thumb|Josef Pasternack (before 1911) Josef Alexander Pasternack (7 July 1881 – 29 April 1940) was a conductor and composer in the first half of the 20th century. Biography thumb|Olive Kline performin
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 0xaf9f35fc786081e15440f19c0536a6bd16cfa0fa01e47f3139200390f73aea1b. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fbadf376-f235-4a70-b209-437d257c2bec.json and https://artists.proofprofile.net/proofs/artist/fbadf376-f235-4a70-b209-437d257c2bec.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Vocal Recital: Gigli, Beniamino - Toselli, E. / Crescenzo, V. De / Donaudy, S. (Archivio Della Romanza Da Salotto Italiana, Vol. 2) (1926-1947)
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 0xb7b42c5a98ad965c218991094faa8a9d31bce2a58b06a5c307f1036e182f1344. 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/USB8U1004758 — a six-check JSON result.
Enrico Caruso, Vol. 4 (Recordings 1914-1916)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d4d4f85e0ed0932c9a3ef8efcdce5826f928aadb14e1446c4d9d43b898d230. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DEPJ41100228 — a six-check JSON result.
Gli tre cicisbei ridicoli: Tre giorni son che Nina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ae28b4612ad6d6ddbd98ec36e4f68f5bfb532a9772e564faf93c32fb751756. 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/DEPJ41100229 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecfb030ba67af0fda439093d50cc7bf86ace5ec8e2447f5d6be238051b180f0. 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/DEPJ41100231 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3818edac47c08e734279bc94a92ef65905a9234774dd85ae22d822dbea35bfc. 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/DEPJ41100233 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120d31f61fa7fee1063e98986f326220c67f1295a81339e4c75787cd69b3061d. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/DEPJ41100243 — a six-check JSON result.
Caruso, Enrico: Complete Recordings, Vol. 12 (1902-1920)
Caruso, Enrico: Complete Recordings, Vol. 11 (1918-1919)
A vucchella "Arietta di Posillipo": 'A vucchella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090980222108e9597a64f0ba1eed70518669cb84a00dd08b6410d9c9cb787aa9. 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/HKI190336415 — a six-check JSON result.
Opera Arias (Baritone): Luca, Giuseppe De - Verdi, G. / Donizetti, G. / Rossini, G. / Mozart, W.A. (The Victor Recordings, Vol. 2) (1916-1927)
Roméo et Juliette: Je veux vivre dans ce rêve (Recorded 1917)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0aaf50d29e3d2edbd23b98b4a81ed58fb3195f18fd3e4663b1cb26bb8196c4. 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/GBAJU9000396 — a six-check JSON result.
La Traviata: Sempre libera (Recorded 1919)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb107917743acee484f8e0b541547b7a0dbbe9cfb86fd897b79ee9982e565c037. 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/GBAJU9000401 — a six-check JSON result.
Voi lo sapete, o mamma (Cavalleria rusticana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97d29c207e6a2967912d0e5dbc0168d6223c5a39673562c7dabf7925a1c2a0b. 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/GBAYC0802087 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69139176c31ebbfb0af90d229f9cfa22aa70d0f825fdbc36ca66cac9636445f. 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/GBAJU0600196 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0167d3b13ced3b6abef0057dff6a19f4bcc4af7709948c1381399ca125dc2f. 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/USB8U1026711 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e547b5b131b161935b3c8a801f0c7a07349d3303b9073c7c4f9e271a015b570. 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/USB8U1026712 — a six-check JSON result.
Enrico Caruso - The Complete Victor Recordings
Rigoletto (1904 Recording): Act I: Questa o quella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062bbadba32eaf92a0d4107aa03ecf6ec8013c864e0db5e9e580cb8185814634. 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/USBC10402442 — a six-check JSON result.
La Favorita: Act IV: Spirto gentil, ne' sogni miei (Romanza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70507634ad0b33e9c2a695d207eda63b4a03a3014152e017a4283352873fc5fa. 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/USBC10100263 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f4d22b3c300bd18ae3dedddc728c6dc05fc3559b60fde2657fb74cdd5a1c81. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/USBC10402469 — a six-check JSON result.
Rigoletto (1904 Recording): Act IV: La donna è mobile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321205b60881ca8a59d6e7940699cbccc1277583b96e4ac7d19137d6aa89b712. 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/USBC10402443 — a six-check JSON result.
La forza del destino: Act III: Solenne in quest'ora
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4373485818a5ab957b41cc6c15db99377521b5e0f175f7e903f0df01b62da0. 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/USBC10402458 — a six-check JSON result.
Rigoletto (1908 Recording): Act I: Questa o quella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b1360309e41b368a53a47277355e877d2d66134e5c2fb57ba194d08b8a2ebc. 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/USBC10300002 — a six-check JSON result.
L'elisir d'amore: Act II: Una furtiva lagrima ... Un solo instante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bdca5db9b293fc7acccb7ac7eb7fe746d3d5edf7aec06723b147ae9669ad5c. 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/USBC10402444 — a six-check JSON result.
Aida (1906 Recording): Act I: Celeste Aida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c4a002fdbd7d1e503c6243b8f2ab680025a0c7afe3f1f16f7c5c6f4c95a7ca. 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/USBC10402459 — a six-check JSON result.
Rigoletto (1908 Recording): Act III: La donna è mobile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61073852cd1414d2cdec81ece06d5b11b7b43ef2c8b2018aeb3b0cbc66bd0fdf. 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/USBC10100412 — a six-check JSON result.
Aida (1904 Recording): Act I: Celeste Aida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d5c190320054bf2592f355ba5af12c3e5f4400ec49d8b2f4fa014e48c57677. 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/USBC10402445 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28186dfe22c5c9d8b29324f826e7e32610dd7c8a08f449ae28f7d57d7cb250f2. 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/USBC10402460 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317cac10f86b6702eb9c59a187848d47cd10930230db8b3d15f41214046dc2e4. 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/USBC10402470 — a six-check JSON result.
Tosca (1904 Recording): Act III: E lucevan le stelle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86994537c440a86bcbbd75ee68f2b9cc3b5b885d3bd1ca5bc5c135bb2b539819. 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/USBC10402446 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd12ce9ee48d1a49b92ee7c6ca09f4a6bb039b8c3f49413b8f137c7f2f9f465. 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/USBC10400275 — a six-check JSON result.
Tosca (1904 Recording): Act I: Recondita armonia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b7120d22e82ac57f4e334bafc0fe5ecfe079504aa991662bf969cd4ce5d278. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USBC10402447 — a six-check JSON result.
L'Africaine: Act IV: Mi batte il cor...O paradiso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e25736a3cdbeac983ad2b7bba491413435916eba86a48e037c636aee3878d3. 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/USBC10100418 — a six-check JSON result.
Cavalleria rusticana (1904 Recording): O Lola (Siciliana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebdcd58291d5bc5587a8fdac0f57bc8686a2c86a28b39e3bbc1263dfdfc842d. 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/USBC10402448 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0c658fc8d4b98278ca7effc07da62df937d437312aa75637563363287fccc5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USBC10402472 — a six-check JSON result.
I Pagliacci (Remastered): Act I: Recitar! mentre preso dal delirio ... Vesti la giubba
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe25d3176122895a19301188203cc4be3378c1ef6f6d92a4a7c92c659cab6e2. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USBC10402449 — a six-check JSON result.
La Bohème: Act IV: O Mimì, tu più non torni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb65608c822c59e986d5caa1cb34a959dc01593a9b7d24973469cfe926ee47ac. 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/USBC10100194 — a six-check JSON result.
Tosca (1909 Recording): Act I: Recondita armonia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab813094f33559353d98f7c0493be0562b7d885eba84e4cd7103290cae7c8c8d. 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/USBC10402473 — a six-check JSON result.
Manon: Act II: Chiudo gli occhi - Il Sogno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeae2750091c353b72fbf0251db4144f5a5aec5cfdba0a8ac53ab5d72f2f701a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USBC10402450 — a six-check JSON result.
Andrea Chénier: Act I: Un dì all'azzurro spazio (Improvviso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cf8b76dcda552f45b7c13871694f190fd2b8fbe375b9631c8d7cff6c596144. 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/USBC10402462 — a six-check JSON result.
Tosca (1909 Recording): Act III: E lucevan le stelle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9dd76486b14f9ec73bcc6aa8d868dfea3c0cb362f7c7e096e0f267608cfd6d. 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/USBC10402474 — a six-check JSON result.
Don Pasquale: Act III: Com'è gentil (Serenata)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7469171471f5dda247911faaab8bc43cc23f2b6059e49bf2e6502dc2872d8a. 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/USBC10402451 — a six-check JSON result.
I Pagliacci: Act I: Recitar! mentre preso dal delirio... Vesti la giubba
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73942f2c13287107de9f2e8d429223a575e3416e1e7ea55444c653b93df02fc. 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/USBC10100415 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca60ae4f138d488668bb5c905fcd84c01512de04029e02b8943454805210270e. 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/USBC10400280 — a six-check JSON result.
Carmen (1905 Recording): Act II: Il fior che avevi a me tu dato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe627254772a1cf36619b7d853ee8cd1bd2e61ca2727da8ae1542ba2c34d20d4b. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USBC10402452 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8cd60cbe677b8734ce8725039f927a73df853396a59dec52aa99eea8930b5f. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/USBC10100192 — a six-check JSON result.
Gli Ugonotti (Les Huguenots) (Remastered): Act I: Ah, qual soave vision ... Bianca al par di neve
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La Gioconda (1905 Recording): Act II: Cielo e mar
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Cavalleria rusticana: Intanto amici ... Viva il vino (Brindisi)
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Don Sebastiano: Act II: Deserto in terra
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Lucia di Lammermoor: Act II: Chi mi frena in tal momento? (Sextet)
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Faust: Act III: Salut demeure chaste et pure
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Rigoletto (1908 Recording): Act IV: Bella figlia dell'amore (Quartet)
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Madama Butterfly: Act I: Un po' di vero c'è ... Oh quanti occhi fisi
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John McCormack: The Gramophone Company Ltd. & Victor Talking Machine Company Recordings
Singers of the Century: Tito Schipa in Spain and South America (1925-1934)
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Kreisler: Complete Recordings, Vol. 5 (1919-1924)
Apple Blossoms: Who Can Tell? (arr. for violin and orchestra)
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Kreisler: Complete Recordings, Vol. 4 (1916-1919)
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The McCormack Edition, Vol. 8: The Acoustic Recordings (1918-1920)
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Mccormack, John: Mccormack Edition, Vol. 7: The Acoustic Recordings (1916-1918)
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Ponselle, Rosa: American Recordings, Vol. 2 (1923-1929)
Come Back To Erin (Recordings 1910-1921)
Gigli, Beniamino: Gigli Edition, Vol. 4: Camden and New York Recordings (1926-1927)
Gigli, Beniamino: Gigli Edition, Vol. 2: Milan, Camden and New York Recordings (1919-1922)
Caruso, Enrico: Complete Recordings, Vol. 10 (1916-1917)
Powell, Maud: Complete Recordings, Vol. 3 (1904-1917)
Powell, Maud: Complete Recordings, Vol. 1 (1904-1917)
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Vocal Recital: Caruso, Enrico - Denza, L. / Trimarchi, R. / Zardo, R. / Arona, C. (Archivio Della Romanza Da Salotto Italiana, Vol. 1) (1902-1920)
Opera Arias (Tenor): Gigli, Beniamino - Donizetti, G. / Puccini, G. / Drigo, R. / Verdi, G. (Complete Collection of Opera Highlights, Vol. 2)
Les pecheurs de perles (The Pearl Fishers), Act I: Je crois entendre encore, cache sous les palmiers
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Opera Arias (Tenor): Gigli, Beniamino - Boito, A. / Puccini, G. / Ponchielli, A. / Mascagni, P. (Collection of Opera Highlights, Vol. 1) (1918-1923)
Vocal Recital: Talley, Marion (Soprano) – Strauss Ii, J. / Rossini, G. / Verdi, G. / Thomas, A. / Offenbach, J. / Donizetti, G. (1923-1938)
The Beniamino Gigli Collection, Vol. 7: Bizet, Massenet & Puccini (2014 Digital Remaster)
The Heifetz Collection - Vol. 1 (1917 - 1924); The Complete Acoustic Recordings
Nocturne, Op. 9, No. 2 in E-Flat Major - 1990 Remastered
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L'elisir d'amore: Act II: Una furtiva lagrima
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Schipa, Tito: Complete Victor Recordings (The), Vol. 1 (1922-1925)
Opera Arias (Contralto): Schumann-Heink, Ernestine - Mehrkens, A. / Arditi, L. / Schubert, F. / Wagner, R. / Meyerbeer, G. (1900-1935)
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War sconer als der schönste Tag (Recorded 1916)
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Be My Love (Brodzsky & Cahn) aus "The Toast of New Orleans"
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