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 0x2b19df140ddd872296e6620c8eb70e38c2ec83b86ffc69ca0e58d3a890971fa7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38b44c9e-2e1a-45bb-a3e6-3dd2e6cd7b24.json and https://artists.proofprofile.net/proofs/artist/38b44c9e-2e1a-45bb-a3e6-3dd2e6cd7b24.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Man from Hyde Park (feat. Gregory Porter)
My One and Only Love (feat. Jane Monheit)