Simple Proof

Simple Proof timestamps digital records with Bitcoin: a user submits the hash of a file or dataset, the hash is written into a Bitcoin transaction, and once confirmed the record has publicly verifiable evidence of when it existed and that it has not changed since. The original file never goes on-chain, only the hash, so large files and sensitive data can be handled.

The flow has three steps: the console fingerprints the file, the immutable proof service timestamps it through open protocols, and anyone can check the result with a verification link or by running open-source software themselves. Integrations with Amazon S3 and DocuSign let cloud files be registered at upload and e-signature workflows carry a time proof once signed. Beyond ordinary documents the service is applied to surveillance footage, court records and news material, proving that a piece of media existed at a given moment and has not been edited since.