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 0x4c10548006d7039159819f1552bd00da8a8c7d9a470b692081f41ba309a4011b. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/051f77dc-e5ee-44d2-b177-ab2420df2ffe.json and https://artists.proofprofile.net/proofs/artist/051f77dc-e5ee-44d2-b177-ab2420df2ffe.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 0x8d6fee4243190d3dde375fe90837e16bf2b90c5cebb9e6865a9ce8f7db83a80e. 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/DEB261201582 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210e144100917972388873413a6223496a28d94882d373d4f00424afb850eb15. 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/USB8U1014761 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c64e46a104b303b988eec3b07f481da5246d178d702db1892dec0cf8c3c4f5. 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/DEB261201522 — a six-check JSON result.
6 Lieder, Op. 50: No. 2. Der Jager Abschied
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246d0230454a16c93443f731bb42ab4245af023b62e7b8d2e04dc2360c8f195c. 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/USB8U1013720 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5618bfcf51b3c7659ef21a04af3d5ea2f5b8185fb70ac6479a6f27c6aeb5c8b9. 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/DEB261201515 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3578cd9ea39e249e3997063634fcf02b021bcaad4a75b156f037b227de404244. 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/USB8U1014763 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5138ea23dd4ade7e6ea6ac6fb735a4f6c63a9b185614f41b75ae8453b877e38d. 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/DEB261201514 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafd7cf014d691ea35f1bc0bb376dbf0c7705fe2a0ce18baf15ec03358d84150. 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/US2TL0905804 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a601104f647d8ace8b4ad4d32c7b8d17a75d71f57c5d1e7e4862b651df3237b. 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/DEB261201524 — a six-check JSON result.
5 Humoresken, Op. 84: No. 3. Das war das Kloster Grabow
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71cc11e83b79a20393939b37c319f40969621209cd6f15f4d13a2937c920ca4. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1014764 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c55e47c584a982d13faf69d451580ca034352c68856f0e7e2d0e7d5c05abf5. 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/DEB261201504 — a six-check JSON result.
Winterreise, Op. 89, D. 911: No. 5. Der Lindenbaum (arr. for choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff228999e6c7bd9afd722f1fc6e83703e95177ff07ed269c4464143b5bbe859. 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/DEB269900113 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784451057ddc6dea8868337722452a0f45251498b19b557f5d3cb8461effea31. 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/USB8U1014777 — a six-check JSON result.
Vesperae solennes de confessore, K. 339: Laudate Dominum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35f5efe6bc3645c3ec0802ad8fa596d5607f9f2ac003ed07c4a3c0f9e4b9255. 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/DEB261201505 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8494cd2c2dfe64d729156ecb8c639f64ee72bee0115f02f62984a4eb2f30d368. 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/US2TL0905809 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8eafefb93b3faaaf0cc14736f37092400a8b4f76505b8a8b4adb2d102fdb9c9. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/DEB261201513 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367e115a6a5c71c500699a556ad1cdc1bb3f0568d5ee5a220fbcff9d36cfd9d7. 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/USB8U1014894 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d4e5eafe86f5330f9dbb9c72a473d79383907d1303bab5ec53fb629dc94781. 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/USB8U1011255 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63652a11d99b6e29d46a19d0d22a731f1671face6e97b462c63affcfdba7c679. 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/USB8U1014766 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f00369ebb9d24166fef7666308975a48f446677bd4b3834a306d2930af9da05. 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/USB8U1014753 — a six-check JSON result.
3 Motets, Op. 39: No. 2. O praise the Lord (Laudate pueri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3581bd08271a1904da86f27ce87915b8d871e3dcadf8daa1a3e569c49a9771. 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/DEB261201526 — a six-check JSON result.
6 Songs, Op. 48: No. 4. Die Himmel ruhmen (arr. for male choir)
Carl Maria von Weber Men's Choir, Berlin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b8ebee67dd929afa29fab4047fcf7c59000db5f2a69e28376615d58abdacb3. 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/DEB261201523 — a six-check JSON result.
Deutsche Messe, D. 872: Zum Eingang: Wohin soll ich mich wenden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8eb419829a633a971be8dde2308603c1de23ddff14fcbc2ad83c7fcdb48e70d. 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/USB8U1014755 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf134f9dda589107472c57a8b3ef280d0ba47f6f52bfbca933c35e66742b6a778. 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/DEB261201585 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae912066d379f2c732cdd5ca301b082d3fe99aed32a7e325931b687599d0c19. 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/DEB261201502 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53c2f99ae3e56c4931914510fd0cad3dd37c9d6200954188d78800e82701fe0. 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/USB8U1014757 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19bae38d94210b5f01e076fa2f95358ec464d9afa9c5594b957075fc14c058c. 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/DEB261201539 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50605d0964f34520ee83472ebf3a4effd068d7d0c707b79836d13819680a78f7. 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/DEB261201509 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a86204237776fdd9aa4b069131676fde2a0ec683ecbcd24304ac97a2ee9125. 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/USB8U1014760 — a six-check JSON result.
Ave Maria, Op. 533: Nun ist der laute Tag verhallt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a6eeb8660c21e967176390d54d970ac2c60096683725e75cf7e5004e8d7ee5. 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/USB8U1012563 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a969a4b687bd473b0989486a5736998cc91a917e67209ccd028f30c0c3e487. 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/USB8U1014772 — a six-check JSON result.
Choral Music (Sacred) - Handel, G.F. / Mozart, W.A. / Haydn, F.J. / Beethoven, L. Van / Bach, J.S. / Mendelssohn, Felix / Bruckner, A.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021b9dd7baec1560b1458ab48d74bef023990ceb19c4d80f76e1bbb8128d7db0. 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/US2TL0932417 — a six-check JSON result.
Lobe den Herrn, meine Seele, BWV 143: Chorale: Du Friedefurst, Herr Jesu Christ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8282102480e8bef4d0345dc2ac8b090dedbcb6665af00402d6a6a5691ae2768. 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/DEB261201510 — a six-check JSON result.
Classic Moods - Mozart, W.A. / Silcher, F. / Schubert, F. / Mendelssohn, Felix / Haydn, F.J. / Bruckner, A. / Brahms, J. / Bruch, M.
Haydn, M.: Missa Sancta Theresiae / Te Deum
Requiem in D Minor, K. 626: Introit: Requiem aeternam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcbe6309706eebbefa11b0fe8de15d10c55f541f251dd0ef3ca11d8853e2b18. 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/DES380003938 — a six-check JSON result.
Requiem in D Minor, K. 626: Sequence No. 1: Dies Irae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5e41b0c4c293d2bfc3880546ed8a639ef4ad70cddd82c0d45e1f56c7a96b8d. 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/DES380003939 — a six-check JSON result.
Requiem in D Minor, K. 626: Sequence No. 2: Tuba miram
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6688e9ab3f23015eaa6f38295e4d3f5ac93772624e83898134256ec729b423. 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/DES380003940 — a six-check JSON result.
Requiem in D Minor, K. 626: Sequence No. 3: Rex tremendae majestatis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3d879e9e137e618a9e425247073d44117b530e94b56bb6431a20212818d488. 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/DES380003941 — a six-check JSON result.
Requiem in D Minor, K. 626: Sequence No. 4: Recordare, Jesu pie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709414123e7ebfdd95f742b56a35196e50ff66749bf88b74a8bd4731940256b6. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380004084 — a six-check JSON result.
Requiem in D Minor, K. 626: Sequence No. 5: Confutatis maledictis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7df0e0335f00943b47b7e2a108a7ba425678bcae6c1c2d0d51ccb56cd2a6a0. 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/DES380004085 — a six-check JSON result.
Requiem in D Minor, K. 626: Sequence No. 6: Lacrimosa dies illa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ece5db8d9ab1fe17bafae7f8aaf33825abc8505a74e0af6dff4b1b95ee1d1d. 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/DES380004086 — a six-check JSON result.
Requiem in D Minor, K. 626: Offertory No. 1: Domine Jesu Christe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f495f776d358ccbd04922d3c839170bb57aca9ccbbf2ed2b1b5c608e57bd188. 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/DEB261201554 — a six-check JSON result.
Requiem in D Minor, K. 626: Offertory No. 2: Hostias et preces
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076acab1841e5e438ee6c297c95b80fbbacd5ed5c3b27d0e46db6f155c81b7d7. 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/DES380004089 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730dadb7b2380dacaf67d68866d7941f007dd29907190a915707604891ae9976. 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/DES380004090 — a six-check JSON result.
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Requiem in D Minor, K. 626: Communion: Lux aeterna
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Vesperae solennes de Confessore, K. 339: Laudate Dominum
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Mass in C Major, K. 317 "Krönungsmesse": Mass No. 16 in C Major, K. 317, "Kronungsmesse" (Coronation Mass): Kyrie
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Ellens Gesang III (Ave Maria!), Op. 52, No. 6, D. 839, "Hymne an die Jungfrau": Ellens Gesang III [Ave Maria!], Op. 56, No. 6, D. 839, "Hymne an die Jungfrau" [arr. H. Froschauer]
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6 Songs, Op. 48: No. 4, Die Himmel ruhmen (Arr. For male choir)
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The Creation, Hob. XXI:2: Die Schöpfung (the Creation), Hob.XXI:2, Pt. II: In holder Anmut stehn [Most beautiful appear] - Der Herr ist gross [the Lord Is great]
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Elias, Op. 70, MWV A25: Elijah, Op. 70, Pt. I: Double Quartet: Denn er hat seinen Engeln befohlen uber dir
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Mass No. 4 in C Major, Op. 48, D. 452: Credo
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Lobe den Herrn, meine Seele, BWV 143: Chorale. Du Friedefurst, Herr Jesu Christ
Sagt an, wer ist doch diese: Sagt an, wer isr doch diese
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3 Kirchenmusiken, Op. 23, MWV SD 7: 3 Kirchenmusiken, Op. 23: No. 2, Ave maria
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Ein deutsches Requiem, Op. 45: Ein deutsches Requiem (a German Requiem), Op. 45: IV. Wie lieblich sind deine Wohnungen
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A Beginner's Guide to Learn to Love Classical Music
Orchestral Suite No. 3 in D Major BWV 1068: II. Air
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Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
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The History of Sacred Music (100 Famous Songs)
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Classical Masterpieces of the Millennium
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Oboe Concerto in D Minor, Op. 9, No. 2: II. Adagio (arr. for trumpet and organ)
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Overture (Suite) No. 3 in D Major, BWV 1068: II. Air, "Air on a G String"
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A Midsummer Night's Dream, Op. 61, Act II: Intermezzo (From "A Midsummer Night's Sex Comedy")
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Impromptu No. 3 in G-Flat Major, D. 899 (From "Gattaca")
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Palestrina: Missa De Beata Virgine / Monteverdi: Sacrae Cantiunculae
Bach, J.S.: St. Matthew Passion (Highlights) / St. John Passion (Highlights)
St. Matthew Passion, BWV 244: Pt. I: Chorale. Erkenne mich, mein Huter (Chorus)
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St. Matthew Passion, BWV 244: Pt. III: Chorale. Wir setzen uns mit Tranen nieder (Chorus)
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The History of German Music (100 Famous Songs)
Christmas Choral Concert - Handel, G.F. / Mozart, W.A. / Bach, J.S. / Praetorius, M. / Gruber, F.X. / Bach, J.C.F. / Adam, A.
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Mozart: Missa brevis - Vesperae solennes de Confessore - Epistle Sonata
St. Matthew Passion, BWV 244: No. 1. Chorus: Kommt, ihr Tochter, helft mir klagen!
Budapest Boys' Choir of the Primary School of Music
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St. Matthew Passion, BWV 244: No. 2. Recitative: Da Jesus diese Rede vollendet hatte (Evangelist, Jesus)
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St. Matthew Passion, BWV 244: No. 35. Chorale: O Mensch bewein dein Sunde gross
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St. Matthew Passion, BWV 244: No. 3. Chorale: Herzliebster Jesu, was hast du verbrochen
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St. Matthew Passion, BWV 244: No. 6. Recitative: Da nun Jesus war zu Bethanien (Evangelist)
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St. Matthew Passion, BWV 244: No. 7. Chorus: Wozu dienet dieser Unrat?
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St. Matthew Passion, BWV 244: No. 8. Recitative: Da das Jesus merkete, sprach er zu ihnen (Evangelist, Jesus)
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St. Matthew Passion, BWV 244: No. 9. Recitative: Du lieber Heiland du (Alto)
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St. Matthew Passion, BWV 244: No. 10. Aria: Buss und Reu (Alto)
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St. Matthew Passion, BWV 244: No. 11. Recitative: Da ging hin der Zwolfen einer (Evangelist, Judas)
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St. Matthew Passion, BWV 244: No. 44. Chorale: Wer hat dich so geschlagen
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St. Matthew Passion, BWV 244: No. 12. Aria: Blute nur, du liebes Herz! (Soprano)
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St. Matthew Passion, BWV 244: No. 47. Aria: Erbarme dich (Alto)
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St. Matthew Passion, BWV 244: No. 15. Recitative: Er sprach: Gehet hin in die Stadt (Evangelist, Jesus)
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St. Matthew Passion, BWV 244: No. 17. Recitative: Er antwortete und sprach: Der mit der Hand (Evangelist, Jesus, Judas)
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St. Matthew Passion, BWV 244: No. 18. Recitative: Wiewohl mein Herz in Tranen schwimmt (Soprano)
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St. Matthew Passion, BWV 244: No. 19. Aria: Ich will dir mein Herze (Soprano)
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St. Matthew Passion, BWV 244: No. 21. Chorale: Erkenne mich, mein Huter
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St. Matthew Passion, BWV 244: No. 26. Aria: Ich will bei meinem Jesu wachen (Tenor, Chorus)
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Music for Valediction, Sixth-Former's Dance And Speeches
De Brevitate Vitae (On the Shortness of Life), "Gaudeamus igitur" [arr. C.W. Kindleben]
Hungarian Radio And Television Symphony Orchestra
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Farkas: Cantus Pannonicus / Cantata Lirica / Vivit Dominus / Tavaszvaras