addresses. What this means is that no outside observer is able to tell if two transactions were sent to the same address, and for each transaction there is a set of possible senders that make it impossible to determine who the real sender is.
Hybrid PoW-PoS consensus mechanism Zano achieves an optimal level of security by utilizing both Proof of Work and Proof of Stake for consensus. By combining the two systems, it mitigates their individual vulnerabilities (see 51% attack and "nothing at stake" problem). For an attack on Zano to have even a remote chance of success the attacker would have to obtain not only a majority of hashing power, but also a majority of the coins involved in staking. The system and its design considerations are discussed at length in the whitepaper.
Aliases Here's a stealth address: ZxDdULdxC7NRFYhCGdxkcTZoEGQoqvbZqcDHj5a7Gad8Y8wZKAGZZmVCUf9AvSPNMK68L8r8JfAfxP4z1GcFQVCS2Jb9wVzoe. I have a hard enough time remembering my phone number. Fortunately, Zano has an alias system that lets you register an address to a human-readable name. (@orsonj if you want to anonymously buy me a coffee)
Multisig
Multisignature (multisig) refers to requiring multiple keys to authorize a Zano transaction. It has a number of applications, such as dividing up responsibility for a single Zano wallet among multiple parties, or creating backups where loss of a single seed doesn't lead to loss of the wallet.
Multisig and escrow are key components of the planned Decentralized Marketplace (see below), so consideration was given to each of them from the design stages. Thus Zano's multisig, rather than being tagged on at the wallet-level as an afterthought, is part of its its core architecture being incorporated at the protocol level. This base-layer integration means months won't be spent in the future on complicated refactoring efforts in order to integrate multisig into a codebase that wasn't designed for it. Plus, it makes it far easier for third-party developers to include multisig (implemented correctly) in any Zano wallets and applications they create in the future.
(Double Deposit MAD) Escrow
With Zano's escrow service you can create fully customizable p2p contracts that are designed to, once signed by participants, enforce adherence to their conditions in such a way that no trusted third-party escrow agent is required.
https://preview.redd.it/jp4oghyhv9q51.png?width=1762&format=png&auto=webp&s=12a1e76f76f902ed328886283050e416db3838a5
The Particl project, aside from a couple of minor differences, uses an escrow scheme that works the same way, so I've borrowed the term they coined ("Double Deposit MAD Escrow") as I think it describes the scheme perfectly. The system requires participants to make additional deposits, which they will forfeit if there is any attempt to act in a way that breaches the terms of the contract. Full details can be found in the Escrow section of the whitepaper.
The usefulness of multisig and the escrow system may not seem obvious at first, but as mentioned before they'll form the backbone of Zano's Decentralized Marketplace service (described in the next section).

What does the future hold for Zano?

The planned upgrade to Zano's privacy, mentioned at the start, is obviously one of the most exciting things the team is working on, but it's not the only thing.
Zano Roadmap
Decentralized Marketplace
From the beginning, the Zano team's goal has been to create the perfect money. And money can't just be some vehicle for speculative investment, money must be used. To that end, the team have created a set of tools to make it as simple as possible for Zano to be integrated into eCommerce platforms. Zano's API’s and plugins are easy to use, allowing even those with very little coding experience to use them in their E-commerce-related ventures. The culmination of this effort will be a full Decentralized Anonymous Marketplace built on top of the Zano blockchain. Rather than being accessed via the wallet, it will act more as a service - Marketplace as a Service (MAAS) - for anyone who wishes to use it. The inclusion of a simple "snippet" of code into a website is all that's needed to become part a global decentralized, trustless and private E-commerce network.
Atomic Swaps
Just as Zano's marketplace will allow you to transact without needing to trust your counterparty, atomic swaps will let you to easily convert between Zano and other cyryptocurrencies without having to trust a third-party service such as a centralized exchange. On top of that, it will also lead to the way to Zano's inclusion in the many decentralized exchange (DEX) services that have emerged in recent years.

Where can I buy Zano?

Zano's currently listed on the following exchanges:
https://coinmarketcap.com/currencies/zano/markets/
It goes without saying, neither I nor the Zano team work for any of the exchanges or can vouch for their reliability. Use at your own risk and never leave coins on a centralized exchange for longer than necessary. Your keys, your coins!
If you have any old graphics cards lying around(both AMD & NVIDIA), then Zano is also mineable through its unique ProgPowZ algorithm. Here's a guide on how to get started.
Once you have some Zano, you can safely store it in one of the desktop or mobile wallets (available for all major platforms).

How can I support Zano?

Zano has no marketing department, which is why this post has been written by some guy and not the "Chief Growth Engineer @ Zano Enterprises". The hard part is already done: there's a team of world class developers and researchers gathered here. But, at least at the current prices, the team's funds are enough to cover the cost of development and little more. So the job of publicizing the project falls to the community. If you have any experience in community building/growth hacking at another cryptocurrency or open source project, or if you're a Zano holder who would like to ensure the project's long-term success by helping to spread the word, then send me a pm. We need to get organized.
Researchers and developers are also very welcome. Working at the cutting edge of mathematics and cryptography means Zano provides challenging and rewarding work for anyone in those fields. Please contact the project's Community Manager u/Jed_T if you're interested in joining the team.
Social Links:
Twitter
Discord Server
Telegram Group
Medium blog
I'll do my best to keep this post accurate and up to date. Message me please with any suggested improvements and leave any questions you have below.
Welcome to the Zano community and the new decentralized private economy!
submitted by OrsonJ to Zano [link] [comments]

Quantum Resistance

Before jumping to conclusions about this post, know that I am not looking to spread any FUD but rather am trying to understand a forthcoming risk and potential solutions from an unbiased standpoint. My research has not yielded any definitive answer so I am turning here to seek direction from those more knowledgable than me.
--
When it comes to predicting quantum computing's ability to break Bitcoin cryptographically, I've seen estimates as small as two years and as large as 25 years. Either way, it is easily conceivable that quantum processors will improve to the point of threatening Bitcoin as a reliable form of currency and store of value.
One way to prevent vulnerability to quantum threats is by storing Bitcoin in an address that has only ever received Bitcoin and never sent it. Although, this is an unrealistic mitigant for an asset/currency that is intended to be bought and sold, for all trust will be lost in the network once quantum computing becomes powerful enough to hack Bitcoin. Nobody will place any value in a currency that can be hacked by sending a transaction.
Another argument I've seen is that once quantum computing is strong enough to hack Bitcoin's cryptography, Bitcoin will be a non-factor compared to the other digital security breakdowns that will have transpired. For example, nuclear codes, bank accounts, digital privacy, etc. However, those centralized networks will have the ability to preemptively update their internal security to the standard required in a quantum computing world. In a similar manner, cryptocurrency and blockchain as a whole will survive such transition via improved cryptography.
But when it comes to Bitcoin specifically, will it be possible to generate consensus among the miners to switch to a quantum resistant protocol? My research has found conflicting perspectives - one side being that in order to upgrade Bitcoin's security, it would require manual movement of coins to a new address by all users, and a burning of the coins that did not move after a "sufficient" amount of time. Burning one's assets would undoubtedly not hold in a court of law. Even if we are still several years away, an unsolvable existential threat on the horizon would be priced into the value of Bitcoin and drive it down to zero.
With that being said, are there any feasible solutions to bring Bitcoin to quantum resistance? How can Bitcoin survive this threat in the long run? What is being done currently to resolve such problem?
submitted by fuegoblue to Bitcoin [link] [comments]

Importance Of Blockchain for Business

Importance Of Blockchain for Business

Blockchain Technology
Blockchain technology has been the latest trend in finance Industry. Ever since the first cryptocurrency was published, Blockchain has gained popularity.
But ever wondered Why Blockchain is Important and why Businesses are so keen on adopting it?
Let’s take a look at it!
What is Blockchain?
Blockchain is a Public Ledger that has its data distributed to all the networks. It is a peer-to-peer network where each ledger has a copy. It consists of Blocks that hold the records of many transactions. Since the data distribution is on a ledger it is difficult for a hacker to tamper with the data. Any alteration or change in data will be noticed eventually. Due to its nature, Blockchain has been used as the foundation for many cryptocurrencies like Bitcoin.
Why Blockchain Is Important?
Decentralization
In the Decentralization system, there is no involvement of a third-party system, Blockchain Technology is Decentralized. Here all the transactions are recorded on a ledger and monitored by computers. This gives people unprecedented access to options that are not available in the market. This property of Blockchain can help businesses create banks for the people. Yes, the majority of people in India do not have a traditional bank account yet, this feature of Blockchain provides an opportunity for people to create a bank account. All they have to do is just open an online account and have access to a digital wallet instantly.
Transaction Time is Reduced
Blockchain technology adds value to the business by lowering the time required for transactions. As we know time plays a significant role in Blockchain Technology. It eliminates the time that a normal or a traditional bank would take to complete your transactions. Blockchain Program is a multi-featured desktop wallet that makes it hassle-free for businesses and its users to monitor their funds.
Immutability
This technology is immutable and creates platforms for many businesses that want to operate their system more precisely.
Example: Supply Chain Management
This feature enables companies to track their packages on the way for production and ensures there is no hamper done. They can easily verify where their items and goods are along with the supply chain, and this removes guesswork and inefficiencies.
Security
Blockchain uses complex algorithms that add a layer of security to the data on the network. It uses cryptography to complete all transactions. Each block on the network carries a unique hash, that cannot be altered by a third- party system or hackers. This gives companies an assurance that all their data is stored securely.
Role Of Blockchain In various Business Sectors:
In Banking and Finance
Digital Financial Activities are the most benefited sectors due to Blockchain like digital assets, programmable money, and smart contracts.
Some of its uses are listed below:
  • Insurance, Sales, and trading
  • Payments for domestic and international
  • Fund Launch and Trade Finance Sectors.
In Healthcare
Healthcare is another important sector that benefits from Blockchain Technology. Patients need to carry documents while visiting hospitals, or sometimes it takes a lot of time to retrieve their medical history data. Blockchain technology serves as a solution to this problem. Some of its applications are:
  • Tracing Of Drugs
  • Clinical Trials
  • Patient Consent Management
  • Securing of Electronic Health Records(ETR’s)
In Supply Chain Management
Supply Chain Management involves the movement of work from the processing of raw materials till it has been delivered satisfactorily to the customers. Blockchain can be used in supply chain management for tracking, exchange of agreements, smart contracts, and payment. It will help businesses track their product from the time it is picked, up till it reaches the customers. Since Blockchain has a ledger and all the data is stored on it, therefore it can be shared with trusted parties. This reduces any kind of fraud, errors, and tracking fees in the business. Its application in Blockchain can be listed as below:
  • Tracking payment in Automotive Suppliers
  • In the food Industry (Example: Walmart)
  • Solar Power Microgrids
Ending Thoughts
The rise in Blockchain technology has already changed the face of the technology industry and will witness massive growth in the upcoming years. According to our team of experts in Blockchain Development Services, the market is expected to climb over 39 Billion U.S dollars in size by 2025 and 69% of Banks are currently exploring Blockchain.
submitted by UltimezTechnology12 to u/UltimezTechnology12 [link] [comments]

Scaling Reddit Community Points with Arbitrum Rollup: a piece of cake

Scaling Reddit Community Points with Arbitrum Rollup: a piece of cake
https://preview.redd.it/b80c05tnb9e51.jpg?width=2550&format=pjpg&auto=webp&s=850282c1a3962466ed44f73886dae1c8872d0f31
Submitted for consideration to The Great Reddit Scaling Bake-Off
Baked by the pastry chefs at Offchain Labs
Please send questions or comments to [[email protected] ](mailto:[email protected])
1. Overview
We're excited to submit Arbitrum Rollup for consideration to The Great Reddit Scaling Bake-Off. Arbitrum Rollup is the only Ethereum scaling solution that supports arbitrary smart contracts without compromising on Ethereum's security or adding points of centralization. For Reddit, this means that Arbitrum can not only scale the minting and transfer of Community Points, but it can foster a creative ecosystem built around Reddit Community Points enabling points to be used in a wide variety of third party applications. That's right -- you can have your cake and eat it too!
Arbitrum Rollup isn't just Ethereum-style. Its Layer 2 transactions are byte-for-byte identical to Ethereum, which means Ethereum users can continue to use their existing addresses and wallets, and Ethereum developers can continue to use their favorite toolchains and development environments out-of-the-box with Arbitrum. Coupling Arbitrum’s tooling-compatibility with its trustless asset interoperability, Reddit not only can scale but can onboard the entire Ethereum community at no cost by giving them the same experience they already know and love (well, certainly know).
To benchmark how Arbitrum can scale Reddit Community Points, we launched the Reddit contracts on an Arbitrum Rollup chain. Since Arbitrum provides full Solidity support, we didn't have to rewrite the Reddit contracts or try to mimic their functionality using an unfamiliar paradigm. Nope, none of that. We launched the Reddit contracts unmodified on Arbitrum Rollup complete with support for minting and distributing points. Like every Arbitrum Rollup chain, the chain included a bridge interface in which users can transfer Community Points or any other asset between the L1 and L2 chains. Arbitrum Rollup chains also support dynamic contract loading, which would allow third-party developers to launch custom ecosystem apps that integrate with Community Points on the very same chain that runs the Reddit contracts.
1.1 Why Ethereum
Perhaps the most exciting benefit of distributing Community Points using a blockchain is the ability to seamlessly port points to other applications and use them in a wide variety of contexts. Applications may include simple transfers such as a restaurant that allows Redditors to spend points on drinks. Or it may include complex smart contracts -- such as placing Community Points as a wager for a multiparty game or as collateral in a financial contract.
The common denominator between all of the fun uses of Reddit points is that it needs a thriving ecosystem of both users and developers, and the Ethereum blockchain is perhaps the only smart contract platform with significant adoption today. While many Layer 1 blockchains boast lower cost or higher throughput than the Ethereum blockchain, more often than not, these attributes mask the reality of little usage, weaker security, or both.
Perhaps another platform with significant usage will rise in the future. But today, Ethereum captures the mindshare of the blockchain community, and for Community Points to provide the most utility, the Ethereum blockchain is the natural choice.
1.2 Why Arbitrum
While Ethereum's ecosystem is unmatched, the reality is that fees are high and capacity is too low to support the scale of Reddit Community Points. Enter Arbitrum. Arbitrum Rollup provides all of the ecosystem benefits of Ethereum, but with orders of magnitude more capacity and at a fraction of the cost of native Ethereum smart contracts. And most of all, we don't change the experience from users. They continue to use the same wallets, addresses, languages, and tools.
Arbitrum Rollup is not the only solution that can scale payments, but it is the only developed solution that can scale both payments and arbitrary smart contracts trustlessly, which means that third party users can build highly scalable add-on apps that can be used without withdrawing money from the Rollup chain. If you believe that Reddit users will want to use their Community Points in smart contracts--and we believe they will--then it makes the most sense to choose a single scaling solution that can support the entire ecosystem, eliminating friction for users.
We view being able to run smart contracts in the same scaling solution as fundamentally critical since if there's significant demand in running smart contracts from Reddit's ecosystem, this would be a load on Ethereum and would itself require a scaling solution. Moreover, having different scaling solutions for the minting/distribution/spending of points and for third party apps would be burdensome for users as they'd have to constantly shuffle their Points back and forth.
2. Arbitrum at a glance
Arbitrum Rollup has a unique value proposition as it offers a combination of features that no other scaling solution achieves. Here we highlight its core attributes.
Decentralized. Arbitrum Rollup is as decentralized as Ethereum. Unlike some other Layer 2 scaling projects, Arbitrum Rollup doesn't have any centralized components or centralized operators who can censor users or delay transactions. Even in non-custodial systems, centralized components provide a risk as the operators are generally incentivized to increase their profit by extracting rent from users often in ways that severely degrade user experience. Even if centralized operators are altruistic, centralized components are subject to hacking, coercion, and potential liability.
Massive Scaling. Arbitrum achieves order of magnitude scaling over Ethereum's L1 smart contracts. Our software currently supports 453 transactions-per-second for basic transactions (at 1616 Ethereum gas per tx). We have a lot of room left to optimize (e.g. aggregating signatures), and over the next several months capacity will increase significantly. As described in detail below, Arbitrum can easily support and surpass Reddit's anticipated initial load, and its capacity will continue to improve as Reddit's capacity needs grow.
Low cost. The cost of running Arbitrum Rollup is quite low compared to L1 Ethereum and other scaling solutions such as those based on zero-knowledge proofs. Layer 2 fees are low, fixed, and predictable and should not be overly burdensome for Reddit to cover. Nobody needs to use special equipment or high-end machines. Arbitrum requires validators, which is a permissionless role that can be run on any reasonable on-line machine. Although anybody can act as a validator, in order to protect against a “tragedy of the commons” and make sure reputable validators are participating, we support a notion of “invited validators” that are compensated for their costs. In general, users pay (low) fees to cover the invited validators’ costs, but we imagine that Reddit may cover this cost for its users. See more on the costs and validator options below.
Ethereum Developer Experience. Not only does Arbitrum support EVM smart contracts, but the developer experience is identical to that of L1 Ethereum contracts and fully compatible with Ethereum tooling. Developers can port existing Solidity apps or write new ones using their favorite and familiar toolchains (e.g. Truffle, Buidler). There are no new languages or coding paradigms to learn.
Ethereum wallet compatibility. Just as in Ethereum, Arbitrum users need only hold keys, but do not have to store any coin history or additional data to protect or access their funds. Since Arbitrum transactions are semantically identical to Ethereum L1 transactions, existing Ethereum users can use their existing Ethereum keys with their existing wallet software such as Metamask.
Token interoperability. Users can easily transfer their ETH, ERC-20 and ERC-721 tokens between Ethereum and the Arbitrum Rollup chain. As we explain in detail below, it is possible to mint tokens in L2 that can subsequently be withdrawn and recognized by the L1 token contract.
Fast finality. Transactions complete with the same finality time as Ethereum L1 (and it's possible to get faster finality guarantees by trading away trust assumptions; see the Arbitrum Rollup whitepaper for details).
Non-custodial. Arbitrum Rollup is a non-custodial scaling solution, so users control their funds/points and neither Reddit nor anyone else can ever access or revoke points held by users.
Censorship Resistant. Since it's completely decentralized, and the Arbitrum protocol guarantees progress trustlessly, Arbitrum Rollup is just as censorship-proof as Ethereum.
Block explorer. The Arbitrum Rollup block explorer allows users to view and analyze transactions on the Rollup chain.
Limitations
Although this is a bake-off, we're not going to sugar coat anything. Arbitrum Rollup, like any Optimistic Rollup protocol, does have one limitation, and that's the delay on withdrawals.
As for the concrete length of the delay, we've done a good deal of internal modeling and have blogged about this as well. Our current modeling suggests a 3-hour delay is sufficient (but as discussed in the linked post there is a tradeoff space between the length of the challenge period and the size of the validators’ deposit).
Note that this doesn't mean that the chain is delayed for three hours. Arbitrum Rollup supports pipelining of execution, which means that validators can keep building new states even while previous ones are “in the pipeline” for confirmation. As the challenge delays expire for each update, a new state will be confirmed (read more about this here).
So activity and progress on the chain are not delayed by the challenge period. The only thing that's delayed is the consummation of withdrawals. Recall though that any single honest validator knows immediately (at the speed of L1 finality) which state updates are correct and can guarantee that they will eventually be confirmed, so once a valid withdrawal has been requested on-chain, every honest party knows that the withdrawal will definitely happen. There's a natural place here for a liquidity market in which a validator (or someone who trusts a validator) can provide withdrawal loans for a small interest fee. This is a no-risk business for them as they know which withdrawals will be confirmed (and can force their confirmation trustlessly no matter what anyone else does) but are just waiting for on-chain finality.
3. The recipe: How Arbitrum Rollup works
For a description of the technical components of Arbitrum Rollup and how they interact to create a highly scalable protocol with a developer experience that is identical to Ethereum, please refer to the following documents:
Arbitrum Rollup Whitepaper
Arbitrum academic paper (describes a previous version of Arbitrum)
4. Developer docs and APIs
For full details about how to set up and interact with an Arbitrum Rollup chain or validator, please refer to our developer docs, which can be found at https://developer.offchainlabs.com/.
Note that the Arbitrum version described on that site is older and will soon be replaced by the version we are entering in Reddit Bake-Off, which is still undergoing internal testing before public release.
5. Who are the validators?
As with any Layer 2 protocol, advancing the protocol correctly requires at least one validator (sometimes called block producers) that is honest and available. A natural question is: who are the validators?
Recall that the validator set for an Arbitrum chain is open and permissionless; anyone can start or stop validating at will. (A useful analogy is to full nodes on an L1 chain.) But we understand that even though anyone can participate, Reddit may want to guarantee that highly reputable nodes are validating their chain. Reddit may choose to validate the chain themselves and/or hire third-party validators.To this end, we have begun building a marketplace for validator-for-hire services so that dapp developers can outsource validation services to reputable nodes with high up-time. We've announced a partnership in which Chainlink nodes will provide Arbitrum validation services, and we expect to announce more partnerships shortly with other blockchain infrastructure providers.
Although there is no requirement that validators are paid, Arbitrum’s economic model tracks validators’ costs (e.g. amount of computation and storage) and can charge small fees on user transactions, using a gas-type system, to cover those costs. Alternatively, a single party such as Reddit can agree to cover the costs of invited validators.
6. Reddit Contract Support
Since Arbitrum contracts and transactions are byte-for-byte compatible with Ethereum, supporting the Reddit contracts is as simple as launching them on an Arbitrum chain.
Minting. Arbitrum Rollup supports hybrid L1/L2 tokens which can be minted in L2 and then withdrawn onto the L1. An L1 contract at address A can make a special call to the EthBridge which deploys a "buddy contract" to the same address A on an Arbitrum chain. Since it's deployed at the same address, users can know that the L2 contract is the authorized "buddy" of the L1 contract on the Arbitrum chain.
For minting, the L1 contract is a standard ERC-20 contract which mints and burns tokens when requested by the L2 contract. It is paired with an ERC-20 contract in L2 which mints tokens based on whatever programmer provided minting facility is desired and burns tokens when they are withdrawn from the rollup chain. Given this base infrastructure, Arbitrum can support any smart contract based method for minting tokens in L2, and indeed we directly support Reddit's signature/claim based minting in L2.
Batch minting. What's better than a mint cookie? A whole batch! In addition to supporting Reddit’s current minting/claiming scheme, we built a second minting design, which we believe outperforms the signature/claim system in many scenarios.
In the current system, Reddit periodically issues signed statements to users, who then take those statements to the blockchain to claim their tokens. An alternative approach would have Reddit directly submit the list of users/amounts to the blockchain and distribute the tokens to the users without the signature/claim process.
To optimize the cost efficiency of this approach, we designed an application-specific compression scheme to minimize the size of the batch distribution list. We analyzed the data from Reddit's previous distributions and found that the data is highly compressible since token amounts are small and repeated, and addresses appear multiple times. Our function groups transactions by size, and replaces previously-seen addresses with a shorter index value. We wrote client code to compress the data, wrote a Solidity decompressing function, and integrated that function into Reddit’s contract running on Arbitrum.
When we ran the compression function on the previous Reddit distribution data, we found that we could compress batched minting data down to to 11.8 bytes per minting event (averaged over a 6-month trace of Reddit’s historical token grants)compared with roughly 174 bytes of on-chain data needed for the signature claim approach to minting (roughly 43 for an RLP-encoded null transaction + 65 for Reddit's signature + 65 for the user's signature + roughly 8 for the number of Points) .
The relative benefit of the two approaches with respect to on-chain call data cost depends on the percentage of users that will actually claim their tokens on chain. With the above figures, batch minting will be cheaper if roughly 5% of users redeem their claims. We stress that our compression scheme is not Arbitrum-specific and would be beneficial in any general-purpose smart contract platform.
8. Benchmarks and costs
In this section, we give the full costs of operating the Reddit contracts on an Arbitrum Rollup chain including the L1 gas costs for the Rollup chain, the costs of computation and storage for the L2 validators as well as the capital lockup requirements for staking.
Arbitrum Rollup is still on testnet, so we did not run mainnet benchmarks. Instead, we measured the L1 gas cost and L2 workload for Reddit operations on Arbitrum and calculated the total cost assuming current Ethereum gas prices. As noted below in detail, our measurements do not assume that Arbitrum is consuming the entire capacity of Ethereum. We will present the details of our model now, but for full transparency you can also play around with it yourself and adjust the parameters, by copying the spreadsheet found here.
Our cost model is based on measurements of Reddit’s contracts, running unmodified (except for the addition of a batch minting function) on Arbitrum Rollup on top of Ethereum.
On the distribution of transactions and frequency of assertions. Reddit's instructions specify the following minimum parameters that submissions should support:
Over a 5 day period, your scaling PoC should be able to handle:
  • 100,000 point claims (minting & distributing points)
  • 25,000 subscriptions
  • 75,000 one-off points burning
  • 100,000 transfers
We provide the full costs of operating an Arbitrum Rollup chain with this usage under the assumption that tokens are minted or granted to users in batches, but other transactions are uniformly distributed over the 5 day period. Unlike some other submissions, we do not make unrealistic assumptions that all operations can be submitted in enormous batches. We assume that batch minting is done in batches that use only a few percent on an L1 block’s gas, and that other operations come in evenly over time and are submitted in batches, with one batch every five minutes to keep latency reasonable. (Users are probably already waiting for L1 finality, which takes at least that long to achieve.)
We note that assuming that there are only 300,000 transactions that arrive uniformly over the 5 day period will make our benchmark numbers lower, but we believe that this will reflect the true cost of running the system. To see why, say that batches are submitted every five minutes (20 L1 blocks) and there's a fixed overhead of c bytes of calldata per batch, the cost of which will get amortized over all transactions executed in that batch. Assume that each individual transaction adds a marginal cost of t. Lastly assume the capacity of the scaling system is high enough that it can support all of Reddit's 300,000 transactions within a single 20-block batch (i.e. that there is more than c + 300,000*t byes of calldata available in 20 blocks).
Consider what happens if c, the per-batch overhead, is large (which it is in some systems, but not in Arbitrum). In the scenario that transactions actually arrive at the system's capacity and each batch is full, then c gets amortized over 300,000 transactions. But if we assume that the system is not running at capacity--and only receives 300,000 transactions arriving uniformly over 5 days-- then each 20-block assertion will contain about 200 transactions, and thus each transaction will pay a nontrivial cost due to c.
We are aware that other proposals presented scaling numbers assuming that 300,000 transactions arrived at maximum capacity and was executed in a single mega-transaction, but according to our estimates, for at least one such report, this led to a reported gas price that was 2-3 orders of magnitude lower than it would have been assuming uniform arrival. We make more realistic batching assumptions, and we believe Arbitrum compares well when batch sizes are realistic.
Our model. Our cost model includes several sources of cost:
  • L1 gas costs: This is the cost of posting transactions as calldata on the L1 chain, as well as the overhead associated with each batch of transactions, and the L1 cost of settling transactions in the Arbitrum protocol.
  • Validator’s staking costs: In normal operation, one validator will need to be staked. The stake is assumed to be 0.2% of the total value of the chain (which is assumed to be $1 per user who is eligible to claim points). The cost of staking is the interest that could be earned on the money if it were not staked.
  • Validator computation and storage: Every validator must do computation to track the chain’s processing of transactions, and must maintain storage to keep track of the contracts’ EVM storage. The cost of computation and storage are estimated based on measurements, with the dollar cost of resources based on Amazon Web Services pricing.
It’s clear from our modeling that the predominant cost is for L1 calldata. This will probably be true for any plausible rollup-based system.
Our model also shows that Arbitrum can scale to workloads much larger than Reddit’s nominal workload, without exhausting L1 or L2 resources. The scaling bottleneck will ultimately be calldata on the L1 chain. We believe that cost could be reduced substantially if necessary by clever encoding of data. (In our design any compression / decompression of L2 transaction calldata would be done by client software and L2 programs, never by an L1 contract.)
9. Status of Arbitrum Rollup
Arbitrum Rollup is live on Ethereum testnet. All of the code written to date including everything included in the Reddit demo is open source and permissively licensed under the Apache V2 license. The first testnet version of Arbitrum Rollup was released on testnet in February. Our current internal version, which we used to benchmark the Reddit contracts, will be released soon and will be a major upgrade.
Both the Arbitrum design as well as the implementation are heavily audited by independent third parties. The Arbitrum academic paper was published at USENIX Security, a top-tier peer-reviewed academic venue. For the Arbitrum software, we have engaged Trail of Bits for a security audit, which is currently ongoing, and we are committed to have a clean report before launching on Ethereum mainnet.
10. Reddit Universe Arbitrum Rollup Chain
The benchmarks described in this document were all measured using the latest internal build of our software. When we release the new software upgrade publicly we will launch a Reddit Universe Arbitrum Rollup chain as a public demo, which will contain the Reddit contracts as well as a Uniswap instance and a Connext Hub, demonstrating how Community Points can be integrated into third party apps. We will also allow members of the public to dynamically launch ecosystem contracts. We at Offchain Labs will cover the validating costs for the Reddit Universe public demo.
If the folks at Reddit would like to evaluate our software prior to our public demo, please email us at [email protected] and we'd be more than happy to provide early access.
11. Even more scaling: Arbitrum Sidechains
Rollups are an excellent approach to scaling, and we are excited about Arbitrum Rollup which far surpasses Reddit's scaling needs. But looking forward to Reddit's eventual goal of supporting hundreds of millions of users, there will likely come a time when Reddit needs more scaling than any Rollup protocol can provide.
While Rollups greatly reduce costs, they don't break the linear barrier. That is, all transactions have an on-chain footprint (because all calldata must be posted on-chain), albeit a far smaller one than on native Ethereum, and the L1 limitations end up being the bottleneck for capacity and cost. Since Ethereum has limited capacity, this linear use of on-chain resources means that costs will eventually increase superlinearly with traffic.
The good news is that we at Offchain Labs have a solution in our roadmap that can satisfy this extreme-scaling setting as well: Arbitrum AnyTrust Sidechains. Arbitrum Sidechains are similar to Arbitrum Rollup, but deviate in that they name a permissioned set of validators. When a chain’s validators agree off-chain, they can greatly reduce the on-chain footprint of the protocol and require almost no data to be put on-chain. When validators can't reach unanimous agreement off-chain, the protocol reverts to Arbitrum Rollup. Technically, Arbitrum Sidechains can be viewed as a hybrid between state channels and Rollup, switching back and forth as necessary, and combining the performance and cost that state channels can achieve in the optimistic case, with the robustness of Rollup in other cases. The core technical challenge is how to switch seamlessly between modes and how to guarantee that security is maintained throughout.
Arbitrum Sidechains break through this linear barrier, while still maintaining a high level of security and decentralization. Arbitrum Sidechains provide the AnyTrust guarantee, which says that as long as any one validator is honest and available (even if you don't know which one will be), the L2 chain is guaranteed to execute correctly according to its code and guaranteed to make progress. Unlike in a state channel, offchain progress does not require unanimous consent, and liveness is preserved as long as there is a single honest validator.
Note that the trust model for Arbitrum Sidechains is much stronger than for typical BFT-style chains which introduce a consensus "voting" protocols among a small permissioned group of validators. BFT-based protocols require a supermajority (more than 2/3) of validators to agree. In Arbitrum Sidechains, by contrast, all you need is a single honest validator to achieve guaranteed correctness and progress. Notice that in Arbitrum adding validators strictly increases security since the AnyTrust guarantee provides correctness as long as any one validator is honest and available. By contrast, in BFT-style protocols, adding nodes can be dangerous as a coalition of dishonest nodes can break the protocol.
Like Arbitrum Rollup, the developer and user experiences for Arbitrum Sidechains will be identical to that of Ethereum. Reddit would be able to choose a large and diverse set of validators, and all that they would need to guarantee to break through the scaling barrier is that a single one of them will remain honest.
We hope to have Arbitrum Sidechains in production in early 2021, and thus when Reddit reaches the scale that surpasses the capacity of Rollups, Arbitrum Sidechains will be waiting and ready to help.
While the idea to switch between channels and Rollup to get the best of both worlds is conceptually simple, getting the details right and making sure that the switch does not introduce any attack vectors is highly non-trivial and has been the subject of years of our research (indeed, we were working on this design for years before the term Rollup was even coined).
12. How Arbitrum compares
We include a comparison to several other categories as well as specific projects when appropriate. and explain why we believe that Arbitrum is best suited for Reddit's purposes. We focus our attention on other Ethereum projects.
Payment only Rollups. Compared to Arbitrum Rollup, ZK-Rollups and other Rollups that only support token transfers have several disadvantages:
  • As outlined throughout the proposal, we believe that the entire draw of Ethereum is in its rich smart contracts support which is simply not achievable with today's zero-knowledge proof technology. Indeed, scaling with a ZK-Rollup will add friction to the deployment of smart contracts that interact with Community Points as users will have to withdraw their coins from the ZK-Rollup and transfer them to a smart contract system (like Arbitrum). The community will be best served if Reddit builds on a platform that has built-in, frictionless smart-contract support.
  • All other Rollup protocols of which we are aware employ a centralized operator. While it's true that users retain custody of their coins, the centralized operator can often profit from censoring, reordering, or delaying transactions. A common misconception is that since they're non-custodial protocols, a centralized sequencer does not pose a risk but this is incorrect as the sequencer can wreak havoc or shake down users for side payments without directly stealing funds.
  • Sidechain type protocols can eliminate some of these issues, but they are not trustless. Instead, they require trust in some quorum of a committee, often requiring two-third of the committee to be honest, compared to rollup protocols like Arbitrum that require only a single honest party. In addition, not all sidechain type protocols have committees that are diverse, or even non-centralized, in practice.
  • Plasma-style protocols have a centralized operator and do not support general smart contracts.
13. Concluding Remarks
While it's ultimately up to the judges’ palate, we believe that Arbitrum Rollup is the bakeoff choice that Reddit kneads. We far surpass Reddit's specified workload requirement at present, have much room to optimize Arbitrum Rollup in the near term, and have a clear path to get Reddit to hundreds of millions of users. Furthermore, we are the only project that gives developers and users the identical interface as the Ethereum blockchain and is fully interoperable and tooling-compatible, and we do this all without any new trust assumptions or centralized components.
But no matter how the cookie crumbles, we're glad to have participated in this bake-off and we thank you for your consideration.
About Offchain Labs
Offchain Labs, Inc. is a venture-funded New York company that spun out of Princeton University research, and is building the Arbitrum platform to usher in the next generation of scalable, interoperable, and compatible smart contracts. Offchain Labs is backed by Pantera Capital, Compound VC, Coinbase Ventures, and others.
Leadership Team
Ed Felten
Ed Felten is Co-founder and Chief Scientist at Offchain Labs. He is on leave from Princeton University, where he is the Robert E. Kahn Professor of Computer Science and Public Affairs. From 2015 to 2017 he served at the White House as Deputy United States Chief Technology Officer and senior advisor to the President. He is an ACM Fellow and member of the National Academy of Engineering. Outside of work, he is an avid runner, cook, and L.A. Dodgers fan.
Steven Goldfeder
Steven Goldfeder is Co-founder and Chief Executive Officer at Offchain Labs. He holds a PhD from Princeton University, where he worked at the intersection of cryptography and cryptocurrencies including threshold cryptography, zero-knowledge proof systems, and post-quantum signatures. He is a co-author of Bitcoin and Cryptocurrency Technologies, the leading textbook on cryptocurrencies, and he has previously worked at Google and Microsoft Research, where he co-invented the Picnic signature algorithm. When not working, you can find Steven spending time with his family, taking a nature walk, or twisting balloons.
Harry Kalodner
Harry Kalodner is Co-founder and Chief Technology Officer at Offchain Labs where he leads the engineering team. Before the company he attended Princeton as a Ph.D candidate where his research explored economics, anonymity, and incentive compatibility of cryptocurrencies, and he also has worked at Apple. When not up at 3:00am writing code, Harry occasionally sleeps.
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