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 0xcc5d9d7abed24492ad018e49444cd56c319b942bb528269b972409300c948b9d. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/132bee44-85da-44de-8258-3394e75a6524.json and https://artists.proofprofile.net/proofs/artist/132bee44-85da-44de-8258-3394e75a6524.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Compilation no. 2 pour les moins petits (20 chansons pour les enfants)
En route (21 chansons enfance et musique pour accompagner les vacances)
La "compile" des crèches (35 chansons, comptines et jeux de doigts. 60 mn)
Compilation de 0 à 3 ans (Pour les plus petits)