thumb|270px|Ölüdeniz Beach in Fethiye thumb|270px|Castle of Bodrum, ancient Halicarnassus, the city of Herodotus and the home of the Mausoleum of Maussollos, one of the Seven Wonders of the Ancient 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 0xb1d66fd85c1df2980d7d91270d0bebd1af4d6ff10c08ab754dafb9fdb21d7ff5. 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/106e821b-1358-4531-a107-d105fe4ce0b2.json and https://artists.proofprofile.net/proofs/artist/106e821b-1358-4531-a107-d105fe4ce0b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).