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 0x4a280bd6569363518b5809d629789fdfcdbd9a386f1674b7e209d5a9bb7d6742. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/988c6bb8-9e6e-4336-9614-fb38ca1ef624.json and https://artists.proofprofile.net/proofs/artist/988c6bb8-9e6e-4336-9614-fb38ca1ef624.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Latina y Tropical (Pepito Ros Collection)
Sad Sax for Sad Sacks: Instrumental Sad Songs on Saxophone for a Good Cry, Including Time After Time, Tears in Heaven, & Rainy Days and Mondays