Quote from: albert0bsd on March 19, 2024, 03:41:28 PM

Quote from: AliBah on March 19, 2024, 02:29:11 PM

By which program you cracked that? and how to find thats in what range?

I use keyhunt the program that i develop:

https://bitcointalk.org/index.php?topic=5322040.0
https://github.com/albertobsd/keyhunt

But other programs can also be used like Kangaroo

https://github.com/JeanLucPons/Kangaroo

There is no way to know the range of an address.

But since we are talking here of puzzle 66 i did the test in the bit 66 just to check if that address was in that range, and actually the key is of that address is in that range!!

Other address besides of low bit puzzles aren't vulnerable to this.

Quote from: Baskentliia on March 19, 2024, 03:16:54 PM

As soon as the person who finds puzzle 66 sends the transaction to the network, pubkey will appear without requiring network approval. Once Pubkey appears it will take 1 second to find the private key. Then, someone else will spend again because the network approval has not yet occurred. The person with the highest network approval will own the bitcoins. Even if you send with a high transaction fee, the person who receives a higher transaction fee and network approval than you will win. For this reason, Low puzzles are problematic.

Exactly all the non-confirmed transacctions are public avaible in the mempool of each node.

Also there is sites to check them https://mempool.space/ also they offer some api to check for some values

https://mempool.space/docs/api/rest#get-address-transactions-mempool

Once that you get the TX id, you need to download the Raw transaction, decode it and extract the publickey and that is easy to do if you know what are you doing.

Quote from: AliBah on March 19, 2024, 03:39:51 PM

If find the Pkey by pubkey is so easy like this, then why puzzle 130 didnt solve yet?

Well for puzzle 66 is really easy (some minutes/seconds) but since the complexity is exponential it will take a lot of time do that for those bits ranges, months or years depending of hardware.

Here we are talking of low bit puzzles less than 80 bits are solvables by GPU almost in less than 10 minutes (in avarage the time needed to mine a block)

Hey Alberto, I want to know how to get private key for non-confirmed transactions if we get the Uncompressed Public key from the https://mempool.space/ Raw Txns, i decoded the public key but it was uncompressed public key and if we can't calculate private key from uncompressed public key how to mine the transaction??. Please reply asap.