OriginStamp Timestamping API
Anchor any hash on Bitcoin and Ethereum and prove your data existed at a specific point in time. Independently, globally, and forever.
Easy to integrate
Create and verify tamper-proof timestamps with a single REST API call from your tool of choice. No blockchain expertise required.
Lightweight & scalable
Merkle-tree aggregation combines thousands of hashes into a single transaction, so you can timestamp anything from a few files to millions without overhead.
Independently verifiable
Every timestamp is anchored on public blockchains, so anyone can verify it at any time, even without OriginStamp.
TIP
New here? Start with the Guide for a hands-on walkthrough, or jump straight to the API Reference (opens new window). Questions? Reach out to our customer support.