Hi I have been interested in the puzzle for several months and after months of scanning and learning I found a site that seems to have scanned all the range' in #64 puzzle's keyspace (from 2^63 till 2^64-1 decimal, 0x8000 0000 0000 0000 - 0xFFFF FFFF FFFF FFFF) and he find nothing.
https://hashkeys.club/64/.
How is possible? Sorry for google translate.
Can someone explain to me!
The site is probably like other sites where when you go to a page, the site script runs the applicable private keys for that page and generates the corresponding address. The site hasn't scanned all of the range, it scans when a page is visited.
Example, let's just say each page is dedicated to 100 keys.
Page 1 = private keys 8000000000000000 + 100
Page 2 = page 1 end key + 100
Page 3 = page 2 end key + 100
So in order for the site to have scanned the entire range, every page needs visited.