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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9f35fc786081e15440f19c0536a6bd16cfa0fa01e47f3139200390f73aea1b. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). 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, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vocal Recital: Gigli, Beniamino - Toselli, E. / Crescenzo, V. De / Donaudy, S. (Archivio Della Romanza Da Salotto Italiana, Vol. 2) (1926-1947)
Enrico Caruso, Vol. 4 (Recordings 1914-1916)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecfb030ba67af0fda439093d50cc7bf86ace5ec8e2447f5d6be238051b180f0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPJ41100231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3818edac47c08e734279bc94a92ef65905a9234774dd85ae22d822dbea35bfc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPJ41100233.
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPJ41100228.
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
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPJ41100229.
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 956351 (2026-07-02T11:38:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190336415.
Opera Arias (Baritone): Luca, Giuseppe De - Verdi, G. / Donizetti, G. / Rossini, G. / Mozart, W.A. (The Victor Recordings, Vol. 2) (1916-1927)
La Traviata: Sempre libera (Recorded 1919)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb107917743acee484f8e0b541547b7a0dbbe9cfb86fd897b79ee9982e565c037. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJU9000401.
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJU9000396.
Voi lo sapete, o mamma (Cavalleria rusticana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97d29c207e6a2967912d0e5dbc0168d6223c5a39673562c7dabf7925a1c2a0b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0802087.
Enrico Caruso - The Complete Victor Recordings
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10100263.
Rigoletto (1904 Recording): Act IV: La donna è mobile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321205b60881ca8a59d6e7940699cbccc1277583b96e4ac7d19137d6aa89b712. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10402443.
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 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10402458.
Rigoletto (1908 Recording): Act I: Questa o quella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b1360309e41b368a53a47277355e877d2d66134e5c2fb57ba194d08b8a2ebc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10300002.
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10402444.
Tosca (1904 Recording): Act III: E lucevan le stelle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86994537c440a86bcbbd75ee68f2b9cc3b5b885d3bd1ca5bc5c135bb2b539819. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10402446.
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10402447.
Cavalleria rusticana (1904 Recording): O Lola (Siciliana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebdcd58291d5bc5587a8fdac0f57bc8686a2c86a28b39e3bbc1263dfdfc842d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10402448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0c658fc8d4b98278ca7effc07da62df937d437312aa75637563363287fccc5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10402472.
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 (2026-07-21T21:39:45Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10402449.
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 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10402462.
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10402451.
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 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10100415.
Gli Ugonotti (Les Huguenots) (Remastered): Act I: Ah, qual soave vision ... Bianca al par di neve
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92573ead827a3350d6008e2f8e8ba56445b46e6d39b3c3d8759a18090f9ac7e6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10402453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1156eb90ff63aca8e277d5bb93d82693c521e1075cce469d2f62bfc454372f22. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10402476.
Cavalleria rusticana: Intanto amici ... Viva il vino (Brindisi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f87457bc67af2894aebfc39b1887b552d5652823ee92a783441ac7508e73e9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10100196.
Don Sebastiano: Act II: Deserto in terra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf507be2396e835dac7c8f4138722d6e868a444567a6aabfa740afd6f26fe5a9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10402465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6088385b2164a82690dfc46e2da96f815fdf16fe555659c0cd5f617f720926e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10301449.
Madama Butterfly: Act I: Un po' di vero c'è ... Oh quanti occhi fisi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dfa4fb7d6b6d33829a6561485fbc8947acfd37915491d4817bfd5373587713. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10100201.
John McCormack: The Gramophone Company Ltd. & Victor Talking Machine Company Recordings
Singers of the Century: Tito Schipa in Spain and South America (1925-1934)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77e4a74e7fc557d26bdf5a116270b7cffcff15a2924ae46d39dff91b60e927b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL111200608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f405e07424a7bd4678632ec6c75c41c0b11284dd5137002da3b2670ef6d333a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL111200610.
Kreisler: Complete Recordings, Vol. 5 (1919-1924)
Apple Blossoms: Who Can Tell? (arr. for violin and orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50194bf9af0e062c7ea1a00d7d1aaf3a54b9196f2ab1792dea4ee4f2361752f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191222605.
Kreisler: Complete Recordings, Vol. 4 (1916-1919)
The McCormack Edition, Vol. 8: The Acoustic Recordings (1918-1920)
Mccormack, John: Mccormack Edition, Vol. 7: The Acoustic Recordings (1916-1918)
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)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdb20463aa80d4e98ff6567281896f641d5904839855fb6dab816dd5b4c11b2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190105816.
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)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa05fdc1b9f38d29cc7903f7da94013f76bcad885f44e18a1336fcc5bc5c1fae. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10300153.
L'elisir d'amore: Act II: Una furtiva lagrima
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d18402edc6b46af8aa4b7342cfb6a2d80019ec9a524332f2e9bde2fb5b8f36b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10100266.
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)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89864cf96e309ca1f03a4bd1a17c3570fc7c0d99adff55b5d48327004944f5ef. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0855339.
Be My Love (Brodzsky & Cahn) aus "The Toast of New Orleans"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5991b68ecc8cde4c41ac16761c04770637cc22bdf3cf8776dfa9ce3d483d2cf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC15000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd5fae9374553598c261ceaffbb158b80717029d944b8c078cc592066863546. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:02:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10000846.