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 0x1bd6f050c6470dc0c9607c8b6289d9e2e2a691c5a366a65e789293b6758ce1e6. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2e59990-60a8-4c32-82b7-caca7e2c45a6.json and https://artists.proofprofile.net/proofs/artist/f2e59990-60a8-4c32-82b7-caca7e2c45a6.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 0x3f50a8e8727f4a7c90c9f44cc0b10c745f8ec0e654a9ca68ed54804ea6789074. 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/SEWDL0741302 — a six-check JSON result.
The Messiah, HWV 56, Pt. 2: Halleluja Chorus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7679e9c7fa0c23c39b91ade967180d76c6d961877ba2614c68c0997bb4d1625c. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), registered by our 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/SEWDL0741301 — a six-check JSON result.
Herz und Mund und Tat und Leben, BWV 147, Pt. 2: X. Chorale, Jesu bleibet meine Freude (Jesu, Joy of Man's Desiring) (Arr. for Organ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6b9affd118233262405c0df36c500ed7af3a7ec1e612629f4bb10728e0cdf4. 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/SEWDL0714905 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ca54eb17884839db6d6b93f532b483778dbc3d8ffcbe7f9c9b1b9187143500. 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/SEWDL0759603 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a0fe7bf2d883bda5380fce21609fd35aca6e43b4a0d83392e647fc64b108b0. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/SEWDL0759604 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303bf0db66a698b23052031fa4bf471568b68819f3361abb70807acb8eed5d84. 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/SEWDL0712302 — a six-check JSON result.
Symphony No. 3 in C Minor, Op. 78, "Organ Symphony": III. Maestoso - Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3964904fc409888683a65edd340eed8fddd4a642a721e0de7ff21d9635d54b78. 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/SEWDL0787717 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c952f621d4286a20351ae834e6b44aebd1bed8e7015b00f8026b292dabda38b. 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/USZDG0600979 — a six-check JSON result.
24 Pieces de Fantaisie, Op. 54: III. Carillon de Westminster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0804b367b791d570f239063d9587fe942677dfe464abdfa45c1d2a33583bedd6. 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/SEWDL0733608 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ae8fb2fb7e63289c8605bdf43fc09bff63ad79735f1fb51b65842bd4899bc3. 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/SEWDL0712305 — a six-check JSON result.
Organ Symphony No. 5 in F Major, Op. 42: Toccata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361298d5af6c14fbbfdfa7225d89147bad454fee4633d7c86cba49d5eea48ceb. 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/SEWDL0741306 — a six-check JSON result.
Trumpet Concerto in E-Flat Major: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ddc1c3260838dee4d6c03f62f8b4cd51a5704c63c131208c27bcdd290e0ce3. 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/SEWDL0706410 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb188bfbb3656bae160d40d1ad6aa6e06898a434dac30509e9b7a7d59393ad69f. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/SEWDL0717110 — a six-check JSON result.
Le quattro stagioni (The Four Seasons), Op. 8 - Concerto No. 1 in E Major, RV 269, "La primavera" (Spring): I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266340f846980e11c7624aec24b63c6e16c0e88c88afd3ad3f4ea074c4523d04. 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/SEWDL0721501 — a six-check JSON result.
Music for the Royal Fireworks, HWV 351: La réjouissance (with applause)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9fc135100b2441321a5bd5c306bee2399cd403fe85ab4b913aa394cd629bd17. 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/SEWDL0721603 — a six-check JSON result.
Concerto in D Minor for Oboe and Strings, Op. 1: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ae80a577842668143179478368ae9100a4440353273f83fbbc5b755dea8c7a. 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/SEWDL0508502 — a six-check JSON result.
Concerto in D Minor for Flute and Orchestra, Wq 22: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6daa76a90bb75810c6ab02a221892c5344415a853bdd61e3caba0dfc3a5b6053. 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/SEWDL0769901 — a six-check JSON result.
Sonata No. 12 in D Minor, Op. 5, "La Follia": Variations over an old Spanish Sarabande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2612f8279865829c5ed7e381d8172b3e62a786fd110626fd6c447fb071e6fa92. 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/SEWDL9430578 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee657ebcfb42caf49dab3c089e4cc49a13b812b5232ce47f479acf4c8a36240c. 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/USZDG0600154 — a six-check JSON result.
Concerto grosso in F Major, Op. 6,12: I. Preludio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca44a4c46e47f5456b29b7584e56348efe8c5de2459c24e71eb0ef927e2ce0d4. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0781616 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ca54eb17884839db6d6b93f532b483778dbc3d8ffcbe7f9c9b1b9187143500. 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/SEWDL0759603 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2037d7e48fcd5edade9e7bac982236bba6e096f9d222fdddb62579bc521f9d32. 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/DEB790303443 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675fdbdf6f0d1dd83255d3577d98842194de295afc1551f379e78cae8351272c. 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/SEWDL9430583 — a six-check JSON result.
Le quattro stagioni (The Four Seasons), Op. 8 - Concerto No. 2 in G Minor, RV 315, "L'estate" (Summer): III. Presto: Tempo impetuoso d'Estate
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4a3a50683000138cd279c9a75bb765314320913ee2970531ba5fe6de59e0fc. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEB790401182 — a six-check JSON result.
Solomon, HWV 67: The Arrival of the Queen of Sheba
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb2743274569acc97936c16c0193437ba2d06070489a6e4c2bc2f1bb47162ac. 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/DEB790401258 — a six-check JSON result.
Cantata, BWV 147, "Herz und Mund und Tat und Leben": Jesu bleibet meine Freude (Jesu, Joy of Man's Desiring)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac1ab7682db81ea048688d762edf2d7455b7080513746f0ca82900dfd08ac77. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZDG0700025 — a six-check JSON result.
String Quintet No. 5 in E Major, Op. 11: III. Minuet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ca8861a3d04673a54afd272ce7381f515972f2d7a98d69e5b0b16a34f47deb. 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/SEWDL9430582 — a six-check JSON result.
Concerto in D Major for Trumpet and Orchestra: III. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bff14358f8c96328b69550bbb60795c46ea4f05a2fad52e8c2ad27bb1ccb3aa. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/SEWDL0715912 — a six-check JSON result.
Trumpet Voluntary in D Major (The Prince of Denmark's March)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfa3f7608971384a775a519047ddef9e70c00927c2e0923126191835f23eee1. 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/SEWDL0749710 — a six-check JSON result.
Concerto in D Minor for Guitar and Orchestra, FWV L:d 1: III. Un poco allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508a50437958764a08a03fa9ff85e8a7caa938d33196b6a916c63578f55b3880. 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/SEWDL0763003 — a six-check JSON result.
Le quattro stagioni (The Four Seasons), Op. 8 - Concerto No. 3 in F Major, RV 293, "L'autunno" (Autumn): I. Ballo e canto de villanelli: Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa041e9e42438b6a2d1f0f7d0685dc5b56a410451de5df8301551c272a1e4a72e. 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/SEWDL0721507 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1dba99a84431737059c28acad5bf9cdc9c160cc61a562d15087997cc0e007f. 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/SEWDL0794903 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64316dc7060c92fb240d1d7997fe9d1b50dd876a6c5717b4fceb1b4d92a68730. 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/SEWDL0711110 — a six-check JSON result.
Concerto a cinque No. 2 in D Minor for Oboe and Strings, Op. 9: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0fd9502f522093df0b2453ab085de8d5720ea2a09677c7069c6146004df880. 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/SEWDL0508511 — a six-check JSON result.
Concerto Grosso No. 8 in G Minor, Op. 6, "Christmas Concerto": V. Allegro (attacca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a911d5457d48a4e041e8359b0961ee99a67f3edad3ac2cc0bdd53927ecdf3fe. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL9438540 — a six-check JSON result.
Concerto in G Major for Viola and Orchestra, TWV 51:G9: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed0e377e7890cc4c4b9cbbc47f5a6488eb7e65616fb15d75b4e718d63006b86. 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/SEWDL0710604 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7de4835953bc74808e9e1adc664ca400ea8e379505681490daeecce010e96d. 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/SEWDL9750007 — a six-check JSON result.
Concerto grosso in D Major, Op. 6,4: I. Adagio - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e31b81632f6946707541b6c28f9a885864dc9d537a1970603764f019f9d65a. 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/SEWDL0781601 — a six-check JSON result.
Concerto in D Major for Trumpet and Organ: I. Pomposo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea17994ea19426fc9436d1a427a3214629f6e649cd9d1f3fde5231c66437da6. 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/SEWDL0706401 — a six-check JSON result.
Concerto No. 1 in C Major for Recorder and Strings, TWV 51:C1: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcea2ae7040b7838838e30f2a891894e8f9aee0419ad5d82e5241a82a46c971. 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/SEWDL0769004 — a six-check JSON result.
Le quattro stagioni (The Four Seasons), Op. 8 - Concerto No. 4 in F Minor, RV 297, "L'inverno" (Winter): II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcace7395630a8352977e0bf6f2f79061361edfff075174ffee9c4cc57a085a07. 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/SEWDL0727809 — a six-check JSON result.
The Four Seasons, Violin Concerto No. 1 in E Major, RV 269 "Spring": I. Allegro
Canon and Gigue in D Major, P. 37: I. Canon
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Brandenburg Concerto No. 3 in G Major, BWV 1048: I. Allegro
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The Messiah, HWV 56: No. 44, Hallelujah (Chorus)
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Suite de Symphonies No. 1: Fanfare-Rondeau
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Music for the Funeral of Queen Mary: March (from A Clockwork Orange)
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Johann Wenzel Stamitz: Symphony No. 6, Op. 4 - Flute & Clarinet Concertos
Franz Liszt - Fantasía y Fuga Sobre Coral
De la Musica Antigúa al Barroco - Bach - Handel
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Haydn: Organ Concertos - Sinfonia Concertante
Zipoli: Pastorale for Organ (Digitally Remastered)
Vierne: Carillon de Westminster in D Major, Op. 54, No. 6 (Digitally Remastered)
Pachelbel: Vom Himmel Hoch da Komm Ich Her (Digitally Remastered)
Guilmant: Pastorale for Organ, Op. 42, No. 1 (Digitally Remastered)
Franck: Pastorale in E Major, Op. 19 (Digitally Remastered)
Brahms: Es ist ein Ros entsprungen for Organ (Digitally Remastered)
J.S. Bach: Herz und Mund und Tat und Leben, BWV 147 (Digitally Remastered)
Černohorský: Toccata for Organ in C Major (Digitally Remastered)
Buxtehude: In dulci jubilo for Organ, BuxWV 197 (Digitally Remastered)
100 Most Relaxing Classical Music In The Universe
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USSR Ministry Of Culture Symphony Orchestra
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The Merry Widow: "Lippen schweigen" (Orchestral)
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The Four Seasons, Concerto No. 4 In F Minor (L'inverno / Winter) RV. 297 (Op. 8, No. 4): II. Largo
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Violin Concerto in D, Op. 77 - II. Adagio
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Piano Concerto In A Minor, Op. 16: II. Adagio
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Serenade No. 13 in G, 'Eine Kleine Nachtmusik' K. 525: II. Romanze (Andante)
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Prelude To The Afternoon Of A Faun (Prelude A I'apres-Midi D'un Faune)
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Piano Sonata No. 14 In C-Sharp Minor Op 27, No. 2 "Moonlight": I. Adagio Sostenuto
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Songs Without Words, Op. 62: No. 6 in A Major: Molto allegro vivace "Fruhlinglied" (Spring Melody)
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Preludes, Op. 28 No. 15 In D-Flat Major "Raindrop" - Sostenuto
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Variations On An Original Theme, 'Enigma', Op. 36: VIII. W.N. (Allegretto) - IX. Nimrod (Adagio)
Koninklijk Filharmonisch Orkest van Vlaanderen
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Piano Concerto No. 21 In C K. 467: II. Andante
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Sleepers, Wake! (Wachet Auf, Ruft Uns Die Stimme )
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Water Music Suite No. 1 In F Major, HV 348: V. Air
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Well Tempered Klavier, Book I, No. 22 BWV 867
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The Four Seasons: Concerto No. 1 In E Major, Op. 8, RV 269, "Spring": I. Allegro (Danza Pastorale)
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Symphony No. 5 In C Minor, Op. 67 "Fate": II. Andante Con Moto
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Piano Concerto No. 20 In D Minor K. 466: II. Romanze (Excerpt)
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Cantata No. 147: Jesu, Joy Of Man's Desiring
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Liebestraum No. 3 In A-Flat Major, Op. 62
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Flute And Harp Concerto In C K. 299 / 297C: II. Andantino
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Piano Concerto No. 1 in B-Flat Minor, Op. 23: II. Andantino semplice - Prestissimo - Tempo I
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Piano Concerto No. 2 In F Minor Op 21: II. Larghetto
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Serenade For Strings In E Major, Op. 22: I. Moderato
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Clarinet Concerto In A K. 622: II. Adagio
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Violin Concerto In D Major, Op. 35: II. Canzonetta, Andante
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Concerto in D Major for Guitar and Strings, RV 93: II. Largo
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Orchestral Suite No. 3 in D Major, BWV 1068: Air
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The Well-Tempered Clavier: Prelude No. 1 in C Major, BWV 846
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Concerto in D Minor for Flute and Orchestra, Wq 22: II. Un poco andante
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Double Concerto in D Minor for Two Violins and Strings, BWV 1043: II. Largo ma non tanto
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Les contes d'Hoffmann (The Tales of Hoffmann): Barcarolle
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Le carnaval des animaux (The Carnival of the Animals): Le cygne (The Swan)
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Renaissance Chamber Orchestra and Leo Korkhin
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Ladislav Kyselák, Capella Istropolitana and Paul Kantschieder
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Concerto No. 3 in G Minor for Organ and Orchestra, HWV 291, Op. 4: III. Adagio
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Concerto No. 1 in C Major for Recorder and Strings, TWV 51:C1: III. Andante
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Concerto in G Minor for Two Cellos and Strings, RV 531: II. Largo
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Lute Suite in G Minor, BWV 995: I. Prelude
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Concerto No. 3 in G Minor for Oboe and Orchestra, HWV 287: III. Sarabande: Largo
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Concerto in C Major for Sopranino Recorder and Strings, RV 443: II. Largo
Karl Stangenberg, Munich Chamber Orchestra and Hans Stadlmeier
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Tafelmusik, Suite in B-Flat Major: V. Flaterie
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Prélude non mesure No. 13 in F Major for Harpsicord
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Sonata in C Major for Recorder and Basso Continuo, HWV 365: I. Larghetto
Karl Stangenberg, Alfred Lessing and Max Frey
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Concerto No. 13 in A Minor for Oboe and Strings, RV 463: II. Largo
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Concerto Grosso No. 11 in B-Flat Major, Op. 6: I. Preludio: Andante largo
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L'estro armonico, Op. 3 - Concerto No. 9 in D Major for Violin and Strings, RV 230: II. Larghetto
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Concerto Grosso No. 1 in D Major, Op. 6: III. Largo - Allegro
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Concerto for Oboe and Violin in B-Flat Major, R. 548: II. Largo
Pavel Popov, Renaissance Chamber Orchestra and Stanislav Gorkovenko
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Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
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Symphony No. 5 in C Minor, Op. 67 "Fate": I. Allegro con brio
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Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso - Allegro con spirito
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Nocturnes, Op. 9: No. 2, Andante in E-Flat Major
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Piano Concerto No. 3 in D Minor, Op. 30: I. Allegro ma non tanto
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String Quintet In E major Op. 11 No. 5: Minuetto In A
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Partita No. 2 in D Minor, BWV 1004: Chaconne
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Hungarian Dance No. 5 in G Minor: Allegro, Vivace
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Three Gymnopédies (1888): Gymnopédie No. 1
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Three Gymnopédies (1888): Gymnopédie No. 2
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Gesang der Geister über den Wassern (C Major), Op. 167/D.714
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Symphony No. 49 in F Minor, Hob. I:49 "La Passione": III. Minuet
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Missa In illo tempore, SV 205: II. Gloria
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Enciclopedia de la Música Clásica Vol. 3