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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f1fb211299a2312a36a7f9555dfcc0c75299f9b84a4aa4a0add5a5a202e821. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab4b5c93-6578-4c96-af96-1e18d299c504.json and https://artists.proofprofile.net/proofs/artist/ab4b5c93-6578-4c96-af96-1e18d299c504.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pioneers of Jazz, Vol. 13 (Mono Version)
I Ain't Gonna Give Nobody None Of This Jelly Roll
Lookie, Lookie, Lookie, Here Comes Cookie
Call Me Darling, Call Me Sweetheart, Call Me Dear