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 0xc5f26e6eb9c78f6be8e81319885d93421bbf6907aac1a7de961b233af12d34fb. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f48194b-4cb5-4f7c-9fb1-41d3e41701f5.json and https://artists.proofprofile.net/proofs/artist/3f48194b-4cb5-4f7c-9fb1-41d3e41701f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Arias for Dramatic Soprano. Only Music (Instrumental Version)
Nabucco: "Anch'io dischiuso un giorno" - Instrumental Version
Nabucco: "Salgo già" - Instrumental Version
Il trovatore: "Tacea la notte placida" - Instrumental Version
Il trovatore: "D'amor sull'ali rosee" - Instrumental Version
Un ballo in maschera: "Morrò, ma prima in grazia" - Instrumental Version
Aida: "Ritorna vincitor!" - Instrumental Version
Aida: "O cieli azzurri" - Instrumental Version
La forza del destino: "Pace, mio Dio" - Instrumental Version
Tosca: "Vissi d'arte" - Instrumental Version
Madama Butterfly: "Tu, tu, piccolo Iddio" - Instrumental Version
Turandot: "In questa reggia" - Instrumental Version
Un ballo in maschera: "Ecco l'orrido campo"
Un ballo in maschera: "Ma dall'arido stelo divulsa"
Un ballo in maschera: "Morrò, ma prima in grazia"
Aida: "O cieli azzurri... O dolci aure native"
La forza del destino: "Pace, pace, mio Dio!"
Madama Butterfly: "Tu, tu, piccolo Iddio"
I promessi sposi: "Deh per pietà... O Santa Vergine"