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 0x85a380489273f2f82079f9ea841c33cce3186c60831cdaa71a95ab2538143268. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cdd5b20a-9b4e-4bc7-b6e4-b089df8e76bf.json and https://artists.proofprofile.net/proofs/artist/cdd5b20a-9b4e-4bc7-b6e4-b089df8e76bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Runnin' on Fumes: the Gearhead Magazine Singles Compilation