Virginia Zeani (born Virginia Zehan; 21 October 1925 – 20 March 2023) was a Romanian-born opera singer who sang leading soprano roles in the opera houses of Europe and North America. As a singer, sh
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 0x87893c003108e4046b083fab1a4ca42cfa965c5e3119ae5236f0a5eed11704aa. Chain 2 (Bitcoin): anchored in block 953976 (2026-06-16T16:55:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ba245c3-8f7b-4ae5-b755-2c5101e84140.json and https://artists.proofprofile.net/proofs/artist/2ba245c3-8f7b-4ae5-b755-2c5101e84140.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Maria di Rohan: Act II: Son leggiero, e ver, d'amore (Gondi)
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 0x948af315fa72106210fa1bf69136c2a4fbea1f74b5b0d054834dd979b498507f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1506424 — a six-check JSON result.
Pizzetti: Assassinio nella cattedrale (Murder in the Cathedral)
Madama Butterfly / Act 2: Un bel dì vedremo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43531704207e72a5e0f6d7cc09db4858246bc9e059da8004e4b0223d43642f2b. 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/GBF076610120 — a six-check JSON result.
La Bohème / Act 1: "Sì. Mi chiamano Mimì"
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La Fanciulla del West / Act 3: "Ch'ella mi creda libero e lontano"
Orchestra del Maggio Musicale Fiorentino
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Carmina Burana: I. O Fortuna (From “Jackass: The Movie”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25589d5fae87b08ec1920aa1e0f81d0e3b645b005f0fc71852a1ab8e13694d09. 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/US5541202121 — a six-check JSON result.
Mandoline Concerto in C Major, RV 425: I. Allegro (From “Casanova”)
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Il mito dell'opera: Manon Lescaut (Live)
Il mito dell'opera: Virginia Zeani, Vol. 4
Turandot: Act III: Tu, che di gel sei cinta
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Il Mito dell'Opera - Virginia Zeani (Live Recordings 1957-1969)
Boema, Donde lieta, Aria lui Mimi din actul III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398fad7785d10ddaaec26d37d73dbddd8c94b0f15b060779473a4555d2ba40c5. 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/ROB011668304 — a six-check JSON result.
GRANDI VOCI ANTONIETTA STELLA, VIRGINIA ZEANI Una collana dedicata con registrazioni originali Decca e Deutsche Grammophon rimasterizzate con le tecniche più moderne che ne garantiscono eccel
I Puritani / Act 2: "Qui la voce sua soave"
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The Four Seasons - Concerto No. 1 in E Major, Op. 8, RV 269 "Spring": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94044ddddc7d9d3e76222b1899dd4c89aa3f318a0bc5e925327e38f478ea213d. 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/US5541302506 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3fe4c5b820177c82b19b060546949e5898e41d0b6dcfb864de5b713935b006. 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/US5541302507 — a six-check JSON result.
La Traviata, Act I: Libiamo ne' lieti calici (Brindisi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3c942a23d7d810ea97d4fc2d07b073f7a893684f28208c4e489486f572e518. 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/US5541302508 — a six-check JSON result.
Cavalleria rusticana: Intermezzo Sinfonico
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024423c7ccdb42740bb69c595538a2c2e39870c19f8219dfeb1783e91be0484d. 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/US5541302510 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879e1360e97e82c5cddf2a9663023a74197b0397014f31309eb5a4b6b79a2d63. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US5541302511 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae6974b70d4642f97d15b051226d930d2e1af9cf09a0a732eca9600b11d7f76. 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/US5541302512 — a six-check JSON result.
String Quintet in E Major, Op. 11 No. 5, G. 275: III. Minuetto "The Celebrated Minuet"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08aa613fdf730319fe4d805c45119cbe48b7a6cb39f09e5cdefdaa5859d8d7da. 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/US5541302513 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33e1719185c74cc5a32dd4a08f1840e07cd40cba779ea6411b5e9b9a99729b9. 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/US5541302514 — a six-check JSON result.
Mandolin Concerto in C Major, RV 425: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22141eafa90ed34dd81b9a44c15b2c689db17abec49ff5ab5cc4a5e900cc6568. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/US5541302515 — a six-check JSON result.
Nabucco, Act III: Va pensiero (Chorus of the Hebrew Slaves)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848fe3b3311a11b6c6bc7144da6d091f59fa628c8d3b5690bb073961338f2705. 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/US5541302516 — a six-check JSON result.
The Four Seasons - Concerto No. 4 in F Minor, Op. 8, RV 297 "Winter": II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c161f0d1e6468d9779844e7f87eee2ae3cf5f0b3b0eb1837c0d556d1a423e7. 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/US5541302526 — a six-check JSON result.
A Midsummer Night's Dream, Op. 61, Act II: Intermezzo (From "A Midsummer Night's Sex Comedy")
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Impromptu No. 3 in G-Flat Major, D. 899 (From "Gattaca")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a8adbaca4b05d602f889426dda075ffd5aada0cb71efc261307c8197195466. 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/US5541202723 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749aa34b90922ca1d728a37b99f07f4576a929b7de8bb4b7aa6966b2f0608995. 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/GBF077230809 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed05998feefb3c9522c941a579c76729fcc823f52155d25fd63defa290f29288. 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/GBF076211310 — a six-check JSON result.
Die Zauberflote (The Magic Flute), K. 620, Act II: The Queen of the Night's Aria - "Der Hölle Rache Kocht in Meinem Herzen"
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Puccini: Les opéras - La discothèque idéale de Diapason, Vol. 10
Madama Butterfly / Act 2: Una nave da guerra...Scuoti quelle fronda
Orchestra dell'Accademia Nazionale di Santa Cecilia
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Il mito dell'opera: Nicola Martinucci, Vol. 2 (Live)
Glinka: Zhizn' za tsarya (A Life for the Tsar) (1954)
Il mito dell'opera: Gino Bechi (Recorded 1948-1959)
Il mito dell'opera: Flaviano Labo, Vol. III