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 0xd6154a9bac629f241dd70957e6cb2bc19b3f3b2a126567c681be2a3c7cf0d5d2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc8aa8c9-2baf-4563-a30f-ab8808b20307.json and https://artists.proofprofile.net/proofs/artist/dc8aa8c9-2baf-4563-a30f-ab8808b20307.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Pavarotti – The Opera Collection 2: Verdi: Rigoletto (Live in Rome, 1966)
Rigoletto: Overture (Preludio) - Live in Rome, 1966
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xcc242874579cf90b05387b6d3dcdba217371512bb2d6e8bca7cfbb224df6c701. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF072340001 — a six-check JSON result.
Rigoletto, Act I: E il sol dell'anima - Live in Rome, 1966
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23214a2dc87841d8eb47c48e1baa30513507590838a150be501833c3049df10c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF072340010 — a six-check JSON result.
Rigoletto, Act I: Che m'ami, deh, ripetimi - Live in Rome, 1966
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a027e59bdd1147e4490116249ac18a934097151a22e3584e4e641dd07caf87. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF072340011 — a six-check JSON result.
Rigoletto, Act III: La donna è mobile - Live in Rome, 1966
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa673f48401f531f00a18084ca70ca56ddc6f1ba182cbe2bd2e05f9d670897c8d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF072340025 — a six-check JSON result.
Rigoletto, Act III: Un dì, se ben rammentomi - Live in Rome, 1966
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc49f50cf005690e3c0a4739ca2f457c26c1f2a434eb1b46495bb3f430dc1468. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF072340026 — a six-check JSON result.
Giuseppe Verdi: La Traviata (Complete Recording)
Gluck: Orfeo ed Euridice (Recordings 1957)
Madama Butterfly Lib. Giacosa and Illica (1995 Digital Remaster): Quanto cielo! ... Ancora un passo or via
Renata Scotto, Carlo Bergonzi, Orchestra del Teatro dell’Opera di Roma & Sir John Barbirolli
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9663c718c6745539f53ea8f0741ec45cd4ce28651b8567f33191b1d62bfe63. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9500832 — a six-check JSON result.
Madama Butterfly Lib. Giacosa and Illica (1995 Digital Remaster): Un bel dì vedremo
Coro e Orchestra del Teatro dell'Opera, Roma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3d745e6c72d4199bb75153583972b440ff34a9700e7b0f5a4a6e78b4b7df59. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9500834 — a six-check JSON result.
Puccini: La Bohème, Act 1: "Sì. Mi chiamano Mimi" (Mimi, Rodolfo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cdbf15e81c14df92e7f6d8f046a5a2ac8b53fa24de53848ea8ab0926483a82. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0701101 — a six-check JSON result.
Puccini: La Bohème, Act 1: "O soave fanciulla, o dolce viso" (Rodolfo, Marcello, Mimi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72af0a110c45009dd306bd72e90fd5a38e6f623d3157b16d3e7687d74df9ca60. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0701103 — a six-check JSON result.
Puccini: La bohème, Act 1: "Che gelida manina" (Rodolfo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c4927d6d3fdc810b7fa25dc3640f9278a65443532538994f377d548e0193d4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9103774 — a six-check JSON result.
La Bohème, Act IV: O Mimì, tu più non torni (Rodolfo/Marcello)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f1b176fbfa40df17737fe92a274dec0d9cf643d138c6eace868b00f8e3d234. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9103796 — a six-check JSON result.
La Bohème, Act I: O soave fanciulla (Rodolfo/Marcello/Mimì)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa231c30e326d1c04de1638c7ce70bf806a7e0a262c1b62768db5347bc6daf32e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9103777 — a six-check JSON result.
Aida / Act 1: "Se quel guerrier io fossi!..Celeste Aida"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb6e045f466950c03b55e787815b19b12f996ad272f512ffdc5e1bcadd820f8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140303 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4f938bc515a8856c18552cca218961c4f2813540c167e59a310e449ccf4d43. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076112980 — a six-check JSON result.
Aida / Act 2: Gloria all'Egitto, ad Iside
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8926cae5a706c8e36cdac46a6e8f57eaa0ada3c2f485416fd40ac64259904bb. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140312 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0358d93242fd3a3f3ede3cd79aae34245ff248eabadfd44183eefeb37cc731c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140313 — a six-check JSON result.
Aida / Act 2: Vieni, o guerriero vindice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebb2938e51e6b71bf70ca304323dadd932871b935dcd3d4bba17e06abf81844. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140314 — a six-check JSON result.
Aida / Act 3: Qui Radames verrà!...O Patria mia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a5490f4ff7a41b0a6be714f58aa4c03d56eeda87f1c8ebfa9db7380c20a4ed. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076135020 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e43bd393b5ab3ac71247a2d507e1fb93db12760328847efdbb885e5795b0744. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140323 — a six-check JSON result.
Aida / Act 4: O terra, addio; addio valle di pianti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a647a78ce94776133cd506973c28ea6d3b98c7a8ba76dc243430eb074cc6931. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140333 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12425b8e12100c6f0dad50c1211b0943d6ceff389ad87e4148a0741008ee2e75. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140321 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3761c69490759d524fa909eb33d52d9ddb94e6949a152d4303ffdadb222e4f8b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140301 — a six-check JSON result.
Aida / Act 2: Chi mai fra gl'inni e i plausi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96f56ef82af16baa1cbef31669ab719ed8cc659e192c2b07d5b896fc88a4455. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140309 — a six-check JSON result.
Aida / Act 2: Fu la sorte dell'armi a'tuoi funesta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffdaf4940f57c5ca0dd35dc01623fbde74eb3690c24ec38218d50f6834abcf4. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140310 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab78e1ddd7a3ba426f73b00f86097cdfe458e22ccae998072d1ded2e0a28a17. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140322 — a six-check JSON result.
Aida / Act 1: Sì: corre voce che l'Etiope ardisca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e8e79b065eaa954b74e28810b7e8bdbccb744d30450a5df769eb9911a5c7f5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140302 — a six-check JSON result.
Aida / Act 2: Su! del Nilo al sacro lido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85859a7167280340d8a15e7cb3f487c915e9cfe5cb090fc999b50cf4a3dab4c9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140311 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb6e045f466950c03b55e787815b19b12f996ad272f512ffdc5e1bcadd820f8. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140303 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8926cae5a706c8e36cdac46a6e8f57eaa0ada3c2f485416fd40ac64259904bb. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140312 — a six-check JSON result.
Aida / Act 3: Pur ti riveggo, mia dolce Aida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0b3b852c4c1ad1bf9f3bd6a5a0853e2652587c27149001aaed6347787152cd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140324 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd592308b2f30a8752c5f8a4cb1e2323221edb30413d540494f6111887aea682a. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140304 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0358d93242fd3a3f3ede3cd79aae34245ff248eabadfd44183eefeb37cc731c. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140313 — a six-check JSON result.
Aida / Act 3: "Fuggiam gli ardori inospiti"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89343f1a6c147defb8b09f3b3490b0979e931d40dbc0fa457971e74064345d2e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140325 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc419bb10ea8782eb21e7ca1f1820583b8236e19fbd631344b7765fc5e11e69aa. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140305 — a six-check JSON result.
Aida / Act 3: "Tu...Amonasro!...tu!...il Re?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c37d782e000b667db1bcc414f5c394f097a8ad43b19f07b6100178998f529f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140326 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8522b518425e0ed908bed7fcabd663dea33ad177feb56050b6c07555bba4404f. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140306 — a six-check JSON result.
Aida / Act 2: Salvator della patria, io ti saluto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb3eb7c75a89b3435befe5f9596431c614f931a43c751a3bbfaaab78785d017. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140315 — a six-check JSON result.
Aida / Act 4: "L'aborrita rivale a me sfuggia"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d0e61240a62f8bf79488c75b503dee52e15796f7a78ba74e6eb29833b50901. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140327 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7792e135ea3a6eca33815bc319c0443757aa4e191d1418c1654ef14c901f15a6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140307 — a six-check JSON result.
Aida / Act 2: Che veggo!...Egli?...Mio padre!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45581c5587b45463166ca31d29275a102fddb67663fb9e99f3992f8b7a6065da. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140316 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad3752b02a6179c2fe1761dd5f1dafac45ff7916ee9e588a2161fda86ef0c3a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140328 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6e39fac1ec4fef2a6fd49230bbf5884b084a0107dd742b22d93a49d100f08a. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140308 — a six-check JSON result.
Aida / Act 2: Quest'assisa ch'io vesto vi dica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9b61a63450167e41cfbbdbe839ed1000e1ba456de5c5f4a49b3e69bf70ada9. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140317 — a six-check JSON result.
Aida / Act 4: Ohimè!...morir mi sento! Oh! chi lo salva?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1019f42831a0c67c761018c98d96d58f6010d6936dc85091f3b9ccdeece56b1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140329 — a six-check JSON result.
Aida / Act 2: "Ma tu, Re, tu signore possente"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189267ec50b91dc9df221146562d6d014364de94598cb52f8af550ab37ee0b55. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140318 — a six-check JSON result.
Aida / Act 4: Radamès! Radamès! Radamès!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe315aa40c9ea0e9943f79f6af118b77b28978b3dfcf41293d7f6fbcfe7582b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140330 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd8137d4ba70082793b36aa995a1c18791bc961aed50c9571f588d64b13e134. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140319 — a six-check JSON result.
Aida / Act 4: La fatal pietra sovra me si chiuse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98596447945ad8052682ab33e71c25c93adeb3271d791e6d6ccd47cc008d05d6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140331 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9abedefb79924ceecd12b12159c1834d1ca9d2ab7cae61737dc68928bc0729. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140320 — a six-check JSON result.
Aida / Act 4: Presago il core della tua condonna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d19a307f5e00a33e973aed74fee3896d6507632f276588052de27c59ac355f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140332 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a647a78ce94776133cd506973c28ea6d3b98c7a8ba76dc243430eb074cc6931. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076140333 — a six-check JSON result.
Madama Butterfly, Act II: Humming Chorus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5728ce99764c5989cea4d3e6154d43e9410cf997201cc25b2990ac9a39d23885. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600165 — a six-check JSON result.
Madama Butterfly (2002 Digital Remaster), Act 2, First Part: Un bel di vedremo (Butterfly)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dac9bfaea215d14a084909a3760978c23f42a8f546e175e75273e7a72906c04. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0201550 — a six-check JSON result.
Verdi: Il trovatore, Act 3 Scene 6: "Ah sì, ben mio, coll'essere … Di quella pira" (Manrico, Leonora, Ruiz, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a3c8ffe40a65d22265457b08c9a24ba06d77783c7aa60716a28458e9faee19. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9005165 — a six-check JSON result.
Rigoletto: Act I : Gualtier Malde … Caro nome (Gilda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d57487b350c438407c2fc4ca95aabf7ed29946652627a42bf1f548b6d69693. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101705 — a six-check JSON result.
Verdi: La traviata, Act 1: Brindisi. "Libiamo ne' lieti calici" (Coro, Alfredo, Violetta, Flora, Marchese, Gastone, Barone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceea57a1c81057bd8ff523bfd1023689d67e475d735fd2e62b3144afab0b8817. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9201500 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b078a815fd72ff6a4b171b03165bd73f878100b2efb62e0475f35cacf44a8cf. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101697 — a six-check JSON result.
Puccini: Madama Butterfly, Act 1: "Vogliatemi bene" (Love Duet) "Vieni, vieni" [Butterfly, Pinkerton]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bd6b112a28309f9b2454de93fb97aa18c24d9872f597644cb9988db010b061. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0203635 — a six-check JSON result.
Puccini: Turandot, Act 1: "Non piangere, Liù! … Ah! per l'ultima volta!" (Calaf, Liù, Timur, Ping, Pong, Pang, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b908b6fa3f74f08899bf7e1dfba8228bf1538f749b5e05a26011f3b8856289. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8805391 — a six-check JSON result.
Madama Butterfly, Act II Part 1: Un bel di vedremo (Butterfly)
Verdi: La traviata, Act 1: "Che è ciò?" (Coro, Alfredo, Violetta, Flora, Marchese, Gastone, Barone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d529c73d110511fbba204d84761ee3d94a3042548b3c1a3e44d6ad598a9050f. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9201501 — a six-check JSON result.
Verdi: La traviata, Act 1: "Si ridesta in ciel l'aurora" (Coro, Violetta, Flora, Marchese, Gastone, Barone, Alfredo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e846564204e6830deb6d735fc66178d79b8f88773b4d5217dc28fa1201b8c3. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9201504 — a six-check JSON result.
Rigoletto: Act I: Partite? Crudele! (Duca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1ab3d85d68a357dccf9b58edc8a705cb6ddf0b4d1b97160d95accfb483fb52. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101696 — a six-check JSON result.
Rigoletto: Act I: Ch'io gli parli (Monterone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2e4c7b2d017650ef39ea5cd2a60459bb57bbbfb85a7d35f1595938712df131. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101698 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2793af9a2511f0696f1b3a6dd94fa5f2690bc6de399c0c72275a7265c0bc9f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101709 — a six-check JSON result.
Rigoletto: Act II : Possente amor mi chiama (Duke)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb123d3bfacf3536bc8c1c125f35dcadde668a59c0ad1525fb29ef8761b0440. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101710 — a six-check JSON result.
Il Trovatore (1990 Digital Remaster), ACT 3 Scene 2: Di quella pira, l'orrendo foco (Manrico, Ruiz, Soldiers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8427800f0d1711b9093e49364cbc2b5ca433ae17c0bbcfe0601e9b4b29364ad7. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9001881 — a six-check JSON result.
Puccini: Turandot, Act 3: "Nessun dorma" (Calaf, Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554a28e935385e220a3a1219c90d427374e242234079ea640030da4a6c4b95ca. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8800934 — a six-check JSON result.