Or might the hash litte bit rigged?... some how not so distributed ?
But the probability of long prefix over 15 digit below 5 trilion range i think so low ? 🤔
Or anyone here discover 15 digit prefix with distance below 5 trilion private key range ? 🤔
The hash's rigged.
There is no way that, with whatever 15 digits prefix, you'll ever find two private keys on secp256k1, right next to each other, having a common 15 digit base58 prefix in address.
Is this what you wanted to hear? If so, learn that it's wrong, and it's basically a certainty that with any 15 digit prefix you choose, somewhere on the curve, there will be 2 adjacent keys sharing that address prefix.
15 digits ~= 88 bits
Chance to find 2 in a row: once in ~176 bits
Curve order: ~256 bit.