Satohash for counsel

Satohash issues Bitcoin-anchored proof of existence: a SHA-256 fingerprint computed on the client, then an OpenTimestamps receipt that calendars later commit into a Bitcoin transaction. The file never leaves the device.

The .ots proof is independently verifiable with ots-cli, opentimestamps.org, or any OTS library against public calendars or your own Bitcoin node — even if Satohash ceases to exist.

This is not legal advice. A stamp is evidence that a fingerprint existed at a time. It is not proof of identity, consent, authorship, truth, admissibility, or a notarial act.

Pending is not confirmed. Pending means submitted to calendars. Confirmed means a Bitcoin block includes the attestation.

Counsel one-pager · How Satohash works · Verify a proof