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 0xcbb4a5de51488f38163032775f57ea68f8b3f88a89fc46f1a03c83cfad3d8fe8. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8773d3a-1814-4330-a749-3b58c80159d6.json and https://artists.proofprofile.net/proofs/artist/a8773d3a-1814-4330-a749-3b58c80159d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Reading Good Books (Trumpet Jazz)
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Breathtaking Background Music for Cozy Thunderstorms
Big Band with Tenor Sax - Background Music for Calming Fridays
Backdrop for Rejuvenating Aprils - Sublime Trumpet, Soprano Sax, Tenor Sax and Guitar
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Awesome Trumpet Bossa - Background for Rejuvenating Aprils
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