Ettore Bastianini (24 September 1922 – 25 January 1967) was an Italian operatic baritone who was particularly associated with the operas of the bel canto tradition. Early training and career as a ba
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 0xf8c9d58f81c6eeedbd92dd355403966785132c32bfe8af6765f1d2f2f2b3ebc6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c69ff8f-c287-4cea-a776-2d475f295b5c.json and https://artists.proofprofile.net/proofs/artist/9c69ff8f-c287-4cea-a776-2d475f295b5c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Orchestra del Maggio Musicale Fiorentino
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 0x9632f745fe807113c9f918215df90cc75e6bd52b2e9dc35004c0e6261b2b5f62. 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/ITCC51104795 — a six-check JSON result.
Il barbiere di Siviglia, Act I Scene 1: Piano, pianissimo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ee4ba3d15931be3298f1f82a380946cef6b25ceda8c3bf4599237111eeb43a. 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/ITCC51104796 — a six-check JSON result.
Il barbiere di Siviglia, Act I Scene 1: Ecco, ridente in cielo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc69b4f8e60f4c07177809233878f8c09d31caf24bd4f4ba1811042897bf806. 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/ITCC51104797 — a six-check JSON result.
Il barbiere di Siviglia, Act I Scene 2: Largo al factotum della città
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f78cc47caafe37dd991fcecdff055992d29646260d881189ed6c832be54a7ef. 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/ITCC51104798 — a six-check JSON result.
Il barbiere di Siviglia, Act I Scene 4: Se il mio nome saper voi bramate
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1604c6f7f801159f21712e6a0f68b941e72789747204178b9819296b665c00. 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/ITCC51104799 — a six-check JSON result.
Giacomo Puccini: La Boheme,Vol. II (Recorded in 1959)
Andrea Chénier, Act III: Act III: Nemico della Patria?! (Gerard)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3302d203c0f226cd37ab78f6c86c550a2b4f666096536de8f134ba769bd241d6. 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/DEB950668214 — a six-check JSON result.
Handel: Hercules, HWV 60 (Sung in Italian) [Live]
Poliuto: Act II: Sfolgor? divino raggio (Poliuto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bb22d19798e702d8be1ee0deb7ff471d3885e546877d21ec24a1fdd2afb519. 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/USB8U1505313 — a six-check JSON result.
Rigoletto, Act I: Questa o quella per me pari sono
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73472378a5eebe9f4a537c3442768ba6ec2cb624e94b8f217dc3f1f3e03de784. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/ITCC51104680 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3cd29b4862c92d452769508c95dee4b98a228f65e46b3b124c57444e325770. 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/ITCC51104695 — a six-check JSON result.
Rigoletto, Act III: Bella figlia dell'amore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0226df3daa7e5b497f32b324a2af09770468293c128390aeed90d5cfd8650b2. 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/ITCC51104705 — a six-check JSON result.
Paisiello: Il barbiere di Siviglia, R 1.64 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee73f919b72a4339d52bae84d3f0ec6128932eaf4e467719eae9e25d02d9128. 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/USB8U1518991 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce19d61b7a52a216ad2eb3aff05292b031b2b1c33bb62494487cc283da07b6f0. 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/USB8U1518993 — a six-check JSON result.
Il trovatore: Act II: Il balen del suo sorriso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd628e67ff01105f03bd7703894f28f5a71fdeac45cc8f32a70f4fe02bf2000. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USB8U1518995 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed07134c71f8c64dc7c889d7401ec50829d829b921112aa2d8b363d5f0bc1977. 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/USB8U1518997 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa487e6a5a43181c31e8f882c9378cf945bd25c3cc6dbbb3ce059b41635ad79be. 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/USB8U1518998 — a six-check JSON result.
Un ballo in maschera: Act III: Alzati! la tuo figlio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa3586131698f1635a8d413a1e929996303dd93a67ccaf39ce22c98c74caed3. 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/USB8U1519001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce0332eaebebd7b5655dc84259a0b6fc1a87812059b0c1c97efeab3f8843e9a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1519002 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf034dda38a47049a8cd3ba0e509bb1209eeffd58fa2500f6770ba428b5dc93e4. 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/USB8U1519004 — a six-check JSON result.
Don Carlo: Act III: Per me giunto e il di supremo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbc3db9c62801c5c11ff3ba5eb2fe3e6b2caf1c96428436e57482a1f413594a. 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/USB8U1519005 — a six-check JSON result.
Don Carlo: Act III: Che parli tu di morte?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4db22d3c40e8df2edfa7ff39f98aa38f1b3bd2c911da1871ac161b1ba54741. 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/USB8U1519006 — a six-check JSON result.
Otello: Act II: Vanne! la tua meta gia vedo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf3ee147ed30ed0bd6c1a6b5575398d1f0d7d6903b5dce98162feae3db98451. 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/USB8U1519008 — a six-check JSON result.
Otello: Act II: Credo in un Dio crudel, "Iago's Credo"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89615a66b71ef7c97813d133f8e01a065a48a72bcc4c0ff732594c8ce7ad0ca9. 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/USB8U1519009 — a six-check JSON result.
Il barbiere di Siviglia (The Barber of Seville), Act I: Cavatina: Largo al factotum della citta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f4aac091d8ea3c7a793020b372d4ae326726455fedf2a334f42d8059608cbd. 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/USB8U1519010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830243b0e9746264346223506ff6d34761606e5a9ed68d54dfb43a5f869a8cef. 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/USB8U1519013 — a six-check JSON result.
Verdi: Don Carlos (Recorded 1956) [Live]
Tchaikovsky: Mazeppa (Sung in Italian) [Recorded Live 1954]
Puccini: La bohème & Highlights from Tosca (Live)
Leoncavallo: La bohème (Recorded 1958) [Live]
Ettore Bastianini: A Discographic Career (Recorded 1955-1962)
Il barbiere di Siviglia: Act I: Largo al factotum della citta
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Un ballo in maschera: Act I: Alla vita che t'arride
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158ea359d2ebbd04232ed4b64d0d60a4bda960847521651fddbfd0f844b435ac. 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/ITCC51101625 — a six-check JSON result.
Il barbiere di Siviglia: Act I: All'idea di quel metallo
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Un ballo in maschera: Act III: Eri tu che macchiavi quell'anima
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3825356b751498913c19d76854a345d3438942469307fe4baae38774612ab538. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/ITCC51101626 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe931513285086652057fcd890eb4fa82643b225ef62304b5a76f60b24acc9203. 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/ITCC51101612 — a six-check JSON result.
Rigoletto: Act II: Cortigiani, vil razza dannata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08df26b2590f427eff2e0218c8e1775f0dd0598aaa0f7c9292a81b3758338ad. 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/ITCC51101613 — a six-check JSON result.
Il trovatore: Act II: Il balen del suo sorriso - Per me ora fatale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177bb1b5173ab64afab27cea69fb2e84da954dc32f040af39dcc38477f18e37c. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ITCC51101618 — a six-check JSON result.
Il trovatore: Act IV: Udiste? Come albeggi - Qual voce!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c4cfe42addcbd937508f70d680f1bd986edb0e490216744318b820c88d27bc. 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/ITCC51101619 — a six-check JSON result.
Andrea Chénier: Act III: Nemico della Patria?!
Orchestra dell'Accademia Nazionale di Santa Cecilia
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La traviata: Act II: Pura siccome un angelo
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La traviata: Act II: Ah! Dite alla giovine
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52495e754d8d2356c47ffd9882aa21ebb8b8a35e3b8615d1af2d355e4865a2bf. 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/ITCC51101624 — a six-check JSON result.
Donizetti: Lucia di Lammermoor (Live Recordings 1957)
Don Carlo, Act II: È lui! Desso… L'infante!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b1055befafbf7072f8ff44a632ec1030b706219ab325ed988d38081760d0d0. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51100328 — a six-check JSON result.
Ettore Bastianini: Highlights of a Short Life, Vol. 7
Ettore Bastianini: Highlights of a Short Life, Vol. 5 (Live Recordings 1955-1960)
Ettore Bastianini: Highlights of a Short Life, Vol. 1
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c01a1627c6bb01fe3257b44bcb598b55820854d51057e48b481d92f12c4f49. 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/QM6N21489574 — a six-check JSON result.
Rigoletto, Act I: Della mia bella incognita borghese
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e2b494bd102f5a72c879626a51185b8195823d4241db7614095c989529fb5f. 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/QM6N21489560 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ada2ffe8e5469b18d5052e4c869b361180c9ce304ae915eaaa9f3668b0e85c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM6N21489575 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93dc42a721568afa5d460acb72010f09438320f2accfff592c8fab9550a5b95. 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/QM6N21489561 — a six-check JSON result.
Rigoletto, Act III: Possente amor mi chiama
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f19d29d024d76acc0c8e7fbbdeb240e7b4fd1949f334b6c84c2a3ffa25f03b. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QM6N21489576 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443d2103e2aebdc41cf16532e2ad84c3e9c4a9d938a48834ae1687c25cef5b68. 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/QM6N21489562 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e53a216842d39551bec1a1f319ac1b93e2cef512233c8cf9e5f9b07affd223f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QM6N21489577 — a six-check JSON result.
Rigoletto, Act I: Gran nuova! Gran nuova!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37ed2b819b2913c864930ee50a33bc459830b40861cd4f17a6959688e5043ed. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QM6N21489563 — a six-check JSON result.
Rigoletto, Act III: Cortigiani, vil razza dannata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f104c24d3b2993d6ca19c27396c6b0aeaf6fbc6c6824b1b50f0b1fc35ca161. 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/QM6N21489578 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebe25413d67bf5e00031365d85e7f6fdd71b67bc62fccf8cf256a7f69e9385a. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21489564 — a six-check JSON result.
Rigoletto, Act III: Mio padre!...Tutte le feste al temio Dio! Mia Gilda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1aa5485fe6f19d7165c5cda70a5a9bb88d77271d4bc836ffc23dfbbec91c60. 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/QM6N21489579 — a six-check JSON result.
Rigoletto, Act I: Quel vecchio maledivami
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48da3a6eb5bcd91fb7f3b6f48bab45b08bf9e22813f4699c80ebe2f971bf5a66. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/QM6N21489565 — a six-check JSON result.
Rigoletto, Act III: Tutte le feste al tempio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31deabaa50c09ec3eafc98c3d217c8ea74795656ff833686b3bf3e1af6be056e. 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/QM6N21489580 — a six-check JSON result.
Rigoletto, Act II: Pari siamo! Io la lingua
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59dfc367990dab5ce8e64bccac71d92ff2c580bdf52024d51683584639c01685. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QM6N21489566 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12dfc9ec3c721e9dcb18e0eecfb8ab24c312971129b20f2d5c1afbfd140db084. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM6N21489581 — a six-check JSON result.
Rigoletto, Act III: Sì, vendetta, tremenda vendetta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb487f643e6779073b8e352fe18d48a9738e28bf0cb4f581128c2ef854e3dd1. 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/QM6N21489582 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee4b66253559579a95150252b585c62f75e8299d1e7f70c4af38240bca7dbe5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM6N21489567 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe99480e0603b5c35e7571589b1c818a1c5e8530a221295beff2c6a3f29e238. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QM6N21489583 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71c778403299f2a57cdddf6a06a2f0654de011ee9eb203c140543e18118a2bf. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QM6N21489568 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce944f591d3477ee7586f673612c660d0871733cbf02a65855c462211915bbf6. 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/QM6N21489584 — a six-check JSON result.
Rigoletto, Act II: Giovanna, ho dei rimorsi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f76a6680890b0bbcf90b57357b0341aec48ac889e624618f8993e8dc620c17. 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/QM6N21489569 — a six-check JSON result.
Rigoletto, Act II: Che m'ami, deh, ripetimi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590c3f91422b48c9b34b1f2075c3562195e44f54bd004bf13134ed7005e561d0. 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/QM6N21489570 — a six-check JSON result.
Rigoletto, Act IV: Un dì, se ben rammentomi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2209a4137576d73e27bf88120a873d1643e3fd38c78e7dec3ba4e0a0af90686f. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QM6N21489586 — a six-check JSON result.
Rigoletto, Act II: Gualtier Maldè…Caro nome
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4caaeb477844d366dd80eca6394c0343c864e34b48d06ff8050215e84306abf8. 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/QM6N21489571 — a six-check JSON result.
Rigoletto, Act IV: Bella figlia dell'amore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7000bb13f966a4cf4e83714a75b549316215f0ca0a06651619585fab060d4de. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21489587 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c92ec3502f0a81903617bf5455ee3dd1e4e8e5b37765c20e7561ae3f3e68d2. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QM6N21489572 — a six-check JSON result.
Rigoletto, Act IV: Venti scudi hai tu detto?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2245f69fc7dad6cc1df4fb437f40236af2e49708be0c39b3d99028e09b825283. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QM6N21489588 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aee175734ab5e21dee956d05256b1283e64632efa339c7e2d69fff62de86e05. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QM6N21489573 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83239226c11b2ecaee07241e24cce719aa28ebc38aaa02bc7ec40b47d7b52cf4. 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/QM6N21489589 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd081669228562880b5b49f42403115c203e82a0453c641a136927c09e5e7349. 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/QM6N21489590 — a six-check JSON result.
Rigoletto, Act IV: Della vendetta alfin giunge l'istante!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824ac1247af86b348e70c3c06fa5225cd3f67cd74ed51ee24d6adcf8ae2270e9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21489591 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fafb26a9419abf0f68083a56b6c18f89795d8fa9a4e3f519938b60e19b5c083. 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/QM6N21489592 — a six-check JSON result.
Rigoletto, Act IV: V'ho ingannato, colpevole fui
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994db4d812d6a5982883760958fe979021c9538d09140cf98d1449ada2653232. 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/QM6N21489593 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc78e600090d3c39e1719103dcbcddcf99a2a099b207055cb20ed69569ab94e. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QM6N21489594 — a six-check JSON result.
Bastianini - A Life in Opera: Rossini, Donizetti, Ponchielli, Verdi
Un ballo in maschera: Alzati…Eri tu che macchiavi
Orchestra del Teatro Comunale di Firenze
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd651975c586b105e4adf7e1c54bdd909ec4facb90f12cbcd24bfd33ff306408d. 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/USA370917907 — a six-check JSON result.
Famous Italian Baritones of the Past ( Vol. 2 )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be4cc7d63d81b30564a27e7b0e83ca62d1edbcbf356c7c12c2fed68364d4f3d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ATP130494217 — a six-check JSON result.