thumb|Kākāpō (Strigops habroptilus), typically weighing 3 kg and possibly one of the world's longest-living birds The birds of New Zealand evolved into an avifauna that included many endemic species
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 0x75f784e4b4b496718d28e467431831899abaec058d8789d4dae7fee373c682e1. Chain 2 (Bitcoin): anchored in block 953954 (2026-06-16T14:18:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24fe1464-fa19-4928-bb2c-ab458ebdbfd5.json and https://artists.proofprofile.net/proofs/artist/24fe1464-fa19-4928-bb2c-ab458ebdbfd5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).