This decentralized app holds checksums of documents in a Solidity smart contract.
A sha256sum is stored on the blockchain, and then displayed as hex and as a robohash!
Contract at 0x7752d8a17D14841b9D1a1e2674E8493C2d682F49
RoboDocHash uses SmartBCH to store document checksums.
RoboDocHash confirms when an author has generated a document,
image or any file. It is a blockchain notary.
RoboHash GitHub . RoboDocHash API . BArobots NFTs