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 0x97ac813d64a4d1cf8f0e4450147f400f385be835da047ab55c82b37d973a1152. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adb0c7f6-0cbf-410f-85ee-276d0cf08668.json and https://artists.proofprofile.net/proofs/artist/adb0c7f6-0cbf-410f-85ee-276d0cf08668.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Air Texture VIII Anthony Naples + DJ Python