Satoshi's Bitcoin source code as an NFT.
The original Bitcoin source code (bitcoin-0.1.0.rar) was published by Satoshi Nakamoto on 10/01/2009. The archive published by the author was embedded in the current picture using steganography.
Only the owner of this NFT will possess the cryptographic keys & instructions on how to extract Satoshi's archive from the current picture.
For the first time in history, this encryption technique was used to forever embed Bitcoin's original source code into the Ethereum blockchain.