Teresa Berganza Vargas OAXS (16 March 1933 – 13 May 2022) was a Spanish mezzo-soprano. She is most closely associated with roles such as Rossini's Rosina and La Cenerentola, and later Bizet's Carmen,
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 0xc5da5a64925c4afada2cbc023abd695bbbfac54aaeeaaf2a9e7630a7445e7414. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70775f92-d6ad-497e-9a6c-23c137049ed8.json and https://artists.proofprofile.net/proofs/artist/70775f92-d6ad-497e-9a6c-23c137049ed8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Manuel de Falla: Noches en los jardines de España, El sombrero de tres picos & La vida breve (interludio y danza No. 1)
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 0xbc3a14e2a1eccf595abb1ea28a1202844442deda802ab91b99d5bbbdc1cf7c8d. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/ES5701800629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06fb044fa4676dfb4ac57567484edcdadd493dbd67107856f5de6c5c6e231b94. 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/ES5701800631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60da27babb9ce3f1f88ae24e76c25ebcf0fcd8d7b29b15cd419ef0d0124100bc. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5701800633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a87cbe5c63ab4135fdcac990655c2135b18937bb702cd9c7939b3351578c04b. 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/ES5701800636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527bf2518d75649d089f1d1d44a3dadd1976c7298a6a5f01e5971ef8adb044bc. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/ES5701800637.
Orlando, HWV 31 / Act 2: Vaghe pupille, non piangete, no
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Semele HWV 58 / Act 2: "Hence, Iris, hence away"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bdeaeb8ec92587977e187f43691072cee8d76bcb5ee389529217cbc4752416. 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/GBF076311310.
Giulio Cesare, HWV 17 / Act 3: "Piangerò la sorte mia"
Orchestra of the Royal Opera House, Covent Garden
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Giulio Cesare / Act 3: Da tempeste il legno infranto
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Il Barbiere di Siviglia - Berganza-Bruscantini-Bartoletti - Teatro Colón 1969 (Live)
Mozart: Le nozze di Figaro, K. 492, Act 2: "Voi che sapete" (Cherubino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4893169981a43d45391548a9b6539099a90ea045260d6a3232e59527334b874b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9000587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8529d2fe111106324be4f4db578816dd7201ea3db82f01315ebf92165c8bb68f. 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/FRZ118100950.
Ravel: Chants populaires, M. A 17: No. 1, Chanson espagnole
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Ravel: Histoires naturelles, M. 50: No. 1, Le paon
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Ravel: Histoires naturelles, M. 50: No. 2, Le grillon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28865c4fe3b18c9841ed343d323dd424842704f7455201a8cca0148bb56e5abc. 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/FRZ118101000.
Ravel: 5 Mélodies populaires grecques: No. 2, Là-bas, vers l'église, M. A 10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e00df6070735bfca906f301ced83abcf441a01f6dce01fcbfc3fd6f9f6d0cc. 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/FRZ118301030.
Ravel: Ballade de la reine morte d'aimer, M. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4690a9a61d6625b15b0d8889089448f6543b863743c075b1b696477a80e84d1a. 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/FRZ118301230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea0e34c6df0fe502c03c335e40bfc945c8c16191943a27b6060d3f05267662b. 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/FRZ118101090.
Ravel: 2 Mélodies hébraïques, M. A 22: No. 1, Kaddish
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Ravel: 3 Poèmes de Stéphane Mallarmé, M. 64: No. 2, Placet futile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea452d918e0190de20046d3f65ab3a69408eb7de22e8a9c56f81d8081b37bd1. 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/FRZ118301270.
Mozart: Le nozze di Figaro, K. 492 (Remastered)
Mozart: Le nozze di Figaro, K. 492: Sinfonia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26c23fb955d41ca8b4201169685b07c27f4edbac0605ec077c18d8b291baa8d. 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/GBAYC2300673.
Una voce poco fa - A Portrait of Teresa Berganza
Il barbiere di Siviglia / Act 1: "Una voce poco fa"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54ab05c133ef13c2d1d6100df694b64878ecf00472fbeb424104858b917ff64. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075810590.
Così fan tutte, K.588 / Act 1: "Temerari! Sortite!...Come scoglio!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71794602a27c304aa6dddcc43d0af586d67cb885eda86d86b05b0bae22c3f11c. 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/GBF076211061.
Orfeo ed Euridice, Wq. 30 / Act III: "Che farò senza Euridice?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0af32736089d2ffa52fb9d59c589e1de1ebd386cf491190be0cd9b6a24e17a7. 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/GBF076010210.
Mozart: Così fan tutte, K. 588 (Recorded 1957)
Les grandes mezzo-sopranos de la musique classique : Teresa Berganza, Vol. 1 (Airs et mélodies du 18ème siècle)
El Barbero De Sevilla: "Acto I: Una Voce Poco Fa" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f821156eea21a21ea53cc948f099c96c0c678427717c7ecbf9d069b66d11397. 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/ES5271000301.
La Italiana En Argelia: "Acto I: Cruda Sorte! Amor" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e216b1c408bc87f9e4685d2a1fd733cd649e41905feeffbb49fe2036d415f7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5271000302.
La Italiana En Argelia: "Acto II: Per Lui Che Adoro" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ee298ea22fd7fa17f46e0f9f114a424c6cb8e5e494c6dabf701670d97bcdc6. 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/ES5271000303.
La Italiana En Argelia: "Acto II: Amici in Ogni Evento... Pensa Alla Patria" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac631fdfbae823447a90850f962130f471b7858ac5dad84ca1cc678f5ff5733c. 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/ES5271000304.
Stabat Mater: "Fac Ut Portem" - Remastered
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Carmen, WD 31, Act I: Habanera. L'amour est un oiseau rebelle
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Se Florindo è fedele (from "La donna ancora è fedele")
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Offenbach: La Périchole, Act 1: Chœur. "C'est lui ! C'est notre vice-roi" - Couplets de l'incognito. "Sans en souffler mot à personne" (Chœur, Don Andrès)
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Offenbach: La Périchole, Act 1: Complainte de l'Espagnol et de la jeune Indienne. "Le conquérant dit à la jeune Indienne" (La Périchole, Piquillo)
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Offenbach: La Périchole, Act 2: Cancan-couplets. "On vante partout son sourire" (Manuelita, Frasquinella, Piquillo, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351b800a78516fe4b425c473b933c06c7e37084b7dd198b7a5151cd02940e440. 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/FRZ118100770.
Offenbach: La Périchole, Act 2: Chœur des courtisans. "Quel marché de bassesse !" (Chœur, Piquillo, Panatellas, Don Pedro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba46a6d55d90421059a3299ee42f3259d6a1e66f74ce7c38f5128dc392988a2. 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/FRZ118100780.
Offenbach: La Périchole, Act 3: Trio. "Je suis le joli geôlier" - Dialogue. "Savez-vous ce que c'est que ça ?" (Don Andrès, Piquillo, La Périchole)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd866af6060a16c91f04bc4e0eb1b9dcfaacac4ca8868bbc982c380f7b29769. 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/FRZ118100870.
Offenbach: La Périchole, Act 3: Trio. "Roi pas plus haut qu'une botte !" (Piquillo, Don Andrès, La Périchole)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad4f0e910013e6ed7705aef9aec101bcf6b5d94287763460d8947a74f7d7a2b. 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/FRZ118100880.
Offenbach: La Périchole, Act 3: Dialogue. "Tais-toi !" (La Périchole, Piquillo, Le Vieux Prisonnier)
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Offenbach: La Périchole, Act 3: Dialogue. "Que se passe-t-il donc ?" (Mastrilla, Berginella, Guadalena, Piquillo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbef7c8c717a5c6023206b35f8c95af9335fbe635718a8cbae239a7e93a88bd8. 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/FRZ118100910.
Festival Manuel de Falla, Orchestre National de la RTF - A. Argenta (dir)
Il barbiere di Siviglia: "Una voce poco fa"
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Trece canciones espanolas antiguas: Anda, jaleo
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Se tu m'ami, se sospiri (Arr. by Alessandro Parisotti)
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Abril, Falla & Weber: Works (Remastered 2024) [Live]
Falla: El Amor Brujo, El Sombrero de Tres Picos by Ernest Ansermet (Remastered 2023, Geneva 1955)
Falla: Le Tricorne: Bizet: L'arlesienne Suite
Singers of the Century: Teresa Berganza – Aria and Song Recital (2019 Remaster)
Paride ed Elena, Wq. 39: O del mio dolce ardor
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Les grandes mezzo-sopranos de la musique classique : Teresa Berganza, Vol. 2 (Folklore basque et espagnol)
Un concierto de "Género Chico" - Teresa Berganza
El Barberillo de Lavapies (Canción de Paloma)
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Manuel de Falla: El Sombrero de Tres Picos [The Three Cornered Hat] (1961)
La tempranica: La tarantula e un bicho mu malo, "Zapateado"
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Teresa Berganza con Felix Lavilla al Piano. 8 Canciones Españolas y 7 Canciones Italianas
Teresa Berganza: An Evening of Song (Schwetzinger Festspiele Edition, 1985)
Vivaldi: Magnificat in G Minor, RV 611: XI. Gloria
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Le Nozze di Figaro K492 (1990 Digital Remaster), ACT 2: Voi che sapete (Cherubino)
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Magnificat in G Minor, RV. 611: Magnificat
The History of Classical Music: The Best of the Baroque Period
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Che faro (What is life?) (Orfeo ed Euridice)
Best of Opera - Die 50 größten Opern-Arien
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The Most Relaxing Vivaldi Album In The World... Ever!
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