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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21199ddab78f5ab55f0a4e3c44eb799bda36a9f106917df7d5ca58722d69354c. 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/844b8d67-173f-4133-8d11-88751fadea88.json and https://artists.proofprofile.net/proofs/artist/844b8d67-173f-4133-8d11-88751fadea88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Un ballo in maschera, Act I: Preludio (Live)
Un ballo in maschera, Act II: Teco io sto (Live)
Un ballo in maschera, Act I Scene 1: Posa in pace (Live)
Un ballo in maschera, Act II: Ahimè! S'appressa alcun! (Live)
Un ballo in maschera, Act I Scene 1: Amici miei, soldati (Live)
Un ballo in maschera, Act II: Seguitemi (Live)
Un ballo in maschera, Act I Scene 1: Il cenno mio di lá con essi attendi (Live)
Un ballo in maschera, Act III Scene 1: A tal colpa è nulla il pianto (Live)
Un ballo in maschera, Act I Scene 1: Alla vita che t'arride (Live)
Un ballo in maschera, Act III Scene 1: Morrò, ma prima in grazia (Live)
Un ballo in maschera, Act I Scene 1: Il primo giudice (Live)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8e86994826045085280718cd7d4528f9765e33be444674b69bfcc2c79dcaac. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB951998033.
Un ballo in maschera, Act III Scene 1: Alzati, la tuo figlio (Live)
Un ballo in maschera, Act I Scene 2: Zitti, l'incanto non dèssi turbare (Live)
Un ballo in maschera, Act III Scene 1: Siam soli. Udite (Live)
Un ballo in maschera, Act I Scene 2: Arrivo il primo! (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe497e371aa539a0a24f420fcd6e8831f3ba6bfa1486de838afb58221f619234d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB951998035.
Un ballo in maschera, Act III Scene 1: Il messaggio entri (Live)
Un ballo in maschera, Act I Scene 2: Su, fatemi largo (Live)
Un ballo in maschera, Act III Scene 2: Forse la soglia attinse (Live)
Un ballo in maschera, Act I Scene 2: Che v'agita così? (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec105e3d2cd03817d5542e3465d8df194dc728c6da34a901b5114031c3ddafb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB951998037.
Un ballo in maschera, Act III Scene 2: Ah! Dessa è là (Live)
Un ballo in maschera, Act I Scene 2: Su, profetessa (Live)
Un ballo in maschera, Act III Scene 3: Ah! Perché qui! Fuggite (Live)
Un ballo in maschera, Act I Scene 2: Chi voi siate (Live)
Un ballo in maschera, Act III Scene 3: Ella è pura (Live)
Un ballo in maschera, Act I Scene 2: Finisici il vaticinio (Live)
Un ballo in maschera, Act II: Preludio (Live)
Un ballo in maschera, Act II: Ecco l'orrido campo (Live)