Quote from: kano on August 07, 2024, 04:46:59 PM

Since the transaction is going to go public as soon as it ends in a block, I'm wondering what's gained by not distributing your transaction to the network before that happens.

I think citb0in's question origins from the Bitcoin puzzle threads where I've seen him from time to time posting. The problem is when you find a low entropy private key like currently open puzzle #67. If you try to publicly withdraw the ~6.7BTC from public address 1BY8GQbnueYofwSuFAT3USAhGjPrkxDdW9 you reveal the so far unknown public key. For such a low entropy private key that is behind above address, it can be found within seconds with the disclosed public key.

The result will be stealer bots replacing the solver's withdrawal transaction with their own due to FullRBF commonly active at mining pools. And pools would've an incentive to participate in such a scheme as every replacement increases the fee for the transaction turning the puzzle's coins into fees.

If someone finds the private key for currently still unsolved lower puzzles like #67, #68, #69, #71, ... (no multiples of 5) their only chance is apparently currently to use slipstream.mara.com or mine a solo block which the solver assembled on their own with a hidden mempool. The latter isn't really a viable option for apparent reasons.