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310 Bitcoin challenge has been solved
- savethefuture 8y agoWell that didn't last long. I see the btc has been drained but who solved it, and where is the solution, will there be one?
- InterestBazinga 8y agoAccording to the author, there will be one after someone solves the 0.31 BTC puzzle. "I will most certainly do so <provide a solution> but at this moment the 0.31 BTC wallet is still unsolved. I'm surprised because I thought the solution to the 310 BTC wallet was the most complex one." - author
- csomar 8y agoIt is possible that the 310 BTC challenge is harder but has higher ROI. If the challenge is very complex, the guy might have just skipped the 0.3 BTC and focused on the big price.
- jumelles 8y agoOne reward is a thousand times the size of the other - I bet that's the one people focused on.
- rocqua 8y agoFits with the conspiracy theory that the 310BTC key wasn't actually in the picture, and the puzzle author just withdrew the money himself. This gives an excuse for not telling a solution, which would hide the fact that there is no solution.
- walrus01 8y agoAt today's rate that is about $1.89 million of btc. Why would someone give away nearly $2m of btc as a publicity stunt?
- fosk 8y agoBecause they have 50,000 more. It was very easy to accumulate BTC in the early days. As usual, hindsight 20/20.
- walrus01 8y agoMaybe I'm cynical but if I had 50,000 BTC and wasn't ultra bullish on cryptocurrency in general, I would slowly sell it off at a moderate rate sufficient to turn it into real USD denominated securities, while not flooding the market (basically pick some top-20 performing ETFs and mutual funds). True believers and zealots will of course "HODL".
- larrysalibra 8y agoLots of people took that exact same strategy at what in hindsight now looks like ridiculously low prices like $1 or $10 or $100. Those people don’t have 50,000 or often any bitcoin left.
- toxik 8y agoYour assets are only really worth something when you sell them. Many more should have sold at the height of the boom last year.
- acjohnson55 8y agoWhile true, that's hardly actionable. It's impossible to repeatedly pick peaks.
- brownbat 8y ago
- colemannugent 8y agoI love these kinds of puzzles. Can't wait for the write-up of the solution.
- nimmen 8y agoTo take this idea further... Wonder if it would be possible to click/mine-bait to alternative "branch" consensus :)
- zawerf 8y agoIs there a discussion thread somewhere? There are 18 three digit hexadecimals in the puzzle. If the answer is a permutation of these, then that's just 18 factorial which is 6.4 * 10^15. That is totally bruteforcable without even thinking about the puzzle (and totally worth spinning up a cluster for). I don't know anything about bitcoin though and 54 characters seems too short to be a private key? You can also brute force 10 more interspersed characters for a slowdown factor of 16^10 * (64 choose 10) = 9.9 * 10^15. So then it's a total cost of 6.3*10^31. Still bruteforceable but more expensive if you're wrong about it.
- ytlty 8y agoFrom the reddit thread, there's some information on how the basic wallet was solved.: https://docs.google.com/document/d/1nUAhlC_n21ZLZcRAHpLw9G--gpk4NUVIJqVp9F68qp4/preview https://docs.google.com/document/d/1nUAhlC_n21ZLZcRAHpLw9G--...
- zawerf 8y agoMan I was totally off on how those hexes are used. Thanks for the link!
- Kiro 8y agoAlso, that's just for the basic wallet with 0.1 BTC in it.
- sometime 8y agoHow out of possibly hundreds of different operations that could take the hex table and and that date in possibly 5 different date formats as arguments, would you find out that it's shift key and YYYYMMDD?
- nothrabannosir 8y agoWild guess: start with shift key "301", see "201" come out. Use an 8 for the next, and it's a 3. Bingo. (I would never in a million lifetimes have guessed that bip thing. How do people even know this?)
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- modeless 8y agoI like how bitcoin enables people to set up puzzle bounties like this. Looks like there's a subreddit for it: https://www.reddit.com/r/bitcoinpuzzles/ https://www.reddit.com/r/bitcoinpuzzles/ I might monitor that sub for more bounties, I had no idea there was one this large floating around.
- etatoby 8y agoI would have given it my full time attention if I knew there was a $2M game like this around. That prize is crazy.
- Hydraulix989 8y agoThe chances of any one person winning that prize are quite slim.
- foota 8y agoI suspect they're less slim than you're suggesting if you're a mathematically inclined person.
- sireat 8y agoThere were only 180 or so registrations so the chances were quite good assuming people were of roughly equal skill and inclination. The problem was deciding whether there really was the correct private key encoded in the picture. I mean how do you ensure that this is not a wild goose chase? It would be roughly analogous to an anonymous millionaire showing a pot of gold on TV (with respectable jewelers certifying that it really is gold) and then saying it will be buried somewhere in Arizona desert, here's the puzzle with the location. (I believe there are some real life treasure hunts still ongoing based on the above premise) In this case what stopped me from even trying were the discrepancy in the amounts. 0.1BTC and 0.2 BTC and 0.31BTC seemed like reasonable amounts and then the sudden jump to 310 BTC seemed unreal. Yes the guy had the private key to 310BTC but was it in the picture? In fact, how do we know that 'Marc' is not someone affiliated with him/her?
- vladislav 8y agoOne can think of many better ways to harness human intelligence than work on an arbitrary puzzle... unless this is an interview for something much bigger.
- Alex3917 8y agoI mean pretty much the only math that didn't come from arbitrary puzzle solving was that which was done for religious purposes, and that stuff powers pretty much all of modern society.
- Nuzzerino 8y agoReligious purposes? I'm curious to know what you meant specifically. Metaphysics?
- Alex3917 8y agoGeometry, calculus, set theory, etc.
- gjm11 8y agoIn what sense was all that done "for religious purposes"? The ancient Greeks developed a ton of geometry. I'm not sure how we could ever know for sure why they did it, but a clue might be in the name of the field: geo-metria, earth-measurement. (And it's known that some of them made use of geometry for practical purposes, or at least proposed doing so.) Newton (so far as I can tell) developed calculus in order to do physics. Neither arbitrary puzzle-solving nor religion (though I'm sure Newton enjoyed solving puzzles and he was a religious believer). Cantor certainly had some peculiar religious ideas that may have motivated his work on the beginnings of set theory. On the other hand, his first publication on the subject looks as if its goal is to provide a beautiful short proof of a theorem already proved by Liouville (on the existence of transcendental numbers); I suppose you could call that a "puzzle" on the grounds that everything in pure mathematics is puzzles, but I think Cantor would have viewed it as a practical application -- in the sense that it's useful for something else in mathematics. Puzzle-solving, perhaps, but not arbitrary puzzle-solving.
- quickthrower2 8y agoWorth more than a pre-shredded Banksy, and looks better too!
- deleted 8y ago[deleted]
- mikorym 8y agoDoes anyone know how long this puzzle had been up?
- nathan_f77 8y agoWow, that's a huge prize. And that puzzle was insanely difficult, I'm very impressed that someone was able to solve it. I had a lot of fun making a Bitcoin "treasure hunt" last year [1], and I'm going to do another one in the next few months. I think this time it will be more of a coding challenge than a puzzle. And I'm only giving away $500, not $2M! But if that sounds fun, you can sign up for the mailing list at the bottom. I'll also be posting it on https://www.reddit.com/r/bitcoinpuzzles/ https://www.reddit.com/r/bitcoinpuzzles/ [1] https://formapi.io/blog/posts/bitcoin-treasure-hunt/ https://formapi.io/blog/posts/bitcoin-treasure-hunt/
- ttoinou 8y agoThey should do this when a new Project Euler problems comes out :) https://projecteuler.net/recent https://projecteuler.net/recent