+ Teal as a tertiary color alt=Eurasian teal drake (male)|thumb|A male Eurasian teal, showing the iridescent blue-green stripe on the head alt=Eurasian teal drake (male)|thumb|As the color in the teal
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 0xaf7c92dd55f420add0b8d6fec56a5e42be5bfd1e67b93dad548629bc1830e012. Chain 2 (Bitcoin): anchored in block 954063 (2026-06-17T07:49:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45aafb3f-aee9-4c5b-94ed-2eaa5079ce87.json and https://artists.proofprofile.net/proofs/artist/45aafb3f-aee9-4c5b-94ed-2eaa5079ce87.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).