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 0x71bbfe778651e27b1c5fcbb2e81b86dc4b3d4e6341e08cb2563fa6e4aaebd450. 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/9cddd283-4dfb-4776-bcde-ce07ab0fcb79.json and https://artists.proofprofile.net/proofs/artist/9cddd283-4dfb-4776-bcde-ce07ab0fcb79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Once In The Life (Original Motion Picture Soundtrack) [Digitally Remastered]
Sounds of Summertime (Remix) (feat. Roscoe)
Hi Power Soldiers: Summertime in the Varrio