Luis de Pablo Costales (28 January 1930 – 10 October 2021) was a Spanish composer belonging to the generation that Cristóbal Halffter named the Generación del 51. Mostly self-taught as a composer and
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 0x7d1dc734dbfe8cc140245abb1c50780441dd3a9c1c9fe1ac18f13504c6cf6216. 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/994f63d3-fcfe-459d-964d-f02984e74342.json and https://artists.proofprofile.net/proofs/artist/994f63d3-fcfe-459d-964d-f02984e74342.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pablo: Metáforas, Libro de Imágenes & Segunda Lectura
Luis de Pablo: Portrait imaginé & Com un epíleg
Pablo: Paraiso Y 3 Danzas Macabras / Segunda Lectura / Razon Dormida
Luis de Pablo: Fiesta I, Vielleicht & Fiesta II
Luis de Pablo: Amicitia & Other Works (Live)