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 0x9487f3256bd3500f46b05c44caa70f9f6d8d4c4f221fc10876f9b2611057fb5d. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/402d5dd2-c6bc-4b42-b04b-910466638e36.json and https://artists.proofprofile.net/proofs/artist/402d5dd2-c6bc-4b42-b04b-910466638e36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gangster Chronicles: The Definitive Collection
Gangster Chronicle - Steve Mason Kronk Remix
Best of London Posse: Gangster Chronicle
Gangster Chronicle (Steve Mason Kronk Remix)