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 0xfb3ded9c737876dbcc63921d8e5f2e53778dd20ae423707053f0f3fcd8767075. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04669efd-0850-4315-8f39-5be50bdb5783.json and https://artists.proofprofile.net/proofs/artist/04669efd-0850-4315-8f39-5be50bdb5783.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El hombre de la piel de oso - Dramatizado
El Gato Con Botas (un Cuento de los Hermanos Grimm)
Cuento musical: Blancanieves y los siete enanitos
Cuento musical "El flautista de Hamelin"
Cuento musical "El sastrecillo valiente"
Historias mágicas de todo el mundo (Cuentos para Niños)
Cuentos escogidos de los Hermanos Grimm - Audiolibro