1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xf5c383b85f0bb4517c5e660b49a664ebce4b8a9565e014f59b86ff516752be2f. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1c570d0-76f1-4122-8b7a-e4d7efe1f4a1.json and https://artists.proofprofile.net/proofs/artist/d1c570d0-76f1-4122-8b7a-e4d7efe1f4a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
KRISTEN (Original Motion Picture Soundtrack)
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Het Verhoor (Original Motion Picture Soundtrack)
De Club Van Vijf (Original Motion Picture Soundtrack)
MUSIC SCULPTOR, Vol. 139: Sleep Stories & Lullabies