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 0x1f7f39583c894e29ce46c295a66bf345da2e36d29b44d80cf0c58cccd2268238. 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/16d5b487-e1d1-4e0a-9043-510c53e83e78.json and https://artists.proofprofile.net/proofs/artist/16d5b487-e1d1-4e0a-9043-510c53e83e78.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x694797ebbc51c8458bd976ba1fa9c14b186120e231384e8d92849f4820bd2121. 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/FROV62027701 — a six-check JSON result.
My Heart is in the Highlands: My Heart's in the Highlands
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8648a1ef78dcdb3fed6adcd843c4c6ea66ac71a23061949de0fb7fc4ca62a40. 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/FROV62027702 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053f75f3ab618850920b84922f81a9ef5037f2abf1e848a895e6b6d2043831af. 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/FROV62027703 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bec747ca2a5ebb6b9ce2fa96ab1b967d4f20a51ab058afdddd7ea871d462575. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/FROV62027704 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcbcc88dc2015d836e7efbe3633a1ba337a314ebeb238cc588a0414519fc408. 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/FROV62027705 — a six-check JSON result.
Ein Wallfahrtslied (Adapted by Tomasz Wabnic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1810cf0beb85178ff1413376516c891588a2883e7895085867b7790b1113ab. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/FROV62027706 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8dc255a13018816c56ee12428d959412baed778ebf13d8dbde821870d1357a. 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/FROV62027707 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2180e761778fb5c214b192685c96c87d65cd48191cf796871d24c4b7c8e3f0ca. 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/FROV62027708 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c562c1d5b5d489fc87d6bbcd443ae567cd3ea86c34ef2814fce9f6e8d4fcc8. 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/USSM11914909 — a six-check JSON result.
Rusalka, Act I: Mesicku na nebi hlubokém
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924a3282a4fe61d17387784899556e7b8dcd2e79a2e0588a3773c9bb03034efc. 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/USSM11914912 — a six-check JSON result.
Madama Butterfly, Act II Scene 1: Un bel dì vedremo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77c01bf8bd3d8f9491a1334c8019a1970a1f3883b323b7b537c1dc3678c6eb0. 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/USSM11914914 — a six-check JSON result.
Silence Is Something You Can Actually Hear
Arietta - Based on Grieg's Lyrical Pieces, Op. 12
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6972b2bbf0ecb1704e0d6e8bf8f2da10aa156a08b9249ac676e9faacd59e7c5d. 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/DES382310001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572e68615b6c96141a353066d29bff19f4ecd0eefa75f168e053b8f9aa85cbb4. 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/DES382310002 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0564720576f1f940558c7e27afde423e6a620bf15092865f78e32a2f2a8cdf1. 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/DES382310003 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69c11abc00898e839314bac5da9c4f73c24486e4726e8939c11d2be960711a8. 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/DES382310004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e348d3fb221062c54a8146f9c7a1772ad8d530cbdf9754707d37bed387e0c4. 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/DES382310005 — a six-check JSON result.
Enjoy the Silence - Piano and String Quartet Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4051ef4f2ca2453af350c36064f908e3ef7d4c7d6bc3e167473e53473469c24. 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/DES382310006 — a six-check JSON result.
Nich Yaka Misyachna - Ukrainian Folksong
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193cb216e53618d7d71a5f742af3b56d606c2200791d06d3e5639ab8d51fd7b2. 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/DES382310007 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c88135690658c591bd0bd7131b50c5592a9cfdda2d0df0c4874328ad3687c5f. 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/DES382310008 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b76fd7b65b95620a80dbe1da894674932a2ee42fee47ffbc5a55a482164ed14. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/DES382310009 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fa2123533e73f786bdb8a0a7e9b9fccae4e5853a486a1c530013f1992ad14b. 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/DES382310010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e4595ec8a6f73f10f20d96de4c5d7b7c7a0722dc11ac22a74661facedc6aa6. 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/DES382310011 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f9a45c28e70bb6248ba49984cfc57ac887f8fb0110ff72640bebe67ec2927b. 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/DES382310012 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05376c4b97cbf3f09c1855ac559f5254570e0f917e3e14f5479cd795f2bcb896. 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/DES382310014 — a six-check JSON result.
Orchestral Suite No.3 in D Major, BWV 1068: Air - Arr. For Piano by Tim Allhoff
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076ae74aac5e475692c5f1ec71c67774bcd7e19051a59f2ff00d6576f5830868. 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/DES382310015 — a six-check JSON result.
Don Giovanni, K. 527: Deh, vieni alla finestra (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b938f73cccb613a970727bd0176d0aa67f3385bed3b9dfa681abc97c49307b. 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/FROV62024801 — a six-check JSON result.
Die Zauberflöte, K. 620: Ach, ich fühl's (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6602c8317870b6b0601285971fc295958be1cefae2778d2bfd4e6d3242c9ead. 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/FROV62024802 — a six-check JSON result.
Don Giovanni, K. 527: Dalla sua pace (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0065d155c85d649f43e818fa7469ae1f896f692e10bbbb5df24c334bd833bb7c. 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/FROV62024803 — a six-check JSON result.
I Capuleti e i Montecchi: Oh! Quante volte (Arr. for Cello and Orchestra by F. Chaslin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb068667b5369fbd8dbbc79ced52be24e8d3c9191d2047af0181bd49a9718ed2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FROV62024804 — a six-check JSON result.
William Tell: Fantasy on William Tell (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e1136660842cb0f9d81f9eba32ce01e127d165799098bf52ce5f05e789a3ca. 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/FROV62024805 — a six-check JSON result.
L'elisir d'amore: Una furtiva lagrima (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d4d138a3321b91cf1bcf5929feb9015a5b0e6bc43ae67b61870f8848da0608. 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/FROV62024806 — a six-check JSON result.
Rigoletto: Un di, se ben rammentomi (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfd80e60915483a51275f072ae46bd544d4f5810daf53f2b418612815fbd1fe. 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/FROV62024807 — a six-check JSON result.
Un Ballo in Maschera: Morrò, ma prima in grazia (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf6347021d318d0c974e3498e10a52398516df37894dd64f754f7b7ff447979. 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/FROV62024808 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf773f37c057202544d48d323e1c9b263c496b2229641b94d722a91efe95cbe8a. 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/FROV62024809 — a six-check JSON result.
Tosca, SC. 69: E lucevan le stelle (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad80071fc2a303bb320c1049b713297a4fcca1b8eac090c7a81a2a932537413a. 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/FROV62024810 — a six-check JSON result.
Madama Butterfly, SC 74: Un bel di vedremo (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57657aa6cef9f33a478142d5ec836fb688c4daf423ce982d9118fa1bffc564c6. 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/FROV62024811 — a six-check JSON result.
Les Contes d'Hoffmann: Fantasy on the Barcarolle (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b05af2ed7be0825532b1399f780b549e7a79d899c9803438fe51c2e1065bfe6. 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/FROV62024815 — a six-check JSON result.
La Périchole: Air de la Griserie (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bbfa084a3ea08ceb280d5901553234a0e48f99444fbf27e6c60e92586a0df8. 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/FROV62024816 — a six-check JSON result.
Simon Boccanegra, Act II Scene 5: "O inferno!... Sento avvampar nell'anima" (Gabriele)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0567b4d2ca1fdc04e8fd4e838a0c344259f9c68689b76fd3e82ddda0bd4860e. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FROV62435101 — a six-check JSON result.
Faust, CG 4, Act III: "Salut! Demeure chaste et pure" (Faust)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9bdfb542e46ef79102cd8bfcad24cd9c32695912b71c5837cf7f3694634896. 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/FROV62435102 — a six-check JSON result.
Le Postillon de Lonjumeau, Act I: "Mes amis, écoutez l'histoire" (Chapelou, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3167dc38a6b5200b2a1a407c8cee3b57e1c9954c54381d38dcf9f296146b03. 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/FROV62435103 — a six-check JSON result.
Martha, Act III: "Ach! so fromm" (Lyonel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f198df8d7d8a80c1b9ee37cb9ff912c02d9b820b08ea330972f3e4dca04163. 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/FROV62435104 — a six-check JSON result.
Lohengrin, WWV 75, Act III: "In fernem Land, unnahbar euren Schritten" (Lohengrin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f67358be2cb1d26db89ef58ab9c59f5bba9e2d5e4228fe3c3114380a038ff2. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/FROV62435105 — a six-check JSON result.
Lohengrin, WWV 75, Act III: "Mein lieber Schwan" (Lohengrin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c4537b7a7b1b4326de50d2f6c3d3474d6dde634f4f09dd3fb8f1fd56e8edac. 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/FROV62435106 — a six-check JSON result.
Halka, Act IV Scene 2: "Szumią jodły na gór szczycie" (Jontek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea6963699fbcbac4f8edb6f731b413078b7f692319fc251abefb354a89b98ac. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/FROV62435107 — a six-check JSON result.
Eugene Onegin, Op. 24, TH. 5, Act II Scene 2: "Kuda, kuda, kuda vi udalilis" (Lenski)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfddbee2e2850948d2d144769ee39f2f5058a58bc07f4ecd336d8855df6dcd7. 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/FROV62435108 — a six-check JSON result.
Sadko, Scene 4: "Les diamants chez nous sont innombrables" (L'Indien)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f4c147e2eae22301dd26f58e5069c5fa6c243eec3a40554e92b2c7de680815. 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/FROV62435109 — a six-check JSON result.
Polyeucte, CG 11, Act II Tableau 2 Scene 1: "Nymphes attentives" (Sextus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x264685f1bb21badb22e6c2cb7b12b28d8998cc126d2994e74fe8b7c7cc170bfa. 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/FROV62435110 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f459c0cd10971d2f00b0d1b371d75485197c6dca18468a7a1ac42c090dfe88b. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FROV62435114 — a six-check JSON result.
Au clair de la lune (Sérénade française)[Arr. for Tenor and Orchestra by Christoph Ehrenfellner]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6ef1e7a4bf46a92146bdf1d0224ea2797e020e065ed6c3f7913527a82a3d28. 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/FROV62435115 — a six-check JSON result.
La Spagnola (Arr. for Tenor and Orchestra by Christoph Ehrenfellner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442e5a3399d7063037938d910e1b2fe8708225a6df4b3d55c3658f48eeeabdc5. 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/FROV62435116 — a six-check JSON result.
Ay, Ay, Ay (Arr. for Tenor and Orchestra by Christoph Ehrenfellner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5220c4cb8edc7d2fec9ac050132495fbbd450162946c8ab721bbab8b32c90e. 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/FROV62435117 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe78ad4398d56e40e108faa4e89c06b91577f9b6a8871da376f7d6f38c79d229. 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/FROV62435118 — a six-check JSON result.
Be My Love (Arr. for Tenor and Orchestra by Alexander Timofeev)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9f63cad839eab430216fdd0f3d6acb92f56f2730805383e5344d6d2e18b83e. 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/FROV62435119 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3207d7fc0fd76f35f8ca172c2508329e63d80ef4465216dc1d7df48a33453a43. 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/FROV62435120 — a six-check JSON result.
Don Giovanni, K. 527, Act II: Crudele ? Ah no, mio bene! (Donna Anna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645aa0d592d7feece17fe41de5e93e01b0a10d70a535046bbde80b77cf1d5b65. 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/FROV62335301 — a six-check JSON result.
Don Giovanni, K. 527, Act II: Non mi dir, bell'idol mio (Donna Anna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8063185a63c77cbdcaccfcb6f45132ae1f5a5aeefbc7eeb67ce5c950bbdb4687. 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/FROV62335302 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82514274cc27b2d1d937981fddfe65d04cbd5c2eae0c2c8f706212365542ce7d. 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/FROV62335303 — a six-check JSON result.
Ah! perfido, Op. 65: Aria. Per pietà, non dirmi addio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1b2c720b41a37bbc723a463da8a7b5ecada4d30eef76643a7bafd8cb4a1b9a. 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/FROV62335304 — a six-check JSON result.
Le Comte Ory, Act I: En proie à la tristesse (La Comtesse)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9834f3be60af6017c45ca5b7258f0c44b13290395c2feff2981822f37c7141. 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/FROV62335311 — a six-check JSON result.
Die Zauberflöte, K. 620: Der Hölle Rache kocht in meinem Herzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb476f1d5041ef7df3a3a76c7ff11ba74660d1214e8a345090f0249f55c4c3f11. 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/FROV62126501 — a six-check JSON result.
Mozart: Don Giovanni, K. 527: Non mi dir, bell'idol mio (Donna Anna)
Rossini: Le comte Ory: En proie à la tristesse (La Comtesse)
Mozart: Zaide, K. 344: Ruhe sanft, mein holdes Leben
Mozart: Die Zauberflöte, K. 620: Der Hölle Rache kocht in meinem Herzen
Sakamoto: Merry Christmas, Mr. Lawrence (Arr. for String Orchestra)
Merry Christmas, Mr. Lawrence (Arr. for String Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de81a86c12ff56329c9bb8558c83b2878bf78b00cd7cb2334dffa58065ac957. 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/FROV62340101 — a six-check JSON result.
Drigo: Les Millions d'Arlequin: Sérénade
Moniuszko, Halka: "Szumią jodły na gór szczycie" (Jontek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea6963699fbcbac4f8edb6f731b413078b7f692319fc251abefb354a89b98ac. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/FROV62435107 — a six-check JSON result.
Verdi: Simon Boccanegra: "O inferno!... Sento avvampar nell'anima" (Gabriele)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4051ef4f2ca2453af350c36064f908e3ef7d4c7d6bc3e167473e53473469c24. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DES382310006 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076ae74aac5e475692c5f1ec71c67774bcd7e19051a59f2ff00d6576f5830868. 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/DES382310015 — a six-check JSON result.
Arietta (Based on Grieg's Lyrical Pieces, Op. 12)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6972b2bbf0ecb1704e0d6e8bf8f2da10aa156a08b9249ac676e9faacd59e7c5d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DES382310001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8dc255a13018816c56ee12428d959412baed778ebf13d8dbde821870d1357a. 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/FROV62027707 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8648a1ef78dcdb3fed6adcd843c4c6ea66ac71a23061949de0fb7fc4ca62a40. 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/FROV62027702 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694797ebbc51c8458bd976ba1fa9c14b186120e231384e8d92849f4820bd2121. 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/FROV62027701 — a six-check JSON result.
Orchestral Suite No.3 in D Major, BWV 1068: Air
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076ae74aac5e475692c5f1ec71c67774bcd7e19051a59f2ff00d6576f5830868. 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/DES382310015 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572e68615b6c96141a353066d29bff19f4ecd0eefa75f168e053b8f9aa85cbb4. 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/DES382310002 — a six-check JSON result.
Alexander Wladigeroff: Die Sonette an Orpheus I, XXII