The basilisk collection (also known as the basilisk file or basilisk.txt) is a collection of over 125 million partial hash inversions of the SHA-256 cryptographic hash function. Assuming state-of-the art methods were used to compute the inversions, the entries in the collection collectively represent a proof-of-work far exceeding the computational capacity of the human race.

This is a grand work of fiction.

The author has another fiction on the concept named "Clairvoyant Computing": https://suricrasia.online/unfiction/CSC218-Software-Precognance.pdf

A tool that solves Caesar Cipher automatically. It can solve simple substitution ciphers often found in newspapers.

Can two potentially dishonest players play a fair game of poker without using any cards (eg. via the mail, or via the telephone) and without using any mutually trusted intermediate?

<blockquote>starting point and ending point are</blockquote>