Cesare Valletti (18 December 1922 – 13 May 2000) was an Italian operatic tenor, one of the leading tenore di grazia of the postwar era. Valletti was born in Rome, where he studied music. He also
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 0x40bd26773e22f02d62b76be9cd88cb9334ce8ce2ef6ef5f1f763800c7a8df33a. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/58b9bf54-f76c-422d-bfaf-2501645045ee.json and https://artists.proofprofile.net/proofs/artist/58b9bf54-f76c-422d-bfaf-2501645045ee.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Bellini: Norma, Act 1: "Casta diva" (Norma, Coro)
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 0x3546f839974315a3c191919ab26d9a97b1310fdd18875e979e128c5930a3fa02. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBAYC1401979 — a six-check JSON result.
Puccini: Tosca, Act 2: "Vissi d'arte" (Tosca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a2b1d01aea554055a9c28eefb824235352cf4a70068d3e1158dc49d526168e. 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/GBAYC1402627 — a six-check JSON result.
Gluck: Alceste, Wq. 44, Act 1: "Divinités du Styx" (Alceste)
Orchestre National Radiodiffusion Française
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9cc15bdbdb063a36b3d3b01c536073b8b3ef2c8162eec3abf9f4cb505e397d. 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/GBAYC1400547 — a six-check JSON result.
Bizet: Carmen, WD 31, Act 1: Habanera. "L'amour est un oiseau rebelle" (Carmen, Chœur)
Orchestre du Théâtre National de l'Opéra de Paris
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca9b625bff3811a8f5e8a25941924b99bf2f37cc7b2f59e2813f6ff60d45f7f. 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/GBAYC1402623 — a six-check JSON result.
Puccini: Madama Butterfly, Act 2: "Un bel dì vedremo" (Butterfly)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3506155e56cfa5ea1a19e5bc7ce778b49eabcb290bf56f7d66530f39a8039a55. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/GBAYC1400382 — a six-check JSON result.
Donizetti: Lucia di Lammermoor, Act 1: "Quando rapito in estasi" (Lucia, Alisa)
Orchestra del Maggio Musicale Fiorentino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073e9b76489c0ef73145522fb654f769c01f22852c06a44a6a7fc7b10cc5b370. 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/GBAYC1400112 — a six-check JSON result.
Verdi: La traviata, Act 1: "Sempre libera" (Violetta, Alfredo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f48f8866417a0be2f7cef7f423ac94e897c0c8c90063e21d9288324947650b. 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/GBAYC1402626 — a six-check JSON result.
Bellini: La sonnambula, Act 2: "Oh! Se una volta sola" (Amina, Rodolfo, Teresa, Elvino, Lisa, Alessio, Notaro) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3472ce21cfaa1ff1ec68f611f652665af8d15d2c9b9f707c70d1e1fddc901c67. 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/GBPFW1700153 — a six-check JSON result.
Puccini: Gianni Schicchi: "O mio babbino caro" (Lauretta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0475b7c86d692ab4e89318f3de9297b244b9f23e9836c689367cd237a4d18bd. 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/GBAYC1400387 — a six-check JSON result.
Gounod: Roméo et Juliette, Act 1: Valse. "Ah ! Je veux vivre dans ce rêve" (Juliette)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe89fce96cfff3df4eb16d6215cf7dbd97a7df1c9449730750c292557a193fd. 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/GBAYC1400553 — a six-check JSON result.
Catalani: La Wally, Act 1: "Ebben? Ne andrò lontana" (Wally)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49f8ad6a24f03ba2b0140f14650f7809fd53069c0e5f690c57d5635e7daf71b. 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/GBAYC1402625 — a six-check JSON result.
Giordano: Andrea Chénier, Act 3: "La mamma morta" (Maddalena)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc90c8e0831fe39128e04836907734c43c2cb9b911b23e35161c0987b1b3b7f. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/GBAYC1400393 — a six-check JSON result.
Charpentier: Louise, Act 3: "Depuis le jour où je me suis donnée" (Louise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3aeaff10328281c4cd8e6f319f33c07f74a64803e05d7ce92ee46c7fae3d9ba. 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/GBAYC1400556 — a six-check JSON result.
Verdi: La traviata, Act 1: "Ah fors'e lui" (Violetta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed692f11d7f825c36bd14d4fbdcfe465b210a5d66b8a8a372688498cacd4b6a. 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/GBAYC1402638 — a six-check JSON result.
Bizet: Carmen, Act 2: "Les tringles des sistres tintaient" (Carmen, Frasquita, Mercédès)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45eeff00b198b78474acbdfd5e4f595c96507ad288b1d88d8d29c5640c43b1c. 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/GBAYC1401110 — a six-check JSON result.
Donizetti: Lucia di Lammermoor, Act 1: "Regnava nel silenzio alta la notte e bruna" (Lucia, Alisa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18290676bc2316ad4bef497274c886bea37b9861b95a40fb5219f547f1c4da44. 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/GBAYC1400942 — a six-check JSON result.
Rossini: Il barbiere di Siviglia, Act 1: "Una voce poco fa" (Rosina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94167c220dcb471ed946d43cccb820b188f9cabd0b1c52cb92f9988943eefcd. 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/GBAYC1400500 — a six-check JSON result.
Bellini: La sonnambula, Act 2: "Ah! non credea mirarti" (Amina, Elvino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd525e5d7b97fb0df8ee7732c3b78f2726719a1da18657c40a7fdf2ba1d3b79. 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/GBAYC1450191 — a six-check JSON result.
Saint-Saëns: Samson et Dalila, Op. 47, Act 2: "Mon cœur s'ouvre à ta voix" (Dalila)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3d70db98326a16c6b111cdabcc2bee5ecd7eb6985237ed15eb925a53fc4c36. 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/GBAYC1402636 — a six-check JSON result.
Verdi: Otello, Act 4: "Ave Maria" (Desdemona)
Orchestre De La Société Des Concerts Du Conservatoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91ee00881113b01a2d70ff4e70dcc5a594949cb2dc9d497ff4d258cdec1d3c5. 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/GBAYC1402633 — a six-check JSON result.
Donizetti: L'élixir d'amour (Mono Version)
Tchaikovsky: Eugene Onegin, Op. 24, TH 5 (Sung in Italian)
Tchaikovsky: Eugene Onegin, Op. 24, TH 5 (Sung in Italian) [Recorded 1953]
Mozart: Don Giovanni, K. 527 (Recorded 1959)
Verdi: La traviata (Live at the Coven Garden, 20/06/1958)
Lucia di Lammermoor, Act II: Tu che a Dio spiegasti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd091759c621e14b83d6b914517ab65a631e5dee4858e48ecfd24aae81d5650. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QM6N21446093 — a six-check JSON result.
Mozart: Così fan tutte, K. 588 (Sung in English) [Live]
Donizetti: Don Pasquale (1952 Recording)
Rossini: L'italiana in Algeri: Sinfonia (Orchestra)
Coro e Orchestra del Teatro alla Scala, Milano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286db0d7a478575de87f02eb3058bc6ef4de25d4787230cf2f9cc91c372cbe14. 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/GBAYC9103814 — a six-check JSON result.
Rossini: L'italiana in Algeri, Act 1, Scene 1, Introduzione: Serenate il mesto ciglio (Coro/Elvira/Zulma)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f9ab6eb88b862f83821471d559f8ed20b24b242f98661c7130c06ad0b5df94. 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/GBAYC9103818 — a six-check JSON result.
Rossini: L'italiana in Algeri, Act 1, Scene 1, Introduzione: Su: corragio, o mia signora (Haly/Zulma/Elvira/Coro/Mustafà)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e0ac1f33a43b9a95e6a012edad786c6bb8dcd0566fecee4ab056c765720aef. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBAYC9103820 — a six-check JSON result.
Rossini: L'italiana in Algeri, Act 1, Scene 1: Cavatina: Languir per una bella (Lindoro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4a1cfe2f2190070f1b8efaa6f90abc6ed547c2548d2afbb2ec6a7617c44672. 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/GBAYC9103822 — a six-check JSON result.
Rossini: L'italiana in Algeri, Act 1, Scene 2: Coro: Quanta roba! (Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e8e49d94cb432d8e9d31f03558d65711856d5d62c34bade1ac4f0cb0486d0e. 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/GBAYC9103826 — a six-check JSON result.
Rossini: L'italiana in Algeri, Act 1, Scene 2: Cavatina: Cruda sorte! amor tiranno! (Isabella/Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad45c1d82991908223946db60c78a049d6df538ca3e100b45c65e72d8765fcd9. 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/GBAYC9103827 — a six-check JSON result.
Rossini: L'italiana in Algeri, Act 1, Scene 4, Finale: Nella testa ho un campanello (Tutti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3198dfc27641dede2f376b4cdd18e9a169bde477c188eb2e5db465707dcc0efa. 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/GBAYC9103838 — a six-check JSON result.
Massenet: Werther, extraits (Mono Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb33793628f3e8ad9cb87e3b8b3101d0e2dca99458107d4c02e7ce0d429393b. 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/USBC15700384 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541280e766bc753274ba2295c341d20861fd48abf3ed6dad5a98d3aa93f68e1c. 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/USBC15700176 — a six-check JSON result.
Madama Butterfly: Io so che alle sue pene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee4d87647d2651359d45b18b6eb407c8bbeca7f9040adc5d1a2800b3566dde5. 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/USBC15700389 — a six-check JSON result.
Verdi: La traviata, morceaux choisis (Mono Version)
Don Giovanni, K. 527, Act I: Dalla sua pace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3ece1ec8498a551e731c01f5bf994acfb2d37d42be29aea73334feafbff32a. 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/USA370622598 — a six-check JSON result.
Il mito dell'opera: Cesare Valletti (Recorded 1950-1963)
The Art Of The Song - New York Town Hall Town Hall Recitals 1959 & 1960
Favorite Songs from His Town Hall Recital, October 1960 (Live, Stereo Version)
Giovanni Battista Pergolesi: La Serva Padrona - Dominico Cimarosa: Il Matrimonio Segreto
Donizetti: L'élixir d'amour, extraits (Mono Version)
PUCCINI: MADAMA BUTTERFLY (Remastered 2024)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c03af29c38fe8f18e9f86a0c5122f6e9879e8e108bcec05bbd61e7a4408a518. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/ITCC51105055 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681b0b0f8e87e4af3bc93a4e67cfdb83d9421f8b04ab03a89bd79156fc73af44. 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/ITCC51105056 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe9bd41ecba170217ade16eb9c5703b126c887ce09ee2ae4ff4d6c62cb7d9c4. 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/ITCC51105057 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca209c645b2a693ef04a044325c30be1cae5898ead40dc1bcb67e5750eb56e1. 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/ITCC51105061 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce9a9f83f1a1d13afc51262cb239a73f20bf8c24cc0aae05fbf8d0b42dc2137. 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/ITCC51105067 — a six-check JSON result.