Creator said these are sequential keys from the wallet. Errors are possible. It cannot be denied.
Nope. There is an exact math formula for making this puzzle with some script, errors = ZERO.
He used used a custom method like: "Type 1 Deterministic Wallet"
Masked with leading 000...0001 to set difficulty. There is no error here in arithemitic precision.
https://thebookofbitcoin.github.io/html/storage/deterministic_wallets.htmlEverything else is a conspiracy theory.