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 0x8708ba8b382c085ce6ac917991633726fd434bc8e6bb375f3bca585b0faa0df8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f987102-6914-43f4-a4ca-ae00526907e0.json and https://artists.proofprofile.net/proofs/artist/0f987102-6914-43f4-a4ca-ae00526907e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jam in the Van - Boogaloo Assassins (Live Session)
Be My Baby - Live in Los Angeles, CA 2017