1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xe13cdf79797ea39851ffa1557bf8c91df04496d8e030639e82f9477db95ae046. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/edffc9dd-3365-4f2f-9f5d-a7b7f2164a86.json and https://artists.proofprofile.net/proofs/artist/edffc9dd-3365-4f2f-9f5d-a7b7f2164a86.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).