thumb|right|300px| Mauretanian cavalry under Lusius Quietus fighting in the Dacian Wars, from the Column of Trajan Mauri (from which derives the English term "Moors") was the Latin designation for the
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 0xed8cf62c789aea2650d8c3d6a809c6a1d94c2e53dfb270cd631c86c05f12375b. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc4e2d35-8d98-4cee-a668-6539fd884d96.json and https://artists.proofprofile.net/proofs/artist/dc4e2d35-8d98-4cee-a668-6539fd884d96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).