thumb|Willem de Fesch Willem de Fesch (; 1687 in Alkmaar – 3 January 1761) was a virtuoso Dutch violinist and composer. The pupil of Karel Rosier, who was a Vice-Kapellmeister at Bonn, de Fesch late
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 0xaaf4eed99f9dbb370dfb01f4712cf56cef3db23998e0324609954341aae8ea8d. Chain 2 (Bitcoin): anchored in block 953871 (2026-06-16T01:46:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/067c5fca-b829-41d9-9d05-fb4dc6741d93.json and https://artists.proofprofile.net/proofs/artist/067c5fca-b829-41d9-9d05-fb4dc6741d93.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Concerto Grosso I in G Minor, Op. 3: I. Ouverture-Grave
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 0x866a4d69f8c328d1b74a64e440767c92eb10f1058b5ee2d60675ac2edfd1fce1. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/NLY332100544 — a six-check JSON result.
Concerto Grosso I in G Minor, Op. 3: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdf32ca2febe6ce01218b071b44215b699b8c75d45139626ff51833f0a69b50. 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/NLY332100545 — a six-check JSON result.
Concerto Grosso I in G Minor, Op. 3: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f15d22c6e589701d23dba09ab49c598471477a493282a18061eb8d3a226b75. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332100546 — a six-check JSON result.
Concerto Grosso I in G Minor, Op. 3: IV. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9eb293dd35380c34b024e1eadb3b7ac4d71ec40dedca1878aa7922afe01078. 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/NLY332100547 — a six-check JSON result.
Concerto Grosso I in G Minor, Op. 3: V. Menuet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b00538902d8da1fcdbc23cea06727792db9f7f827886a5573e074f428297b1. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332100548 — a six-check JSON result.
Concerto Grosso II in D Minor, Op. 3: I. Ouverture-Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c9f2bfc8736443a148a3fee8ac4cfc9c7f29de572b27ccbeea3fb09e66170a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLY332100549 — a six-check JSON result.
Concerto Grosso II in D Minor, Op. 3: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563892dc7d3cbeca59c7d9979f0e6f347210f69ee43dcaba767461e617f0fba0. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/NLY332100550 — a six-check JSON result.
Concerto Grosso II in D Minor, Op. 3: III. Affettuoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87a383a9e66139bba8af3b20295bbd77f89979f8b4475b6f805e1f2f73cd43e. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/NLY332100551 — a six-check JSON result.
Concerto Grosso II in D Minor, Op. 3: IV. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903a215b6637cd6de650cbc31c778d54a3f1fa43b75fd4644c9f1a4dc12466a3. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/NLY332100552 — a six-check JSON result.
Concerto Grosso II in D Minor, Op. 3: V. Borea
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26ad1605f883ebbb76fedc44f2f0b08ce6f4e2e8838223daf3ed26f16a7537e. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332100553 — a six-check JSON result.
Concerto Grosso III in F Major, Op. 3: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84d9a9c93abae2ee8dc36019cb9863f75b371e472dbf7d5e06cd3fb87f86ba3. 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/NLY332100554 — a six-check JSON result.
Concerto Grosso III in F Major, Op. 3: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fc9304be78982f2bfd406d19cde56a71656a9636947d8473a420e4a345b4cc. 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/NLY332100555 — a six-check JSON result.
Concerto Grosso III in F Major, Op. 3: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0786d63a0f55f4808a63f5bef93690527487e3015015a99c332e8ec2658164bd. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/NLY332100556 — a six-check JSON result.
Concerto Grosso III in F Major, Op. 3: IV. Alla Breve
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bf565775f69ac4b9a2849e66e135e0a1769b4a482ae46c655408737f4d151e. 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/NLY332100557 — a six-check JSON result.
Concerto Grosso III in F Major, Op. 3: V. March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d971fac1e0afc2b2395e7f1e281a5ac84ea41501c3a01cd24f79c9877b784b. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332100558 — a six-check JSON result.
Concerto Grosso IV in E-Flat Major, Op. 3: II. Alle Breve
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92b14af14729b9a6611506d9a457950698b9854a132b462614bafde8817d105. 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/NLY332100560 — a six-check JSON result.
Concerto Grosso IV in E-Flat Major, Op. 3: III. Affettuoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17c0efb09e3183f5fa7f8794c9d93f622f2b80ccee21cac2716f01a603d8a01. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332100561 — a six-check JSON result.
Concerto Grosso IV in E-Flat Major, Op. 3: IV. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84c29c65d0135fafd5b4fdfb31a98ffa03ef7c5695ffbdb005720df326d0205. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/NLY332100562 — a six-check JSON result.
Concerto Grosso IV in E-Flat Major, Op. 3: V. Pastorale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130917d62dbdfda2a1043259019c2676a13c08b82d8ffccce76262346cc5b000. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332100563 — a six-check JSON result.
Concerto Grosso V in D Major, Op. 3: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ebe16a770de8dc9043daecafd8b7933d84b9d17ea975ecb6fe73caa5d1b2ed. 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/NLY332100564 — a six-check JSON result.
Concerto Grosso V in D Major, Op. 3: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ced5394a7d3f441f8eb7aecc371857affadef8701a32cdc35dd9d4917a35f8. 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/NLY332100565 — a six-check JSON result.
Concerto Grosso V in D Major, Op. 3: III. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4939ab9c937dfa4fd16ed40bdf18eb11339c10209fda6c7162c2254f5e65ad31. 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/NLY332100566 — a six-check JSON result.
Concerto Grosso V in D Major, Op. 3: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14187fa05c9b8513f4a0555740e8e4e14557564f25e466cf8d3ebd47c908f7c6. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332100567 — a six-check JSON result.
Concerto Grosso V in D Major, Op. 3: V. March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b454f9f92fdadd16ef4f8ec10e156429323dfc673f414553bff945ab658349. 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/NLY332100568 — a six-check JSON result.
Concerto Grosso Vi in F Major, Op. 3: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2178c084f4f8d87d5db88ff89c331aed25dfb56aa737845bbd0097087ace8cb0. 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/NLY332100569 — a six-check JSON result.
Concerto Grosso Vi in F Major, Op. 3: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87506d2a87cdf558911b00829d587eb99dfb9447f1e1bf38ce8d9eeef887e3c7. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NLY332100570 — a six-check JSON result.
Concerto Grosso Vi in F Major, Op. 3: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbfd5cacde62e054e637f322e171d2d5bb6a6b3b17a1483b184c66283e2e937. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332100571 — a six-check JSON result.
Concerto Grosso Vi in F Major, Op. 3: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10eccb3b4530a8f76c09b693b63ce2079ab8dc725a3b6e19c4e015e626b8829. 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/NLY332100572 — a six-check JSON result.
Concerto Grosso Vi in F Major, Op. 3: V. Menuet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f375eb6aead92fe47ccd5e5149eba9ee84fa72e1a13cee1c725251353dbd7cc. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NLY332100573 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5fe445ca2bcf30b9cc79f183ca6e919e65e6f221d0305f860c51e0205b1eb0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332100574 — a six-check JSON result.
Concerto I in G Major: II. Grave. Stacato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6976333e4e353d929783bf4fd56196f73c3133c5be43a0f9923505b43d61d2. 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/NLY332100575 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d0fa13abf4b51fc3fc6776f9dcf7c2ca643959df16c7f39ba6e4796f1895d3. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/NLY332100576 — a six-check JSON result.
Concerto II in B-Flat Major: I. Lagro Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a992737d985b53d480fe9ebcaa38d35199c3b4ca7d8bb1954d14cd6690ce91. 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/NLY332100577 — a six-check JSON result.
Concerto II in B-Flat Major: II. Da Capella. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bb22c3f83e7bc550aaaaf52cf97030be6f70d91a58486ac8432284befa9875. 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/NLY332100578 — a six-check JSON result.
Concerto II in B-Flat Major: III. Largo Affettuoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5499f0dd24ea2684226e7c753b2ee42533190647b98b7ba7730492a3814dee21. 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/NLY332100579 — a six-check JSON result.
Concerto II in B-Flat Major: IV. Allegro Moderato Staccato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4a0807ed8890732afc8544b19a86d19a77f097ca0ba7e9974afaf020f58190. 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/NLY332100580 — a six-check JSON result.
Concerto III in A Major: I. Grave-Da Capella. Canone di Palestrina-Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370b6454d6d85fd2e3f8895894b35d5ca5cea70f27df27a15a22e930b3ca41bf. 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/NLY332100581 — a six-check JSON result.
Concerto II in B-Flat Major: II. Largo Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8080ffb6ffca460826d2818d0ca542457b3b3b237a9ed1bfbf6cee7ef1ee19. 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/NLY332100582 — a six-check JSON result.
Concerto IV in G Major: II. Da Capella. Non Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f10cbb180289cae9a288da8eb190872084a76a938e360ea19edc18f7fb9792. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NLY332100585 — a six-check JSON result.
Concerto IV in G Major: III. Largo Affettuoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1104cdeba714fd2ca5c93f9ef69c0c56278ec01f854a04987750ff450ca18c6. 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/NLY332100586 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead6f9b12b01225ae66e1ee0773af24bc604997754234ba22b0f1044c154ffe8. 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/NLY332100587 — a six-check JSON result.
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Concerto V in F Minor: IV. A Tempo Giusto
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Concerto Vi in E-Flat Major: I. Affettuoso
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Teleman, Loeillet & Others: Recorder Works
Han de Vries: The Almost Last Recordings
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A Cavalier's Tour (Through Baroque Europe)
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Een Muzikale Anthologie Der Noordelijke Nederlanden
A Musical Anthology of the Northern Netherlands
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Orpheus with His Lute: Music for Shakespeare from Purcell to Arne (English Orpheus 50)
Willem De Fesch: VI Concerti Opera Quinta
Concerto in C Major: Concerto No. 5 in C Major: I. Allegro
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Cello Sonata in E Minor, RV 40: I. Largo
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Cello Sonata No. 1 in G Minor: II. Allegro
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Cello Sonata in E Minor, RV 40: II. Allegro
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Cello Sonata No. 1 in G Minor: III. Largo
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Cello Sonata in E Minor, RV 40: III. Largo
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Cello Sonata No. 1 in G Minor: IV. Prestissimo
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Cello Sonata in E Minor, RV 40: IV. Allegro
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Cello Sonata No. 1 in G Minor: V. Ricercar I
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Cello Sonata in A Minor, Op. 5 No. 6, H. 108: I. Adagio
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Cello Sonata No. 1 in G Minor: VI. Ricercar II
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Cello Sonata in A Minor, Op. 5 No. 6, H. 108: II. Allegro assai
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Cello Sonata No. 1 in G Minor: VII. Canon à due violoncelli, uno entra una battuta doppo l‘altro
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Cello Sonata in A Minor, Op. 5 No. 6, H. 108: III. Grave
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Cello Sonata No. 1 in G Minor: VIII. Ricercar VII
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Cello Sonata in A Minor, Op. 5 No. 6, H. 108: IV. Allegro
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Cello Sonata No. 1 in G Minor: IX. Ricercar VI
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Cello Sonata in B-Flat Major, RV 46: I. Largo
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Cello Sonata No. 1 in G Minor: X. Ricercar III
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Cello Sonata in B-Flat Major, RV 46: II. Allegro
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Cello Sonata in B-Flat Major, RV 46: III. Largo
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Cello Sonata No. 2 in A Major: II. Allegro
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Cello Sonata in B-Flat Major, RV 46: IV. Allegro
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Cello Sonata No. 2 in A Major: III. Largo
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Cello Sonata in C Major, Op. 5 No. 3, H. 105: I. Andante
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Cello Sonata No. 2 in A Major: IV. Presto
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Cello Sonata in C Major, Op. 5 No. 3, H. 105: II. Allegro
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Cello Sonata No. 2 in A Major: V. Ricercar IV
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Cello Sonata in C Major, Op. 5 No. 3, H. 105: III. Affetuoso
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Cello Sonata No. 2 in A Major: VI. Ricercar V
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Cello Sonata in G Minor, Op. 1 No. 4: I. Adagio
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Cello Sonata in D Minor, Op. 5 No. 2, H. 104: I. Andante
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Cello Sonata in G Minor, Op. 1 No. 4: II. Allegro
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Cello Sonata in D Minor, Op. 5 No. 2, H. 104: II. Presto
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Cello Sonata in G Minor, Op. 1 No. 4: III. Largo
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Cello Sonata in D Minor, Op. 5 No. 2, H. 104: III. Adagio
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Cello Sonata in G Minor, Op. 1 No. 4: IV. Allegro
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Cello Sonata in D Minor, Op. 5 No. 2, H. 104: IV. Allegro
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Cello Sonata in A Minor: III. Minuettos I & II
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Cello Sonata No. 1 in D Minor: II. Allegro
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Cello Sonata No. 1 in D Minor: IV. A tempo guisto
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Cello Sonata in A Minor, Op. 13 No. 6: I. Larghetto
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Cello Sonata in A Minor, Op. 13 No. 6: II. Alla breve
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Cello Sonata in A Minor, Op. 13 No. 6: III. Allegro
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Cello Music - Gabrielli, D. / Bononcini, G. / Scarlatti, A. / Fesch, W.
Willem de Fesch: Concerti Grossi & Violin Concertos
Concerto Grosso in D Major, Op. 10: No. 4
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Concerto Grosso in C Major, Op. 3: No. 1
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Concerto Grosso in E Minor, Op. 3: No. 5
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Violin Concerto in C Minor, Op. 5: No. 5
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Willem de Fesch: Seis Sonatas para Violoncello y Clavecín
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Bachianas Brasileiras: No. 5, Aria for Cello and Guitar
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Sicilienne pour violoncelle baroque et clavecin
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Sicilienne (Transcribed for Cello & Piano)
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Les Folies d'Espagne (Transcribed for Cello & Harpsichord)
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Détail pour violoncelle baroque et clavecin
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Music for the Moment: Classical Relaxation
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Underneath Your Clothes - Acoustic Cover
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Over the Rainbow (Arr. for Violin and Piano)
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Amazing Duo II: The Berlin Philharmonic Duo
Lully, De Fesch, Mozart, Bach, Rameau, Rosenmüller, Viviani, Vitali: Airs de trompette (17th and 18th Century Music for Trumpet, Trombone and Organ)
Concert pour deux violoncelles (Mono Version)