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 0x47e048c853d1434b06f54c1a961fb87af6fa895ad808bbdeec9434b2d3b8bf77. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd28f536-4587-4d01-b49c-e904624857e5.json and https://artists.proofprofile.net/proofs/artist/dd28f536-4587-4d01-b49c-e904624857e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Café Mornings: Jazz Ballads to Start Your Day
Jazzy Morning: Coffee Shop Jazz Collection
Coffee and Jazz: Easy Listening Jazz Café
Timeless Roast Melodies: Coffee Shop Music