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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790beb1d90a6ef1b4961c793c90dc6e74b1f8a0a73e5481f3caf48f5e612684e. 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/95dc284e-8a5a-41a4-8717-eff110865d6a.json and https://artists.proofprofile.net/proofs/artist/95dc284e-8a5a-41a4-8717-eff110865d6a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Le royaume de Morphée - Musique pour dormir paisiblement (Méditer et se relaxer)
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Musique pour dormir: Bébés et enfants, S'endormir rapidement. Sons relaxants, Soirée calme
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