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
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, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6fee4243190d3dde375fe90837e16bf2b90c5cebb9e6865a9ce8f7db83a80e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210e144100917972388873413a6223496a28d94882d373d4f00424afb850eb15. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1014761.
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201522.
6 Lieder, Op. 50: No. 2. Der Jager Abschied
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246d0230454a16c93443f731bb42ab4245af023b62e7b8d2e04dc2360c8f195c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1013720.
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3578cd9ea39e249e3997063634fcf02b021bcaad4a75b156f037b227de404244. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1014763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5138ea23dd4ade7e6ea6ac6fb735a4f6c63a9b185614f41b75ae8453b877e38d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafd7cf014d691ea35f1bc0bb376dbf0c7705fe2a0ce18baf15ec03358d84150. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0905804.
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c55e47c584a982d13faf69d451580ca034352c68856f0e7e2d0e7d5c05abf5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201504.
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB269900113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784451057ddc6dea8868337722452a0f45251498b19b557f5d3cb8461effea31. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1014777.
Vesperae solennes de confessore, K. 339: Laudate Dominum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35f5efe6bc3645c3ec0802ad8fa596d5607f9f2ac003ed07c4a3c0f9e4b9255. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201505.
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1014894.
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1011255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63652a11d99b6e29d46a19d0d22a731f1671face6e97b462c63affcfdba7c679. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1014766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae912066d379f2c732cdd5ca301b082d3fe99aed32a7e325931b687599d0c19. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19bae38d94210b5f01e076fa2f95358ec464d9afa9c5594b957075fc14c058c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201539.
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 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1012563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a969a4b687bd473b0989486a5736998cc91a917e67209ccd028f30c0c3e487. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1014772.
Choral Music (Sacred) - Handel, G.F. / Mozart, W.A. / Haydn, F.J. / Beethoven, L. Van / Bach, J.S. / Mendelssohn, Felix / Bruckner, A.
Deutsche Messe, D. 872: Zum Eingang: Wohin soll ich mich wenden
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0932417.
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 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201510.
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: Sequence No. 1: Dies Irae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5e41b0c4c293d2bfc3880546ed8a639ef4ad70cddd82c0d45e1f56c7a96b8d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380003939.
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 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380004086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43330572e2fd72834dac9ec5b3a89c837413206698c0241d907b22ef991dc4af. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1008364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b02732f9db97c1b523ea734aaaac591134ef78e2c5051fb913ba03545af4e8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201521.
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a601104f647d8ace8b4ad4d32c7b8d17a75d71f57c5d1e7e4862b651df3237b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35f5efe6bc3645c3ec0802ad8fa596d5607f9f2ac003ed07c4a3c0f9e4b9255. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e0cfbacad5ea4e41d20c42ced41574589b7c9b7831c8083184ac3ed29e7fe8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201525.
Mass No. 4 in C Major, Op. 48, D. 452: Credo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96318b6705e3d333d11508f980a66cb0aa050b4c18004d9bf9bf37f273daeed. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201508.
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 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf466e33dc336d1005c2651ab0f3aa5d507321a2a6db790bf0824dca6d80da873. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201532.
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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5d9716156a81a2882e37781d8717d989a41541df96aeedb1c3da560afce70c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201516.
A Beginner's Guide to Learn to Love Classical Music
Orchestral Suite No. 3 in D Major BWV 1068: II. Air
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad3abb29a1d45104a6f84a9bd4d62d814b1022063e5d31da06e5f44f6e6a5fa. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US5541602752.
Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b7177ef7e9836741002a8965678e35ac30fee3c3823b7f0700578511fa2f63. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US5541602759.
The History of Sacred Music (100 Famous Songs)
Classical Masterpieces of the Millennium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7905e6a3ab555967d056e41e744ffe61a5237572e85e357f67e01119616da2f3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US5541304492.
Oboe Concerto in D Minor, Op. 9, No. 2: II. Adagio (arr. for trumpet and organ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18e9479a4b78d135b948f713ad6dd482cdc620cbfcf8b3661255d5298accfdd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1011367.
A Midsummer Night's Dream, Op. 61, Act II: Intermezzo (From "A Midsummer Night's Sex Comedy")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef18d50645a7f0cb786ef769bc15da70d39b5367f62eb7c3d837a8b718171f1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US5541202721.
Impromptu No. 3 in G-Flat Major, D. 899 (From "Gattaca")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a8adbaca4b05d602f889426dda075ffd5aada0cb71efc261307c8197195466. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US5541202723.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35f5efe6bc3645c3ec0802ad8fa596d5607f9f2ac003ed07c4a3c0f9e4b9255. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201505.
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. 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. 47. Aria: Erbarme dich (Alto)
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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