1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x844b36665d25a7bbfa3112d9580257a78c7b3b4b6de2366d3ab15677c0d35230. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b8a28ef5-ee75-4fda-9ec5-bba01bedad8f.json and https://artists.proofprofile.net/proofs/artist/b8a28ef5-ee75-4fda-9ec5-bba01bedad8f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Soul Jazz Records Presents the Lloyd McNeill Quartet: Asha
Soul Jazz Records Presents The Lloyd McNeill Quartet: Washington Suite