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 0xbea2905c8bc48fad66075cb36db351488e1bbb6a1561403af5ea618ee7c59306. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd5f708a-36e7-45f6-8af1-28815996e2ed.json and https://artists.proofprofile.net/proofs/artist/bd5f708a-36e7-45f6-8af1-28815996e2ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gentle Jazz Compositions for Background Listening
Slow and Calm Jazz Piano Collection for a Relaxing Meal
Jazz Piano Ambience for Fine Wine & Dining
Warm and Cozy Jazzy Atmosphere with Instrumental Piano Songs