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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdedf3441950341dadd8e23435ce3df720ed6cc9f066f30e6b3df95f9e861d7. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e51934c-bdb7-49b4-8226-b349e8f7e74b.json and https://artists.proofprofile.net/proofs/artist/1e51934c-bdb7-49b4-8226-b349e8f7e74b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Until We Meet Again (Au Revoir Et A Bientot)