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 0xe3ebd55dd9fe9d518c44408245f2d58bab4a90e90a2d6858ca35754f6da46453. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e89105a0-a7e5-491f-8b7d-24f97b908485.json and https://artists.proofprofile.net/proofs/artist/e89105a0-a7e5-491f-8b7d-24f97b908485.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Trouble at the Cup (Black Randy & Metro Squad)