thumb|Giacinto Prandelli Giacinto Prandelli (8 February 1914 – 14 June 2010) was an Italian operatic tenor, particularly associated with the Italian and French repertoires. Life and career thumb|Gia
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 0x25a9e4985bfb0ac23201d8ef9af859093bd08e6ba827ac1e67b03b4223e94375. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de586de0-6b1b-492c-bf65-075ce53eb55c.json and https://artists.proofprofile.net/proofs/artist/de586de0-6b1b-492c-bf65-075ce53eb55c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Donizetti: Lucia di Lammermoor (Live Recordings 1957)
Holzbauer: Günther von Schwarzburg (Recorded 1960)
Il mito dell'oprera: Lina Pagliughi (1928-1954)
Il mito dell'opera: Giacinto Prandelli (Recorded 1949-1956)
Mozart: Requiem in D Minor, K. 626 (Remastered 2020)
The Best Opera Pieces By Renata Tebaldi (Tosca, La Boheme, Madame Butterfly, Faust and Many More)
Puccini: Il trittico (Il tabarro; Suor Angelica; Gianni Schicchi)
Puccini: Gianni Schicchi: "Povero Buoso!" (Rinuccio, Zita, Gherardo, Nella, Betto, Simone, Marco, La Ciesca, Gherardino)
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 0x032bfc87485352661ec242defca5217e01b88259475c572f8f732c9705ec22d4. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801304.
Puccini: Il tabarro: "O Michele? Michele?" (Giorgetta, Michele, Chorus of Stevedores)
Renata Scotto, Carlo Bergonzi, Orchestra del Teatro dell’Opera di Roma & Sir John Barbirolli
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb639478a70dfbd80a3f61142e14ece5144f5204ec0fcd6e20b0f67a1fe3eeb68. 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/GBAYC0801256.
Puccini: Suor Angelica: "Ave Maria" (Chorus, Suor Angelica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db8f3df9b15585e1c6e6071f92683d8ebf5e5127d4f0726736057d5e51c336d. 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/GBAYC0801281.
Puccini: Gianni Schicchi: "O Simone?...Simone?" (Rinuccio, Zita, Gherardo, Nella, Betto, Simone, Marco, La Ciesca, Gherardino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30fdb85afa1626a287e7384cbebf9e5f80dc273f2b6abf2fe7ad717e578665ad. 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/GBAYC0801305.
Puccini: Il tabarro: "Ma certo. Pensi a tutto, cuore d'oro!" (Michele, Giorgetta, Luigi, Tinca, Talpa, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1fa92622a52ddfde62905e532040928257e04157bf8b751dc0123f8786fa4e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801257.
Puccini: Suor Angelica: "Sorelle in umiltà" (La Sorelle zelatrice, Prima conversa, La Maestra delle novizie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bb8b517f16606ebb6ace831eba982255ccfea0531f44bf6dd41da574b9bb20. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBAYC0801282.
Puccini: Il tabarro: "Eccola la passata!" (Luigi, Giorgetta, Talpa, Tinca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe74064594ecacb02a1e2dbcf44fb0f97d60e3b9750578f6a8bc2199edf69ff9. 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/GBAYC0801258.
Puccini: Suor Angelica: "Suor Lucilla, il lavoro" (La Sorelle zelatrice, La Maestra delle novizie, Suor Osmina, Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa214c8cf1f312dd0200fa19da8f0746afeb0cb3dd769ce60c3c9c56d9780a271. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801283.
Puccini: Il tabarro: "La musica e la danza van d'accordo" (Luigi, Giorgetta, Talpa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc173092c3b1aeabebda496450ea200932d836af32cbc138a32d0562f8a70f1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801259.
Puccini: Suor Angelica: "Oh sorelle! Sorelle!" (Suor Genovieffa, Una novizia, La Maestra della novizie, Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9a06ced7816f738a21e831eb816ec9fe4e0f440b3fcee5db2329802fd1e9f2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801284.
Puccini: Il tabarro: "Dunque, che cosa credi?" (Giorgetta, Michele, The Vendor of Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056205d4d76955b9cbafd1edab33250fb9e2947d669fade94d02a445248ffe1c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801260.
Puccini: Suor Angelica: "O sorella in pio lavoro" (Suor Genovieffa, Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da7acbfddbe6d88f04e9107212f314715c6743efba143af290be6c22032bef4. 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/GBAYC0801285.
Puccini: Suor Angelica: "I desideri sono i fiori dei vivi" (Suor Angelica, La Sorella zelatrice, Suor Genovieffa, Una novizia, Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e66b62d25cd7bb123d7622b5021def6b59815b938af48c95d27e1564a43e050. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801286.
Puccini: Suor Angelica: "Io sì. Io confesso" (Suor Genovieffa, Suor Dolcina, Una novizia, Suor Angelica, Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a965e67f2b6e150e03d3f104a2b1a245c6fdd8d0f95b6ace5b016ba05d5c155. 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/GBAYC0801287.
Puccini: Il tabarro: "Se tu sapessi gli oggetti strani" (Frugola, Giorgetta, Talpa, Michele, Luigi, Tinca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0223a4f7daee9e3fca3a027f478dfd82dc5a26c88ec5046983b9105b7a4795a0. 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/GBAYC0801263.
Puccini: Suor Angelica: "Laudata Maria" (La cercatrice, Suor Dolcina, L'altra cercatrice, La Sorella zelatrice, Una suora, Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c24c41fc6bb0b229bfe0cb56771f944766b6d394a1606fd30074795280443a7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801289.
Puccini: Suor Angelica: "Chi è venuto stasera in parlatorio?" (La cercatrice, Suor Angelica, Suor Genovieffa, Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0671c87d7375807540d06cb1d24da310ccb7a635eafd7e1efc1cc7c44c360af8. 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/GBAYC0801290.
Puccini: Il tabarro: "È ben altro il mio sogno!" (Giorgetta, Frugola, Luigi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da5d83b984868781a0e79c291615fc4ad3a16f6a469f322cead262d78240f5f. 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/GBAYC0801266.
Puccini: Suor Angelica: "Di frequente, la sera" (La Zia Principessa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96b73823cc7560dbe9b131428c3626ef8b8bec8f6eae0e776e8aad384d2e381. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBAYC0801294.
Puccini: Suor Angelica: "Senza mamma, o bimbo, tu sei morto!" (Suor Angelica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a8def28cb0aaade0daa17b52bf85d556ffd094d970526bbdaacbb595f2bf63. 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/GBAYC0801297.
Puccini: Il tabarro: "Il fiammifero acceso" (Giorgetta, Luigi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935ff61324515457c5302c86227ca6a3b35568140f36668c22cc7da07c82b52d. 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/GBAYC0801272.
Puccini: Suor Angelica: "Sorella, o buona sorella" (Suor Genovieffa, Coro, Suor Angelica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e998262bb1f8110ce36bde066934d0bb005c2c72917381be537b4b591f089e. 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/GBAYC0801298.
Puccini: Il tabarro: "Come è difficile esser felici!" (Giorgetta, Michele)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abac609c503ea5ce1eb17625d404755e74f5bb4ad1b11e0781ecb4803f22b08. 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/GBAYC0801273.
Puccini: Suor Angelica: "La grazia è discesa" (Suor Angelica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1716f7d24d0656c3432dd3a19b262a75503163967a93fc13b1c0979d876ad6. 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/GBAYC0801299.
Puccini: Suor Angelica: "Addio, buone sorelle, addio, addio!" (Suor Angelica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd872a4058027af09a54446ea2a8436c5f4bc8f23aa9680d17548412cfc55ed7f. 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/GBAYC0801300.
Puccini: Il tabarro: "Resta vicino a me!" (Michele, Giorgetta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c3e69192932b42063bf207903962beb0a535bcb03c4604171b251fa827a0e4. 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/GBAYC0801275.
Puccini: Suor Angelica: "Gloriosa Virginum!" (Coro, Suor Angelica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e319236df2f1fb41c8f2d5ee8f845edbb4d33da43e2fb6bf930578b2cde940. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBAYC0801302.
Puccini: Il tabarro: "T'ho colto!" (Michele, Luigi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb10c09a374dc9c7bf7e6af920a91fb801141ae06c7e28aa8239b03db1d5a556. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0801278.
Tosca, S. 69, Act III: E lucevan le stelle - Execution & Finale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed24516162215cc420fadc5794f46816c3293a3c63dbcf9c03cf0c114edc823. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8700539.
Puccini, Il Trittico: Il Tabarro - Suor Angelica - Gianni Schicchi
100 Greatest Tenors, Vol. 3 (Recordings from 1941 to 1960)
Gian Carlo Menotti: Amelia al Ballo [Opera Buffa in One Act] (1954)
Der Rosenkavalier, Op. 59: Final Trio and Duet (Recorded 1954)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60c0efb8b7e537d3f0065509e73e86e6eda3eddfeb0a64b7b4629058e31d7bf. 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/GBAJU0800401.
Lebendige Vergangenheit - Giacinto Prandelli (Vol.2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0ff65fabe221fd5e2fdcdf94d6fff1e4ebc64db86c7a515f21c781d648379a. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP130651405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe566f8c518b33c383e08bd32ace7ea915022c029d81c5cf5e4d5a5da55c400b. 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/ATP130651411.
Lebendige Vergangenheit - Giacinto Prandelli
La Wally, Act I: Ebben?... Ne andrò lontana (Wally)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5469416850c5432ad499cc0ee10b18e34b1ecff4af4b16e2182c0b14784e1687. 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/FR10S1739791.
Catalani: La Wally: Ebben? Ne andro lontana - Act One
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97700d53f02501909580838c2b2fbc7bb08c50e521019863073981f4296087c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US89R0699000.
Verdi, G.: Messa Da Requiem (Toscanini) (1940-1950)