thumb|"Roy" Edward III, King of England. Bruges Garter Book. A viceroy () is an official who reigns over a polity in the name of and as the representative of the monarch of the territory. The term de
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 0xcc431beebb1a523933f9b9095afa985eb328c06c5690348d54d2a2fe6c827db9. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a5e627c-4c4e-4388-99e6-9bbf2bfcf86b.json and https://artists.proofprofile.net/proofs/artist/9a5e627c-4c4e-4388-99e6-9bbf2bfcf86b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).