01 · CONTENT
Hash the version
A SHA-256 hash is a compact fingerprint of the exact text or file. Change the content and the fingerprint changes.
Independent verification · Give A Bit suite
Know what the proof actually says.
A SherpaCarta stamp links a specific document version to a cryptographic hash. Satohash.io can anchor that hash through Bitcoin. Anyone can inspect the proof; no account or trust in this page is required.
02 · ANCHOR
Stamp through Satohash
Satohash records the hash and submits timestamp evidence. The first result may be pending while Bitcoin confirmation is processed.
03 · CHECK
Verify independently
Open the proof, compare the hash, inspect its status, and use the downloadable evidence or external links where available.
Local browser tool
Check a SHA-256 hash
Paste the exact document text you received. Hashing happens in your browser; this tool does not upload the text.
Proof lifecycle
Track a Satohash proof
Enter a public stamp ID to refresh its status. This requests only public proof metadata; it does not expose or upload your document.
A quick checklist
Before you rely on a proof
- Confirm the document title and version match the material you received.
- Compare the complete SHA-256 hash, not only a shortened display.
- Check whether Satohash reports confirmed or pending.
- Keep the proof URL and downloaded evidence with the document.
- Remember: integrity and timestamp evidence are not the same as legal validity.
Open the machine-readable release manifest → · Support and contact →
Recovery
If your proof is missing
If a proof link is expired, unavailable, or still pending, keep the original document, its complete hash, and any receipt ID. Recalculate the hash locally, check the live Satohash page, and contact support without sending private keys or identity documents.