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 0x199b02ab722d31ba5e37d04232166ef8cdb002a3af0af4fbf900593ada7fddea. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94bdd5c5-1a50-4c59-9f80-a0e9900adfa8.json and https://artists.proofprofile.net/proofs/artist/94bdd5c5-1a50-4c59-9f80-a0e9900adfa8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Relaxing Guitar Solo & Comping Jazz Songs
Bossa Nova & Latin Classic Jazz Backgrounds