User of the Bitcoin Talk forum under the username zhengxingshui123 claimed to have solved the BTC Puzzle problem 66 and received the reward of 6.6BTC successfully. However, during the transfer of the reward, the funds were mysteriously drained from the account due to a bot manipulating the transaction.
BTC Puzzle is a Bitcoin puzzle introduced in 2015, involving creating a Bitcoin account with a large initial private key starting with 0 and guessing a limited number of Bitcoins. In the case of problem 66, the amount of Bitcoins to be guessed was 66, with an estimated reward value of approximately 12 million baht.
After zhengxingshui123 announced the transfer message, a similar transfer order was issued but with an added fee of 44 dollars, leading to the confirmation of the transfer order. It is suspected that someone monitored the transfer orders, and having access to the public key used for transfers would make it easier to solve the problem. Malicious individuals could potentially intercept and alter transfer orders meant for problem solvers.
The solution for those attempting to solve subsequent puzzle problems is to initiate transfers through a Bitcoin pool that does not publicly announce transactions. This prevents the general public from seeing the transfer orders only after the transactions are recorded.
Source – Hacker’s News
TLDR: User on Bitcoin Talk solved BTC Puzzle 66 but lost reward due to bot manipulating transfer. Puzzle involves Bitcoin account with specific private key and limited Bitcoin guessing. Solution involves transferring through non-public Bitcoin pool to avoid interception.
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