thumb|Zampieri (right) with José Carlos Xavier and Elisabete Matos in 2011, at S. Carlos Opera, Lisbon. Mara Zampieri (born 30 January 1951 in Padua)Warrack and West (1996); Kennedy and Bourne (2007)
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 0x84d658c493b7bbb7bc6df401613d76472ac9c60d7aa359ca8fb33a9180e199d2. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b41a3983-aa82-4387-bb7e-a3a297d78cb0.json and https://artists.proofprofile.net/proofs/artist/b41a3983-aa82-4387-bb7e-a3a297d78cb0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0xfb8ee5ea7cf8feb33d39bb3f0fa98853c702e65a7d198d43ff835d5edca8bb7e. 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/NLA508210001 — a six-check JSON result.
Macbeth / Act 1: Coro di Streghe: "Che faceste? dite su!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299bf779858bf65619f10b46ef8faedee06ad550196fffb3d11d2912c77d468a. Chain 2 (Bitcoin): anchored in block 960165 (2026-07-29T23:29:40Z), 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/NLA508210002 — a six-check JSON result.
Macbeth / Act 1: Scena e Duetto: "Giorno non vidi mai"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b2607719c8cbedea77ab1d4c03a414bc602d755738984a964a2baccb5df6bb. 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/NLA508210003 — a six-check JSON result.
Macbeth / Act 1: Coro di Streghe: "S'allontanarono!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc661be3548c189dc70fa4fc655c6779831ea0a8083e34ae50ae878febc398fe. 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/NLA508210004 — a six-check JSON result.
Macbeth / Act 1: Scena e Cavatina: "Nel dì della vittoria io le incontrai"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe9658a6363edf8e239bb0970a2e6fa633a4268759c177e859276dc65096f08. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/NLA508210005 — a six-check JSON result.
Macbeth / Act 1: Scena e Marcia: "Oh donna mia"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a196d34b42dee13114b7599f2f2f1e0bae6bce86e99c27d35b9bf8b596c205f. 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/NLA508210006 — a six-check JSON result.
Macbeth / Act 1: Gran Scena e Duetto: "Sappia la sposa mia"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8023ba94160adb4bc10c84f4e6953a219e27e20a6fb16816172620ce4d9dd4d8. 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/NLA508210007 — a six-check JSON result.
Macbeth / Act 1: Scena e Sestetto - Finale I: "Di destarlo per tempo il re m'impose"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29aa5efeb3a69153b092248a8fb21b09b2977c392b2c0fa80d79a8af6dd37826. 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/NLA508210008 — a six-check JSON result.
Macbeth / Act 2: Scena: "Perché mi sfuggi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34b6cc4443ad8b0abee2163a22a0ea8b0dd39fea8440c5006f2405764da6f46. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NLA508210009 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8163772b87e91fb01f6065ad3610dc45779182f0874d34f73b426212184466f1. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLA508210010 — a six-check JSON result.
Macbeth / Act 2: Coro di Sicari: "Chi v'impose unirvi a noi?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf724620b70be68fa91bc39d6607755384d503d4d8519d891b5c1d941373f7e73. 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/NLA508210011 — a six-check JSON result.
Macbeth / Act 2: Gran Scena: "Studia il passo, o mio figlio!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8997247866ca9fc2ba188c5f9c6967a6911c62c695926bb1759accab5d7ebb15. 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/NLA508210012 — a six-check JSON result.
Macbeth / Act 2: Finale II: "Salve o re"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482d535698d4661b6e1cec64b532a2b85d64099022b1a1eb2c158d6cf605f8ba. 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/NLA508210013 — a six-check JSON result.
Macbeth / Act 3: Coro d'Introduzione - Incantesimo: "Tre volte miagola la gatta in fregola"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2faa43f7780d04a358b8681be95c7b2b83e76d1fe2b353325a71a78bc6f94524. 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/NLA508210014 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0365243c270e22db026d249dbb069df4dcaf46efc631b322772da0b0b8b6c23f. 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/NLA508210015 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21523a79962cdac6821726efa42af6f921909adaf44080fd591ea2f2445931b0. 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/NLA508210016 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723cf0f19b5800b1d8de33625898fa94d6bd2f9d0cea872c3c5daa00656774ad. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLA508210017 — a six-check JSON result.
Macbeth / Act 3: Gran Scena della Apparizioni: "Finché appelli, silenti m'attendete!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1f23ef661fe47ed4933ad8671224faa917b97b9352f0a096709b5feccafca2. 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/NLA508210018 — a six-check JSON result.
Macbeth / Act 3: Coro e Ballabile: "Ondine e Silfidi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346c3f653940424fa4cc0a325b37de2d7fec47b6e98ac18c6282e9e64aa65a72. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/NLA508210019 — a six-check JSON result.
Macbeth / Act 3: Scena e Duetto - Finale III: "Ove son io?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25218158dae098632f70419c7a85cd3fa680d2ebfa19bba60be93b1bdf98872. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLA508210020 — a six-check JSON result.
Macbeth / Act 4: Coro di Profughi Scozzesi: "Patria oppressa"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bbd97125de569fa2602718cfa8b37e10d7232d0e7486c96aefd444aa7a0c36. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/NLA508210021 — a six-check JSON result.
Macbeth / Act 4: Aria: "O figli, o figli miei!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f958e4a8e8ad30e1c087e8d56c8d14fc57264a8d397c199f2348183d79c380. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/NLA508210022 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7278f91930b7039d0cfc655607a7bbd64ef88922ac40d0fb85655e9380a9851d. 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/NLA508210023 — a six-check JSON result.
Macbeth / Act 4: Gran Scena del Sonnambulismo: "Vegliammo invan due notti"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c84bfd3cc3dd7b32fa94f6349725cd1e781d17a439f72861c9033b8a16f4504. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLA508210024 — a six-check JSON result.
Macbeth / Act 4: Scena ed Aria: "Perfidi!" - "Pietà, rispetto, amore"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68ec380835957697e38c8ea0998d85f3120c4fe933f02030f4ec93b1a27c941. 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/NLA508210025 — a six-check JSON result.
Macbeth / Act 4: Scena e Battaglia: "Via le fronde"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735a07f58e6d4c29cbd7518419455f463ceafa3059a6331d58a75360cb873484. 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/NLA508210026 — a six-check JSON result.
Macbeth / Act 4: Inno di Vittoria - Finale: "Vittoria!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0e61474ec283aa164127d40c7ca7a83a9d7a2f207351045adee23d3599e67c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NLA508210027 — a six-check JSON result.
Sony Classical - Great Performances, 1903-1998
Danse sacrale (L'Elue) from The Rite of Spring
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc162cfcaf6a198711a345ba4e5b798567c080dc8b40b91b4904f2b5e1bc75c69. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USSM10406828 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7872f95653394ebe54c7244532577ce29d2730a422b43f34ecb756a71a9413bc. 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/USSM17600729 — a six-check JSON result.
The Well-Tempered Clavier, Book I: Prelude in C Major, BWV 846
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1dfcdc04d6ac0d4adad5fec87f2d3071743136a42f9230881de5040760f7a7. 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/USSM10406831 — a six-check JSON result.
Aria - Cantilena from Bachiana brasileira No. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7379cefca713e988bbc03bcc43f70b99b9289f1a7adc367e8cbf4d050a662917. 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/USSM14500104 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1bca06d0c32949af386f85b212729be45cacb84f752c9a5269e318f72ebdfa. 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/USSM18100535 — a six-check JSON result.
III. Allegro from Concerto in E-flat Major for Trumpet and Orchestra, H.VIIe, 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddb623d1a9ea8f080415893fa0cc0ba785af77a4b3bd4b4fb6753d5d8f8bad7. 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/USSM10406843 — a six-check JSON result.
Baroque and Blue from Suite for Flute and Jazz Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe6e10100ba587b0b81b382f85cfc4f40f2e0d60279932c2d84a94ddf900137. 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/USSM10406839 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e12caabd6df701419772796195a1602613391b748238a40181bbc892ce662b9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEB950360101 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac3b398e7f49a8d4827234149774506cf90dedaa5903734cd61379f5bf5f2f3. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USSM19100366 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0231d8219604f9e5c67ee6739eee8f48407d27beeeb0c4c5a0a072763f5f3e10. 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/USSM19100373 — a six-check JSON result.
La fanciulla del West: Ti voglio bene, Minnie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97881825609eaf466adb403ce27e0ffd85b56c01487cac6dded899b16f85866b. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USSM19100375 — a six-check JSON result.
La fanciulla del West: Minnie, dalla mia casa son partito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047648c770ea64d2dd4e2280e7c13e81e484a2fdf0f971c1e3b6d1eea41663e8. 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/USSM19100376 — a six-check JSON result.
La fanciulla del West: Signor Johnson, voi m'avete seccato!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9dcc2bd3cd68b138b418aeb021e78b42d75a603171ad297a5bebf172a28242e. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USSM19100380 — a six-check JSON result.