also known as time-stamping or proof of existence, is one of the most obvious use
cases for blockchain technology beyond digital currencies. Document certification consists in saving a
tamper-proof timestamped fingerprint of a document (or binary file) on the blockchain. This basically serves
as proof that the document existed in a certain version at a certain time and can be used to prove integrity
of the file. That is, you can prove that a document has not been modified since its certification.
Use cases cover
- proof of existence
- proof of sender
- Registering private contracts
- Protecting copyright
- Sealing log files
and any other case where file integrity is important.
Each time You uploads a document, a transaction fee occurs, which is charged to your account.
- Your confidential document is NOT uploaded to blockchain, signing happen in your browser.
- Verify content, issuer & timestamp on the Ethereum blockchain for FREE