thumb|right|360px|Iris (on the left) with Zeus and Hera, east frieze of the Parthenon, British Museum. In ancient Greek religion, Hera (; ; in Ionic and Homeric Greek) is the goddess of marriage, wo
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd976b7d6eb0d53ac4cec3df7538f661c2c266191200eaa49da6d85872ae9bdc4. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04327247-9c6c-471d-b25c-268eafc3bd48.json and https://artists.proofprofile.net/proofs/artist/04327247-9c6c-471d-b25c-268eafc3bd48.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).