thumb|Kenneth Montgomery (1984) Kenneth Montgomery OBE (28 October 1943 – 5 March 2023) was a British conductor active in the concert hall and opera house. He held music director positions in the UK,
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 0x9cd5962c324115903f511b5d04b3e354e8362c2f3dcbe68aecf9c496257b194d. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c8a278d-d8fa-41f2-a675-b59c5829828a.json and https://artists.proofprofile.net/proofs/artist/3c8a278d-d8fa-41f2-a675-b59c5829828a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Clarinet Concerto in A major, K. 622: I. Allegro
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 0x9810f81a1c0a48fe8a28fa400d36c680870032e8a5e622afefd0deaf130e7a86. 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/ES7892101401.
Mozart: Oboe Concerto & Other Works with Oboe
Solomon, HWV. 67: III. Sinfonia, The Arrival of the Queen of Sheba
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d1ad5fd7a1dd4df966e5df528575ba818edd7e68023c22b86dea3d6fa054a2. 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/GBAYC8300121.
Trumpet Sonata in D Minor, HWV. 367a: II. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cbeff434a272c0a91d5f077dcf5a5287f78f9924f1c7bf2f65951dcadbe597. 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/GBAYC8500621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612cab4a5c43304eda7fc3847bfcc406ac907b3b19d68b5202a9324656adf471. 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/GBAYC8700065.
Harpsichord Suite No. 4 in D Minor, HWV. 437: III. Sarabande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439d04fb7e3eedc6ccb88ce840243d20ef5d81905cbcfc48dc1ac9e48bba6944. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0201575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efd6fe1986370928048643bf465a9fba2d72e72deb557c256ade30d21e3d795. 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/GBAYC8301053.
Giulio Cesare, HWV. 17 'Julius Caesar' Act I: Son nata a lagrimar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e1e2a7ccdcc8feee0c2e9d8c6c25c31dff7406149f4ff54c4840fb16de8326. 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/GBAYC0003627.
Zadok the Priest, HWV. 258 'Coronation Anthem'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39bc7abe9441e2ae76e4c6cd20dd46f2c88057c1a677d77cbe91766aebffd2e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9400283.
Strauss II, J: Wiener Blut (Vocal Version, Arr. Müller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3ec9c98192bed022b9a06f3f1f9206ea825ef10904efea7e0c67cf04f8d4ff. 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/FRZ209806101.
Morricone : Cinema Paradiso : "Se tu fossi nei..."
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05c9f663938ceb6cd20f6046deefc89241259953a14d9860b1e0077f185b2f7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELP0400271.
Handel: Semele, HWV 58, Act 2: Air. "Where'er your walk, cool gales shall fan the glade" (Jupiter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1a81674ae9bb49f785c0fa5d5f82cb6e896d7bc2467e05b90c91e741775cc1. 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/GBELP0500443.
Schubert: Ave Maria, Op. 52 No. 6, D. 839 (Orchestral Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb898920e3c0211d6109d01278daf4e36d02070c88c46746ce337e9275888b48b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ200004160.
Johann Strauss II : Voices of Spring [Frühlingstimmen] Op.410
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5565767b3f3fb4cf0caa96ed08b4b0640e6faa48f3857ed8aa2191d071f863. 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/FRZ209806108.
Handel: Rinaldo, HWV 7, Act 2: Aria. "Lascia ch'io pianga" (Almirena)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cd5b7f6834ce0f915475ea69a05f3cb35cc98936bbf235e429eb78651bccd3. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELP0500449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddd2f11dc88bfe59cc0f76b53b159c859aaee2f43b09c6f41dab3d237214cb3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209714150.
Gounod : Faust : Air des Bijoux [Marguerite]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8605c34bb0602d2cead641dda1aeca0288a7a5815d24c1dfe72962893799573. 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/FRZ209801420.
Handel: Messiah, HWV 56: Aria. "I Know That My Redeemer Liveth"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf835b4f28b6b5e768e13c7327d5350738dba29e3523761d38b667400be6440f9. 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/GBELP0500451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95da7ce48743ca6774bcf1c66022ed2bc960ba16a6fb18b1dc08b73bb1c1f9a1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209714010.
Mozart : Le nozze di Figaro : Act 4 "Deh vieni non tardar" [Susanna]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebfae478e3acebf498163967079c251633e524fe546e2c50d1a11fb221e9db0a. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FRZ209619609.
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
Mozart: Die Zauberflöte, K. 620, Act 2: "Ach, ich fühl's, es ist verschwunden!" (Pamina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ced897b10ea0417c58df6dd92f0a40d55e96f6fd22ab0a959c1243c7b7160d. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209619602.
Handel: Coronation Anthem No. 1, HWV 258 "Zadok the Priest"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39bc7abe9441e2ae76e4c6cd20dd46f2c88057c1a677d77cbe91766aebffd2e. 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/GBAYC9400283.
Willem Mengelberg: Selected Compositions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7473a5c06d26895b743be7b2cdd53df1a6e7ce5f39f9426612371dc3bc4a03d4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD9600267.
Handel: Suite in D Major, HWV 341 "Water Piece": II. Gigue. Allegro
Württembergisches Kammerorchester Heilbronn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8be0eed09de789de4b6c4d82f931f6541ea6eece93b4bd5673fa6eeaa7687c5. 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/GBAYC8703807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5674495f1317617ab1bc4aa36489a0b001c6def03b8e2e7a8a95c0470db9195b. 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/GBAYC0002446.
Piano Concerto in A Minor, Op. 16 / Ballade in G Minor / Lyric Pieces
Composing the Island: A Century of Music in Ireland 1916-2016
Piano Concerto No. 2 in C Minor, Op. 126: II. Adagio molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fadb398e2ecc566de479c4b4d6dca469a2a60f16ac2220af23826ede263043. 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/CH1261110102.
Piano Concerto No. 2 in C Minor, Op. 126: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5a9a7f52457ec6a3288e3a5d2a4ccae79a7e29ef2055432f34ec00a3ad550d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH1261110101.
Piano Concerto No. 2 in C Minor, Op. 126: III. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a1f0a00472f7384f2733d5d20a6202a768713cc9fcedac2864523edc9e3bdb. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH1261110103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212caa274d5137d9a3b21821b898c85342ce41d830e2a023250b7f79cecbdf3d. 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/GBLWD0310004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe157defaac857b61bfb68903031b84bd69cbbe9752b9e27d354497e8ddf422c. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0310008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba832e9f07cf268d34d60ef7aafeeec0d2c8828a51b27d1443c6e370efcd440e. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0310013.
Mozart / Arr Simion: Die Zauberflöte, K. 620, Act 1: "Der vogelfanger bin ich ja"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e4738f4abd0ef0bbd5938591352ea4fc58b78049654183806775b8fcf81fa3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209213500.
Mozart: Clarinet Quintet in A Major, K. 581 "Stadler": II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36e65afe7e4a6eb43f6a5874b2b16acff84dea70957dda8716ec1af1ab5d447. 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/DEA807909102.
Mozart: Sonata for 2 Pianos in D Major, K. 448: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5608b15dd4d0e728b88efb248ebf8d3ec6927354c8161bce1bdd44b4b70818. 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/DEA809300902.
Mozart: Piano Sonata No. 12 in F Major, Op. 6 No. 3, K. 332: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb461981740f9b0c546ad9d820c6332046fad46b510be6b8fc0802205e958878f. 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/DEA808101402.
Mozart: Vesperae solennes de confessore, K. 339: V. Laudate Dominum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aedc3adc88ba066761d1a48142339ad12dfac2021d925486ce4ce597dfce08b. 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/FRZ206500005.
Mozart: Piano Concerto No. 23 in A Major, K. 488: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a887ff020d62375667374bca337c05893b6705874a662090bf98a6babde54eb. 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/FRZ207300701.
Mozart / Arr. Stanciu for Pan Flute and Harp: Piano Sonata No. 11 in A Major, Op. 6 No. 2, K. 331 "Alla Turca": III. Allegretto. Turkish March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230662e94ae70550ca574e4a2ac0e4517847a79cbc5495cb31baf6b395f14273. 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/FRZ209213700.
Mozart: String Quartet No. 14 in G Major, Op. 10 No. 1, K. 387 "Spring": II. Minuetto. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf32894376739a5631541c66e01b5fd4fa063dc0717a736d22a589b8bcd9c44. 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/DEA807700212.
Mozart: Rondo for Piano No. 1 in D Major, K. 485
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b39aa1850ae84f2bc497875f85dd9458d1188abbbd3cb6d9c4d2080b6a6459. 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/DEA808101404.
Mozart: Horn Concerto No. 3 in E-Flat Major, K. 447: II. Romance. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e3be925641bd38c824d490c09236715e492ab176f548f7511780816d23b090. 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/FRZ209630302.
Mozart: Symphony No. 41 in C Major, K. 551 "Jupiter": IV. Molto allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e338dd28c22495dff8b85bd369fdb6c39430d65bd07f96a81297f69672a3ed8. 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/FRZ207208004.
Mozart: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442413ee3cb9afe62fe6b56519393a6fcb045e9e2874744f20ba19834c8dc72f. 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/FRZ208303901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd83f6a914f0bdb2e07e8bcf09f891f6761cb050233eb5ac53a60b2df5f76720. 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/DEA809124640.
Mozart: Violin Concerto No. 3 in G Major, K. 216: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1398c4179d350b682d3292c34d2df387ae8c0de52e242500538d94c2609c5f4. 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/FRZ209710701.
Mozart: Piano Concerto No. 9 in E-Flat Major, K. 271 "Jeunehomme": III. Rondeau. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9286ef948b6c3a2b470aa254f4f09e0cb326e351ce1107f96dc884f5888ef04. 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/DEA809500003.
Mozart: "Vorrei spiegarvi, o Dio", K. 418
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05d141213c1aae3c26301815956c8513438ca3d244c4e7f03f7d1cbfe38c928. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209619603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a0d56ad3b588c2685801f28c347b417150a31041600ab8f1c6337b5f958d7d. 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/NL3UC2301190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c6a5417f8d2b9a50f47584c3b967e9146e8fcd9f6d896ec6ea8b7ff5485a0d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL3UC2301194.
Tchaikovsky: Serenade for Strings, Op. 48: I. Pezzo in forma di sonatina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5595ec990bfeecf4ec63de5e7e4fa1d257fd16b5d7a26921b3ffac53a548177. 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/GBAYC9007025.
Pachelbel: Canon and Gigue for Three Violins and Continuo in D Major: Canon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4453c95685d0f13e1f1d83b551bdec12ed88c8199bb810537686db1175dce78c. 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/GBAYC8600822.
Zadok the Priest, HWV 258 "Coronation Anthem No. 1"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7cfb89919130d76851ff08aebc8929029a2fb3fcd0f8980afc39ebba0f734c. 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/SEAER0936040.
Toccata and Fugue in D Minor, BWV 565: I. Toccata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c819dfccc242b441d8cb26cbbc73887f7945bb57d047739988061dc6749ef56. 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/GBAYC8905893.
Frank Martin, concerto, trois danses, ballade, passacaille