Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it
I found this exact prefix '19vkiEajfhu' within the 69-bit range, but from what I've read from more knowledgeable people on the forum, it may not have much significance idk. I'm just a hobbyist 
You need to prove the 19vkiEajfhu prefix you found.
Otherwise, you won't be listened to much.
Edit;
After scanning 9000 trillion keys for the actual address (the good hash) of Puzzle 69, there was still no 53 bits or larger prefix found.
61eb8a50c86b0584bb727dd65bed8d2400d6d5aa
H160 - Is the first 61eb8a50c86b0 the one you mentioned as 53 bits?
If that's what you mean, I have it.
Freebie for all you prefix hunters.
While you guys were scanning hundreds of trillions of keys for a 53 bit prefix match, I found one using grep on the Loyce Club All BTC addresses list.
Used by someone on Nov 20, 2024, a few days after 66 was solved. The pubkey is there so the private key can be found in a few seconds.
https://mempool.space/address/19vkiEajfhnHnZjGpogP6Rv8sUQFvF7PiS
Newbie Disclaimer: This information is for entertainment purposes only, and cannot and will not aid you in your search for the prize, no matter how strongly you believe so.