RoboDocHash Polygon
Document Notary dApp

This decentralized app holds a registry 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 0xd76A8EE2e61Df833380bCad14a94C5e8cA15aA4d

RoboDocHash uses Polygon MATIC to store document checksums.
RoboDocHash confirms when an author has generated a document, image any file.
It is a blockchain notary.

  • Timestamp your documents.
  • Prove document ownership
  • Verify document integrity
  • Maintain document secrecy
  • Document Verification is free
  • Document Hash Upload is free,
    transaction gas fee under 0.1 cent

    Robohash GitHub . BArobots NFTs