thumb|Giacomo Aragall (left) Jaume Aragall i Garriga (; born 6 June 1939), better known as Giacomo Aragall, is a Spanish operatic tenor. He became known for his role singing Rodolfo in Puccini's La bo
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 0xf38d6ee933fb59423799598555b6efe6631f405cd1742ac9a18bdebe50293e1f. 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/9f361f01-f5c1-4213-afa3-e205faad3644.json and https://artists.proofprofile.net/proofs/artist/9f361f01-f5c1-4213-afa3-e205faad3644.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Bellini: I Capuleti e i Montecchi (Live)
I Capuleti e i Montecchi: Act I: Preludio
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 0x4e0cf81fb3470dffeff7841fa07cef76967fc0a55fb0cdcbd0b0be2d5053d0a7. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/ITX921001551 — a six-check JSON result.
I Capuleti e i Montecchi, Act I: Act I Scene 1: Aggiorna appena … (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2e45d1bbc1d30cff8a7fb7e60ff530c3e4d6de275ea49f0137e61f87b69670. 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/ITX921001552 — a six-check JSON result.
I Capuleti e i Montecchi, Act I: Act I Scene 1: O di Capello, generosi amici (Tebaldo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ad86194e216bad45a6f16dbd681ed227abed0b5d785a8df59c084c02514d14. 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/ITX921001553 — a six-check JSON result.
I Capuleti e i Montecchi, Act I: Act I Scene 1: E serbato a questo acciaro (Tebaldo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65942ef4622565a8be4de01a4a471a7137485f1e4af550ac81d7847ad510afe4. 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/ITX921001554 — a six-check JSON result.
I Capuleti e i Montecchi, Act I: Act I Scene 1: L'amo tanto, e m'e si cara (Tebaldo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5233fa9dc7ae9d810aca5ddd78ae653abab310638dc896b756d3e44fff79dc. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ITX921001555 — a six-check JSON result.
I Capuleti e i Montecchi, Act I: Act I Scene 1: Vanne, Lorenzo (Capellio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda875f2534a07b0e3ac6da74f2dfc3d5adf7e373f9f8238032449531783e11d. 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/ITX921001556 — a six-check JSON result.
I Capuleti e i Montecchi, Act I: Act I Scene 1:Se Romeo t'uccise un figlio (Romeo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c471799bcbbf36a29ae1d19e778ad2b6e4376806d2ca3cec5df98bd162f4b1a. 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/ITX921001558 — a six-check JSON result.
I Capuleti e i Montecchi, Act I: Act I Scene 1: La tremenda ultrice spafa (Romeo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d37728cb00034dd69b5ce3177961f3a66798182a13e1877fa0fbcb6d325ba9c. 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/ITX921001559 — a six-check JSON result.
I Capuleti e i Montecchi, Act II: Act II Scene 3: Tu sola, o mia Giulietta (Romeo, Guilietta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05f6ad570c3e1bf0a867c89b4deaa03cc695c0dc4c0e1bc9bb66041e6876c46. 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/ITX921001580 — a six-check JSON result.
I Capuleti e i Montecchi, Act I: Act I Scene 2: Eccomi in lieta veste … (Giulietta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ded1f7932bb2f9dc3f3be318d29cefe1561fbaf90637764d5d82ad87e13024. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ITX921001560 — a six-check JSON result.
I Capuleti e i Montecchi, Act I: Act I Scene 2: Oh, Quante volte, oh quante (Giulietta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667f230824c538adcb7f87a43ad149f1202711b8c845d71d1ceea4bb0efa0269. 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/ITX921001561 — a six-check JSON result.
I Capuleti e i Montecchi, Act I: Act I Scene 2: Ah, crudel, d'amor ragioni (Romeo, Giulietta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65cd75466a66a972ddba3e933110653e6b71c71e42e5f3b5e30cacda4e52d279. 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/ITX921001564 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438d7c7d77d67388a1f9481eb6f0b299e2c49e92edbab3bc3268e96ab146eda5. 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/GBF076841701 — a six-check JSON result.
La traviata / Act 1: "Dell'invito trascorsa è già l'ora"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe23ad97ecbb6fd5e5217d0ac4ca6491cd7c29508ffc4023690c9bba1fe9884. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBF076841702 — a six-check JSON result.
La traviata / Act 1: "Libiamo ne'lieti calici" (Brindisi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe710730edd33635f50b7a400ef180046383704c18afd4b857251b0bab76a81ab. 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/GBF076841703 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb497e262d8deb9eaa417c73709ca5af6b9b74345a47162aef1118dbc2edd3b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076841704 — a six-check JSON result.
La traviata / Act 1: "Un dì felice, eterea...Si ridesta in ciel l'aurora"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945fcda3e354c11512f02e7ecfee66407c67daf3d0d48f4577fb3a3c37915ed4. 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/GBF076841705 — a six-check JSON result.
La traviata / Act 1: "Follie! Delirio vano è questo!" - "Sempre libera"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a252a05c402580933bdba5f83731e33a9b7849be3156e3798af70ffa0b3e26. 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/GBF076841707 — a six-check JSON result.
Pavarotti – The Opera Collection 1: Bellini: I Capuleti e I Montecchi (Live in Amsterdam, 1966)
I Capuleti e i Montecchi: Eccomi in lieta vesta: Sinfonia - Live in Amsterdam, 1966
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20ffe227eff6ffb90d2303f6cc6830b2d9fca6fc58d83eb64faa558fb103556. 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/GBF071240501 — a six-check JSON result.
Luciano Pavarotti: The Ultimate Collection Live – Over 100 Tracks Live in Concert and at the Opera
L'elisir d'amore, Act II: Una furtiva lagrima - Live in Rome, 1968
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12af669776cddd6553c46b5add1163634a808126bb3eff61d2e39a7c682ec9af. 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/USSRL0701617 — a six-check JSON result.
La fille du régiment, Act I: Ah! mes amis, quel jour de fête! - Live in London, 1967
Orchestra of the Royal Opera House, Covent Garden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc5d24ed5893238aafb52ae4b127100ba02c5e845071944c27405746050c59e. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USSRL0701618 — a six-check JSON result.
Manon, Act III: Io son sol... Ah! Dispar vision - Live in Milan, 1969
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577379bbdf14381b69a57e30f2f980ce95b56a6d310a1b8237c4c9380e582f7b. 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/USSRL0701619 — a six-check JSON result.
La bohème, SC 67, Act I: O soave fanciulla - Live in Modena, 1967
Filarmonica del Teatro Comunale di Bologna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957b75bad770cbbe5a6b06c3c026c76fd159d4e211e8091dfad270a842c7a1ea. 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/USSRL0701622 — a six-check JSON result.
La traviata, Act I: Libiamo ne'lieti calici - Live in London, 1965
Chorus of the Royal Opera House, Covent Garden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb897fb3f829f03be7417dca270391bf2ff7393d8c7b78026dd9b3b7f3dbd1c8. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSRL0701626 — a six-check JSON result.
Turandot, SC 91, Act III: Nessun dorma - Live in Grudziądz, 1964
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095408917d99f1788c43969b7af95608046d8a8c34df6bbfadbdfcdfa5a5d989. 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/USSRL0701616 — a six-check JSON result.
Lucia di Lammermoor, Act II: Tombe degl'avi miei ... Fra poco a me ricovero - Live in Turin, 1967
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3891e1e05e552a4bd14f11e484fc64b1310fd6cb6033c726e67d96098e032bba. 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/USSRL0701600 — a six-check JSON result.
Rigoletto, Act III: La donna è mobile - Live in Turin, 1967
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb74eee078e682fc83a26bf59d7309a1478d77cb319979c281efd30ad50a98e7. 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/USSRL0701605 — a six-check JSON result.
La bohème, SC 67, Act I: Che gelida manina - Live in Madrid, 1970
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac45ea2cbc06babb384c0ead66ac8783dbfe2bf2f73a7d720061bdee980987b4. 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/USSRL0701606 — a six-check JSON result.
Esclarmonde / Act 1: Esprits de l'air! Esprits de onde!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2580eade0a15ca66f711dbee05a576beb16a999c576af73600e8ae973bb74c. 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/GBF077540907 — a six-check JSON result.
Tosca / Act 1: "Mario! Mario! Mario!...Son qui!...Non la sospiri la nostra casetta"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dac80fc1380448cf39ae7b1632c75350b8280e078028140fff249d8a67c9ef. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/GBF078640105 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6002ab41ac92c5bb8290f5d0b14e16d56cacd316d5ee629613d9e818d9f490. 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/GBF078640125 — a six-check JSON result.
La Traviata, Act I: Brindisi - "Libiamo ne' lieti calici" (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9166d106b6bf020af045b7c2c31e655621096fff62d45fe97aa9b45eb128ef09. 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/US5541404100 — a six-check JSON result.
The Magic Flute, K. 620, Act I: Papageno's Aria - "Der Vogelfänger bin ich ja" (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83859e1bd2c04e266a08038127d42ecfee434b0356145724ac8b942f93311671. 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/US5541404108 — a six-check JSON result.
La Traviata, Act II: Germont's Aria - "Di provenza il mar, il sol" (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3044a177286492443a3fecf81398665353d17c23104fd7fa5e8533ac3588bbdd. 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/US5541404134 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8849d61d60ae445611dfb789daa25abb1b93aaee5a7fe48141740e425ac872cd. 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/GBSWE1442224 — a six-check JSON result.
The Marriage of Figaro: Non so più cosa son
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef6906d88ba00e6ad8b06e257b946ab49fc3d557e9339b7c52053b95b2f70aa. 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/GBSWE1442233 — a six-check JSON result.
Il barbiere di Siviglia (The Barber of Seville): Act I Duetto: Dunque io son... tu non m'inganni? (Rosina, Figaro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1424ae68664daba697e45b6add4736ecdf1675415af809ba0e88e5d7f4c427de. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/HKI199706407 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0358d93242fd3a3f3ede3cd79aae34245ff248eabadfd44183eefeb37cc731c. 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/GBF076140313 — a six-check JSON result.
200 Greatest Classical Music Favourites: The Essential Classics
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True Concentration: Classical Music for Studying
Ivan Klansky, Oldrich Vlcek & Virtuosi Di Praga
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In The Hall Of The Mountain King (From "Peer Gynt")
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Air on the G String (from Suite for Orchestra No. 3 in D Major, BWV 1068)
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The History of Italian Music (100 Famous Songs)
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Il barbiere di Siviglia / Act 1: "Largo al factotum"
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Classical Music in the Movies - Famous Film Scenes We All Love
The Marriage of Figaro, K. 492: Overture
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Il mito dell'opera: Jaime Aragall (Live Recordings 1966-1977)
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Simon Boccanegra / Prologue: Che dicesti?
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Simon Boccanegra / Prologue: L'altra magion vedete?
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Simon Boccanegra / Prologue: Oh, de'Fieschi implacata, orrida razza
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Simon Boccanegra / Act 1: Messeri, il re di Tartaria
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Simon Boccanegra / Act 1: Nell'ora soave che all'estasi invita
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Simon Boccanegra / Act 1: Plebe! Patrizi!
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Die schönsten Arien (Most Beloved Arias)
Méditation - The Beautiful Music Of Massenet
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Hérodiade / Act 1: "Il est doux, il est bon"
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Manon Ballet - Arranged and orchestrated by Leighton Lucas with the collaboration of Hilda Gaunt / Act 2: Scene 2 - Des Grieux's lodgings
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Pearl Fishers and Other Famous Operatic Duets
Les pecheurs de perles: Au fond du temple saint
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Lakmé: Blumenduett (Lara Croft Tomb Raider): Lakme: Dome epais, le jasmin
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Madame Butterfly, 1. Akt: Vogliatemi bene (Mona Lisa): Madama Butterfly: Viene la sera
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Madame Butterfly, 1. Akt: Vogliatemi bene (Mona Lisa): Act II: Humming Chorus (Coro)
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Gala Lirica. 20 Aniversario Del Teatro De La Maestranza
Carmen: L'amour est un oiseau rebelle (Habanera)
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Nessun Dorma And Other Favourite Italian Tenor Arias
GRANDI VOCI - LEO NUCCI Una collana dedicata con registrazioni originali Decca e Deutsche Grammophon rimasterizzate con le tecniche più moderne che ne garantiscono eccellenza tecnica e artist
20 Great Tenor Arias - "Nessun Dorma" - Bizet / Donizetti / Puccini / Verdi etc.