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 0xcfc62849bfcf1a8d99afd51d4cff2d1c3375416c315fa06692e746fefb233e34. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ed09a05-d5ee-46cd-9406-7605a65f560a.json and https://artists.proofprofile.net/proofs/artist/8ed09a05-d5ee-46cd-9406-7605a65f560a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Musica Para Leer (musica para estudiar, musica para concentrarse, musica relajante)
Musica para Leer Vol.2 (Study Music, Brain Power, Musique pour étude, Musik für das Studium, Konzentration, Concetration, Musica para Estudiar)