1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44287951e9cfc35e8a998759d9ca627a26f97d2603d42885e905ab17dd71606f. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f69d562f-73ac-4695-92a1-901dee02e89e.json and https://artists.proofprofile.net/proofs/artist/f69d562f-73ac-4695-92a1-901dee02e89e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alejandro Corona Interpreta a Mario Ruiz Armengol: Romanza Amorosa
Danza Española Para Piano A Cuatro Manos
Mario Ruiz Armengol y Arturo Xavier González
Alejandro Corona Interpreta a Mario Ruiz Armengol
Serenata - Del Ballet "Los Millones D' Arlequin"
Largo - De la Sinfonía "Nuevo Mundo" Op 85
Andante Cantabile - Del el Quarteto Op. II
Intermezzo Sinfonico - De "Caballeria Rusticana"
El Piano y la Música de Mario Ruiz Armengol
Danzas cubanas: No. 3, Serenata Melancólica
Danzas cubanas: No. 1, Recordando a Papá
Danzas cubanas: No. 12, ¡Gracias a Dios!
Danzas cubanas: No. 11, ¡Pequeña, Alegre y Bonita!
Danzas Cubanas: No. 3. Serenata melancólica
Danzas Cubanas: No. 1. Recordando a Papá
Danzas Cubanas: No. 12. ¡Gracias a Dios!
Danzas Cubanas: No. 11. ¡Pequeña, alegre y bonita!
Mario Ruiz Armengol 〜マリオ ルイス アルメンゴール Danzas Cubanas 〜キューバ舞曲集
Te quiero dijiste (Magic is the Moonlight)
Song to the Evening Star, Some Enchanted Evening
Songs My Mother Taught Me / My Foolish Heart
Ternura (Transcribed for Piano Solo) - Live
Todo Lo Que Tu Eres - All The Things You Are