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 0xed5de5a47d94356ab5e865e5e55a01f68aa1f2cc8b08f890937363758c8742bb. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/970d0745-ee8c-4209-9c06-1515da15ff0a.json and https://artists.proofprofile.net/proofs/artist/970d0745-ee8c-4209-9c06-1515da15ff0a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Royal Swedish Opera Archives Vol. 7: Tannhäuser - Siegfried - Parsifal
Saint-Saëns: Samson et Dalila / Berlioz: Les Troyens
Die Zauberflöte, K. 620, Act I: Der Vogelfänger bin ich ja (Papageno)
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 0x316d2fc1f8b0c64d85e446db5471c96ee14a74670b515ba667e33e048cf39b17. 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/DEC628600562 — a six-check JSON result.
Don Giovanni, K. 527, Act II: Il mio tesoro intanto (Don Giovanni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc2291fc68a7d88ad3def0093049078d52441a571d8ba4a19b7c8e760c2aebe. 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/GBAYC9004425 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act I: Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9247635577149f79a7dd193c2fc5cb77b28f2218534d3d076c6ed2b160d167. 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/HKI190348101 — a six-check JSON result.
Carmen: Carmen, Act I: L'amour est un oiseau rebelle, "Habanera"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975ba0af516173b811bb9c46843277358aea7ba4dd791562fff2ccf9e00f07bd. 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/HKI199220603 — a six-check JSON result.
Manon Lescaut, Act I: Donna non vidi mai simile a questa!
Belgian Radio and Television Philharmonic Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab5213d6a14a180866aee7ad3aeb1fa45b9274c357a2cb301f3fdebbc8a7bcd. 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/HKI199290107 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d563709318ec90680026dd48ec4e3ab816d290066c4d4aff352fba8c1c1f14. 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/HKI190301808 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act I: Aria: Non piu andrai, farfallone amoroso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bd9a92eecd30dc32a0c2a9f4ec88d7fe97feb2f8865ded3b2953c4035d13e3. 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/HKI190348120 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc910e47fb31b3fd2fd5f9fcb401bc07461314c13406b10a6fc5d460f81bfc252. 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/HKI190159310 — a six-check JSON result.
Madama Butterfly, Act II: Un bel di vedremo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a4e7f1bb37236d793852395b4b8134f1a13554a2991a8371e16c05cc1a1361. 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/HKI199287408 — a six-check JSON result.
Don Giovanni, K. 527, Act II: Aria: Vedrai, carino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400bcc2105d402739d83443ab8f9523dfc3ba90456d208b7498edd45c3086b7e. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/HKI190136424 — a six-check JSON result.
Carmen: Carmen, Act II: Toreador Song: Votre toast, je peux vous le rendre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8883b1a6d19fb9880e337a5cf3cd641bfb1e3d798039f554e3e0e6905c9b83a. 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/HKI199220606 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6205485fb0c7e32d7a916d36ebcbb1ea2fde3831dc0b3684c9807fdc1656798. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/HKI199190415 — a six-check JSON result.
Die Zauberflote (The Magic Flute), K. 620, Act II: Der Holle Rache kocht in meinem Herzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca1f93242ab74332c23515d22d541842226c49c73cefbb40ab13710d92e888b. 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/HKI199490208 — a six-check JSON result.
Les contes d'Hoffmann (The Tales of Hoffmann): Les Contes D'Hoffmann: Barcarolle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fe00cb2530b4ba22e0e85602900138812fa5a791bef62d610a69cce1a11a48. 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/HKI190323009 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bf3b30fdfc0431b081fb35d8a0ec17481a24fa729bfc43b3b3f1838d9ae917. 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/HKI190316406 — a six-check JSON result.
Madama Butterfly, Act II: Humming Chorus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b71b6ec6e797b1206620e6ac1341eadf329256192619da73e4306d7e53040d0. 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/HKI199287411 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cda9532a65dad285bc7a9fbfc66a7efd51afad7afc59ea1197fda3b5fe2c02. 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/HKI199092209 — a six-check JSON result.
La Wally, Act I: Ebben? Ne andro lontana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769e720285311ad46195857586275f62c60484b3cfc3a30c76166077fc1878d8. 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/HKI199310904 — a six-check JSON result.
A Guided Tour of Nationalism in the Romantic Era, Vol. 2
Operans motiga väg till Storan: Göteborgs Lyriska Teater 100 år
Verdi: Aïda, Act 1 Scene 1: Romanza, "Se quel guerrier io fossi! … Celeste Aida" (Radames)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262007d9070e18ddf2d6b1e3d08f82b79b2e5568ad7c6e98fc09351037714a70. 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/GBAYC9704714 — a six-check JSON result.
Verdi: Rigoletto, Act 3 Scene 2: "La donna è mobile" (Duca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764ab5024b870aef2b688556331f0ce59cba9acd0509f7bff193ab6d009079c8. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9704716 — a six-check JSON result.
Rigoletto (1997 Digital Remaster): E il sol dell'anima
Hjördis Schymberg/Jussi Björling/Orchestra/Nils Grevillius
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f667ffbeb1b47806e62b3cf7f8f4d7aaf60e9bf0bba69a52aa56a23aca1084. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9704761 — a six-check JSON result.
La Bohème (1997 Digital Remaster): Che gelida manina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918e6d143fc71010c17a32df11c50dbc20d9252c6acd50b98a9b620be298de65. 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/GBAYC9704718 — a six-check JSON result.
Turandot: Nessun dorma (Act III) - 1997 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c806fd7e0c3cda17b89d0dfacebf19c0a020f514543df990920888dd2a51863. 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/GBAYC9704765 — a six-check JSON result.
La Fanciulla del West (1997 Digital Remaster): Ch'ella mi creda libero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2ff67dc83925db7b5783df22bf2b9dcf5c1203312b14c635faebca2449ed59. 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/GBAYC9704725 — a six-check JSON result.
Fedora: Amor ti vieta (Act II) - 1997 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec62fb73ba84c81a23009c2ba6d528823ab1c85837887e39b08ce772e553e978. 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/GBAYC9704768 — a six-check JSON result.
L'Africaine (1997 Digital Remaster): Mi batte il cor....O Paradis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd47767e721d0140aea20ee4087721a5df7feb8a9972fa437f9bc1842c576c0. 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/GBAYC9704733 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60896f44b92ff83d701920a4ca32361953795391d95f6948f1fda14c03900dfb. 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/GBAYC9704734 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b34bb54d942cbad03a2aa8a9d7ea25c40c0793ac4c77d1227391f344807ab0. 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/GBAYC9704735 — a six-check JSON result.
Donizetti: L'elisir d'amore, Act 2 Scene 7: No. 11, Romanza, "Una furtiva lagrima" (Nemorino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58afe38b4057d1ade35553200e8f70e7aa81533c53840d3f6d2b0cb9f884d249. 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/GBAYC9704775 — a six-check JSON result.
Bizet: Les Pêcheurs de perles, WD 13, Act 1: No. 4, Romance, "Je crois entendre encore, caché sous les palmiers" (Nadir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e114ad0bb1f22dbbfada092ac02da1e6bc24865bd2f233d0a39198d42322906. 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/GBAYC9704777 — a six-check JSON result.
Massenet: Manon, Act 2: "Instant charmant" - "En fermant les yeux, je vois là-bas" (Des Grieux)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48db0c00fa71bd57c271c18c979fd3b9edf9620c30220477521173c4f792a7b6. 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/GBAYC9704739 — a six-check JSON result.
Carmen: La fleur que tu m'avais jetée (Act II) - 1997 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc8a9f7c3cea2d389ec4c11c3a883f73ee8067b8d931c04782d3bf4aa0f66e7. 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/GBAYC9704740 — a six-check JSON result.
Martha (1997 Digital Remaster): M'appari tutt'amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9e4d242488faef103072e14779173f54096b0c6730bdde2621c29183f81436. 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/GBAYC9704743 — a six-check JSON result.
Puccini: Manon Lescaut, Act 1: "Donna non vidi mai" (Des Grieux)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b29d0e1ce4613c2a2f7c8d99fa6981758ffba9bd1b18220c094ca3b1b683de. 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/GBAYC9704786 — a six-check JSON result.
Rigoletto (1997 Digital Remaster): Questa o quella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9261203df606eb88a903424d49e718a6c1eeb8453bd84d9159e0cbdc6d4cef8. 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/GBAYC9704757 — a six-check JSON result.
L'elisir D'amore (The Elixir Of Love): Una Furtiva Lagrima
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff63253417a7d7ba2586318d02064820e122571d672d577dbe809b0ae2e7dc0. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/HKI199602510 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dba4b2be224401773dd884a74c4871e1b95c8893dcc72310ea7f32a52f4e264. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GBAYC9002476 — a six-check JSON result.
Il Barbiere di Siviglia, Act I: Largo al factotum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26712d9352fbfc3500a54e75b86c12824546b2fdfbe8a9ddb3d0990e3a29ca86. 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/GBAYC9202948 — a six-check JSON result.
Tosca, S. 69, Act III: E lucevan le stelle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd242c71d9c821b2a7ae5a5f9d324a5119ea8cee8cbafcba68814562d17a20227. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9704943 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89031d74230beedb970c09a21de7a07a7fd6a54eede9e43604eab4617a3004b7. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/GBAYC8703975 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7497f64f34229dbbb327f8beecab7ae3570d3df2434a7cba14858fc0549adaf6. 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/GBAYC9602461 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6b13d9371b5412aa6a13f5d5b7674987245692337e677957d3bd0461b1b3ca. 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/ITD006400012 — a six-check JSON result.
Pagliacci, Act I: Vesti la giubba (Canio)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9145ec6a3483bcf7fed5d2780a43b6845f838b6e915e67fff600831597917f26. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBAYC9803701 — a six-check JSON result.
Don Giovanni, K. 527, Act I: Finch'han dal vino (Don Giovanni)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf515d2af686bce62c00bc44cc7b38fbdf0dd6f9bc995b640ffb5416d206eecd. 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/GBAYC8703977 — a six-check JSON result.
Parsifal, Act 3: Nur eine Waffe taugt (Live)
Classical Music at the Movies - Romantic Comedy
Concierto de Aranjuez: II. Adagio (Brassed Off)
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Royal Swedish Opera Archives Vol. 4: Aida - Lohengrin - Parsifal
A Guided Tour of the Romantic Era, Vol. 8
Schreker: Orchestral Music from the Operas
The Ring - An Orchestral Adventure Based on Richard Wagner
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Der Ring des Nibelungen: II. Das Rheingold
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ef6b969086465aa07dfcaf79f570ce54451324b80ee3acc059f9f2a65d5dea. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/SEAEV1352030 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5ae829a483575e8b6dc33974f643d4b5702aecbc327c83923ca9a837767d04. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEV1352040 — a six-check JSON result.
Der Ring des Nibelungen: V. Die Walküren
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Der Ring des Nibelungen: VI. Feuerzauber
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1ccacdbe6eac53ef44cea91336c9558cfe2690b800c0feb2c43f38ee4dad4f. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/SEAEV1352070 — a six-check JSON result.
Der Ring des Nibelungen: VIII. Siegfrieds Heldentat
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Der Ring des Nibelungen: IX. Brünnhildes Erwachen
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Der Ring des Nibelungen: X. Siegfried und Brünnhilde
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Der Ring des Nibelungen: XI. Siegfrieds Rheinfahrt
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Der Ring des Nibelungen: XIII. Trauermusik
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Der Ring des Nibelungen: XIV. Brünnhildes Opfertat
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Royal Swedish Opera Archives Vol. 5: Die Walküre
Tosca, Act 3: E lucevan le Stelle (Live)
Verdi: Rigoletto, Act 1 Scene 1: No. 2b, Ballata, "Questa o quella per me pari sono" (Duca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeff3d992aa536342ab390433a3fd65c400a0e8ecd0b0c37cc162a9564470894. 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/GBAYC9704763 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764ab5024b870aef2b688556331f0ce59cba9acd0509f7bff193ab6d009079c8. 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/GBAYC9704716 — a six-check JSON result.
Verdi: Il trovatore, Act 3 Scene 6: "Ah sì, ben mio, coll'essere" (Manrico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d084f779c904dc382a67af65b60e18a9934d50e71ade2eb7d72c702daca2b1f. 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/GBAYC9704749 — a six-check JSON result.
Verdi: Il trovatore, Act 3 Scene 6: "Di quella pira … l'orrendo foco" (Manrico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae86588abe3f0aac758491eddcfc38c11f404834df51d7454dac925d39a94ca9. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GBAYC9704751 — a six-check JSON result.
Verdi: Un ballo in maschera, Act 1 Tableau 2: No. 11b, Canzone, "Di' tu se fedele" (Gustavo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59932a3f9f065321a08dd1772da2b52014eda8e515c8feca38759e266526180. 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/GBAYC9803696 — a six-check JSON result.
Verdi: Messa da Requiem: II. Sequence, 8. Ingemisco (Tenor)
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Rossini: Stabat Mater: II. Aria, "Cujus animam gementem" (Tenor). Allegro maestoso
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e114ad0bb1f22dbbfada092ac02da1e6bc24865bd2f233d0a39198d42322906. 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/GBAYC9704777 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58afe38b4057d1ade35553200e8f70e7aa81533c53840d3f6d2b0cb9f884d249. 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/GBAYC9704775 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451d6a242a6a4c1dea55addfe95dee476505f750b9ff56dfc8f7dd885993afaa. 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/GBAYC9704805 — a six-check JSON result.
Ponchielli: La Gioconda, Op. 9, Act 2 Scene 4: Romanza, "Cielo e mar!" (Enzo)
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Strauss, R: 4 Lieder, Op. 27: No. 4, Morgen!
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Giordano: Andrea Chénier, Act 4: "Come un bel dì di maggio" (Chénier)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e0cb4c4e08476c62b3f8d14ebf1a6c8e5b9ef1c77214ff51760bf82b47933d. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/GBAYC9704767 — a six-check JSON result.
Giordano: Fedora, Act 2 Scene 7: "Amor ti vieta di non amar" (Count Loris Ipanov)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9145ec6a3483bcf7fed5d2780a43b6845f838b6e915e67fff600831597917f26. 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/GBAYC9803701 — a six-check JSON result.
Cilèa: L'Arlesiana, Act 2: "È la solita storia del pastore" (Federico)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b29d0e1ce4613c2a2f7c8d99fa6981758ffba9bd1b18220c094ca3b1b683de. 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/GBAYC9704786 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60896f44b92ff83d701920a4ca32361953795391d95f6948f1fda14c03900dfb. 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/GBAYC9704734 — a six-check JSON result.
Puccini: La Bohème, Act 1: "Che gelida manina" (Rodolfo)
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Puccini: La Bohème, Act 4: "In un coupè? … O Mimi, tu più non torni" (Marcello, Rodolfo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a1c0dced8e5ea93d3ee037b266912e19160bb3cf2ffde7aa1b5ec853f83829. 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/GBAYC9803693 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0a698e64a7329bb8ef295cfb9f0614ebae8bc6ea8a1a6b8d4b2eb09333e03a. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/GBAYC9704773 — a six-check JSON result.
Puccini: Tosca, Act 1 Scene 3: "Recondita armonia" (Cavaradossi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde66d6a6466c88da1a2e64a381187fd3ada4beb59cb4d19a0a431f23883c5716. 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/GBAYC9704788 — a six-check JSON result.
Puccini: Tosca, Act 3 Scene 2: "E lucevan le stelle" (Cavaradossi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e23b6d944953f6e6ad4315453482a9a281091b115c1abb07f589bd06c2f0fb0. 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/GBAYC9704789 — a six-check JSON result.
Puccini: Turandot, Act 3 Scene 1: "Nessun dorma!" (Calaf)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566fe53ba1e38290bdb14927f8cafb6725cb8502bba31b9242275323861c4bce. 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/GBAYC9803703 — a six-check JSON result.
Mascagni: Cavalleria rusticana: "Mamma, quel vino è generoso" (Turiddu)
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Offenbach: La Belle Hélène, Act 1 Scene 7: Ronde, "Au mont Ida, trois déesses" (Pâris - Sung in Swedish)
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Leoncavallo: Pagliacci, Act 1 Scene 4: "Recitar! Mentre preso dal delirio … Vesti la giubba" (Canio)
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La traviata, Act I: Libiamo ne' lieti calici (Alfredo, Violetta)
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La traviata, Act I: Sempre libera (Violetta)
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La Gioconda, Op. 9, Act III: Dance of the Hours
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Il Barbiere di Siviglia, Act I: La ran la le ra la ran la la ... Largo al factotum ... (Figaro)
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Le Nozze di Figaro, K. 492, Act II: Voi signor, che giusto siete
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Les Pecheurs de Perles, WD 13, Act I: Au fond du temple saint
Orchestre du Theatre National de IOpera-Comique
Orchestre Du Theatre National De L'Opera Comique
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La Wally, Act I: Ebben? ne andrò lontana
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Carmen, WD 31, Act I: "L'amour est un oiseau rebelle"
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Handel: Alcina, HWV 34, Act 2: Aria. "Ah! mio cor!" (Alcina) [Live]
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Heat of the Moment: A Tribute to Lars Cleveman (Live)
Love & Marriage: Classical Music for Your Wedding
Wagner: Wagner at the Royal Swedish Opera - Tannhauser - Parsifal - Siegfried Excerpts (Sung in Swedish) (1955-1959)
Verdi: Aida (abridged performance, 1956) / Wagner: Lohengrin (excerpts, 1952) / Wagner: Parsifal (excerpts, 1959) Royal Swedish Opera Archives Vol. 4