Earlier quoted context omitted.
400k I think is no problem. I heard of someone with 10,000 BTC having some serious trouble finding a buyer though.
I can't imagine that getting that filled OTC reasonably close to the mark would be serious trouble. Germany managed to sell 50,000 BTC without much trouble a few months ago. Then again, it may be serious trouble if you have serious issues explaining the source.
Bitcoin puzzle #66 was solved: 6.6 BTC (~$400k) withdrawn
231–240 of 428 posts
Re: Bitcoin puzzle #66 was solved: 6.6 BTC (~$400k) withdrawn
#232Earlier quoted context omitted.
There is actually no way to avoid this, aside from setting the Fee nearly to the reward. It's essentially MitM all the way down. even the private mempool can attempt a double-spend with a larger fee, get one transaction ahead, then try to maintain an edge long enough to be the "longest branch" for consensus - the 51% attack only needs 33% in reality, much less when your the private mempool that can take advantage of…
Isn't this a bit insane? Does this not imply the entire Bitcoin protocol is fundamentally flawed?
Re: Bitcoin puzzle #66 was solved: 6.6 BTC (~$400k) withdrawn
#233Earlier quoted context omitted.
Vitalik got indirectly pwned by the infamous DAO smart contract hack, but had the social clout to pause/rollback the supposedly decentralised/immutable Blockchain. Maybe not the best example of cryptographic security.
how would anything ever be immutable if people can reassign the symbol/pointer/name? the DAO hack happened, immutably, no one disputes it. the hashes and blocks and transactions are well-known. so there was a "schism", that explicitly validates the fact that without this large-scale cooperation, without the redefinition of what Ethereum is, it would be still be what is on that other branch. these both provide evidenc…
The fact that there are far fewer users of Ethereum Classic (and the market cap is significantly lower) is a testament to how much people care about the community which chose to follow a different history of the Ethereum network.
Re: Bitcoin puzzle #66 was solved: 6.6 BTC (~$400k) withdrawn
#234Earlier quoted context omitted.
No private key was posted too early. What happened is the person who spent all the computing power to brute force the 66 bits broadcasted, naively, a transaction to send the 6.6 BTC reward to his wallet. However, when doing so, the public key is by design revealed on the blockchain. Someone's bot whose sole purpose is to steal this puzzles rewards was monitoring the blockchain and spotted the transaction before it go…
How would said bot have recognized this transaction was one of these puzzles, and thus worth brute-forcing? Given only a random public key, is it possible to quickly recognize when its corresponding private key has weak entropy?
No, but it is possible to quickly recognise that it matches a published puzzle address, which is derived from the public key. And the amount held by that address is public knowlege (it's on the blockchain).
Re: Bitcoin puzzle #66 was solved: 6.6 BTC (~$400k) withdrawn
#235Earlier quoted context omitted.
Sure, here is a nice little presentation on the puzzle: https://rya.nc/forensic-bitcoin-cracking.html The main discussion thread on the bitcoin forum is this but it has a low signal-to-noise ratio: https://bitcointalk.org/index.php?topic=1306983.0 There is a secondary thread here: https://bitcointalk.org/index.php?topic=5218972.0 The point of the puzzle is indeed to brute force some private keys (not public keys), bu…
First, a question: is there something similar for other blockchains? And, a clarification, when I said public keys I referred to public keys that match an unknown private key but I understand now (am I correct?) that this puzzle is purely brute forcing private keys with a lot of zeroes and then matching with the addresses in the blockchain (which would be a function from the public key).
Re: Bitcoin puzzle #66 was solved: 6.6 BTC (~$400k) withdrawn
#236Re: Bitcoin puzzle #66 was solved: 6.6 BTC (~$400k) withdrawn
#237Earlier quoted context omitted.
I had the same reaction. Isn't Bitcoin wasting enough energy as it is?
What if it’s 100% green energy? Is it a waste?
Re: Bitcoin puzzle #66 was solved: 6.6 BTC (~$400k) withdrawn
#238That’s not a trivial price. Who finance these puzzles?
Re: Bitcoin puzzle #66 was solved: 6.6 BTC (~$400k) withdrawn
#239Earlier quoted context omitted.
that it's relatively self aware, in particular about energy consumption concerns, is mildly intriguing i think
the global warming consensus dominates the public discourse, the idea that somebody involved in crypto is not aware of energy consumption is a bit absurd
Re: Bitcoin puzzle #66 was solved: 6.6 BTC (~$400k) withdrawn
#240Earlier quoted context omitted.
No private key was posted too early. What happened is the person who spent all the computing power to brute force the 66 bits broadcasted, naively, a transaction to send the 6.6 BTC reward to his wallet. However, when doing so, the public key is by design revealed on the blockchain. Someone's bot whose sole purpose is to steal this puzzles rewards was monitoring the blockchain and spotted the transaction before it go…
As much as this sucks, I absolutely love how the blockchain is real life version of a Dark Forest