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 0x609ad27c6bd12c793466a6dc5fb6e0c2f67f1466804ee71a3d2a31c51e39e9a0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa637c74-d1b5-4462-87fc-cfb90b6c8153.json and https://artists.proofprofile.net/proofs/artist/aa637c74-d1b5-4462-87fc-cfb90b6c8153.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Violin Sonata No. 1 in D Major, Op. 5: I. Grave - 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 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 0x80d506a91c7cfdaf743d1a07614a572929b12a35026c2ce9d2458109e6c98b3b. 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/NLY331802740 — a six-check JSON result.
Violin Sonata No. 1 in D Major, Op. 5: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae14d56c7eebcc2088a5042ebf11bf310b6c5f983be25b2017140d63639f668. 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/NLY331802741 — a six-check JSON result.
Violin Sonata No. 1 in D Major, Op. 5: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e2e2a152854b6d17008acc92a85dc3662829d0b25a29f9ff07ac234989748e. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/NLY331802742 — a six-check JSON result.
Violin Sonata No. 1 in D Major, Op. 5: IV. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048c50b84288c36bf6ca6d0744cc9d5f2c5532b793f61cfd0cabeae8d2d7f217. 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/NLY331802743 — a six-check JSON result.
Violin Sonata No. 1 in D Major, Op. 5: V. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e0a98c3a9e44a66a04527259bb06c995a65a99c5f6803f096fa8d497cd7262. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331802744 — a six-check JSON result.
Violin Sonata No. 2 in B-Flat Major, Op. 5: I. Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad5098ed82c18202ae0c6d3951fea9996ec7e4fd6dd86c9cc1a26bf460bb45a. 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/NLY331802745 — a six-check JSON result.
Violin Sonata No. 2 in B-Flat Major, Op. 5: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652d55c189632108acc1b0fcae5df6a612bf2d07284aeb116fa307327e514c2e. 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/NLY331802746 — a six-check JSON result.
Violin Sonata No. 2 in B-Flat Major, Op. 5: III. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328cce8d51c1283e22c8d448e0207b99befa7bc766d2c733c69462f14e283bb9. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/NLY331802747 — a six-check JSON result.
Violin Sonata No. 2 in B-Flat Major, Op. 5: IV. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7d67875f177abaab204a8413e222f0ecb7239d6b87751db6755df0df59216f. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NLY331802748 — a six-check JSON result.
Violin Sonata No. 2 in B-Flat Major, Op. 5: V. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5557ee596e3b5f4d3ce8aa5f1f7cb8fd8b7803a7764e3bff55498b94dc92c4a4. 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/NLY331802749 — a six-check JSON result.
Violin Sonata No. 3 in C Major, Op. 5: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d7f8f2bfbcbb1be3075cb7a090a34132f7f71aae09f7a1c9f35936be6388c7. 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/NLY331802750 — a six-check JSON result.
Violin Sonata No. 3 in C Major, Op. 5: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbc7f137ed5393a3bf142aba515473aa0139ac446778cd39f349783bacb26b6. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331802751 — a six-check JSON result.
Violin Sonata No. 3 in C Major, Op. 5: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eab5a5c99ccede95c8de7c69242555d907ab0355e1ae46b8b4fa510cc225055. 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/NLY331802752 — a six-check JSON result.
Violin Sonata No. 3 in C Major, Op. 5: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ccae10390a90e030634d06ab24b860ffc4a9375ac5579a9c91d0faec25d67e. 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/NLY331802753 — a six-check JSON result.
Violin Sonata No. 3 in C Major, Op. 5: V. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c6bc5b3150870f9be9822f8ea9a6eff4e687df682382b9408b8052e001a23c. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/NLY331802754 — a six-check JSON result.
Violin Sonata No. 4 in F Major, Op. 5: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79c507f705634a8b989d6e314d52bcb92169ae5fa50e1bac5ffdf93d0f35d28. 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/NLY331802755 — a six-check JSON result.
Violin Sonata No. 4 in F Major, Op. 5: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a99d72a59281840be4a553b4b46c476662a1ba4e3491c8e64ab76649d0fa14f. 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/NLY331802756 — a six-check JSON result.
Violin Sonata No. 4 in F Major, Op. 5: III. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238e1ac6da7c214ffd479a4158fff5e55999c894e61357d326bb2f647b021b02. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/NLY331802757 — a six-check JSON result.
Violin Sonata No. 4 in F Major, Op. 5: IV. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0184635bb44ac3716f73f4f172db7a4e0678b158f11d868a147d35889636a8c2. 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/NLY331802758 — a six-check JSON result.
Violin Sonata No. 4 in F Major, Op. 5: V. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510502b44a7062c0d365223de0e23071bb2c938b3db9a7ecf72a926a584cc792. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/NLY331802759 — a six-check JSON result.
Violin Sonata No. 5 in G Minor, Op. 5: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc01a5dd0f8afdefb0933a1cd52f730e7ba4af8a827cd5d406e99e5586dd4967. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331802760 — a six-check JSON result.
Violin Sonata No. 5 in G Minor, Op. 5: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42efc9fce3c6db78ba7894ee0d07906f2b26c15e92257b51538e54861f01692. 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/NLY331802762 — a six-check JSON result.
Violin Sonata No. 5 in G Minor, Op. 5: IV. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700862bbcc52ecfa2a5a302a768c60dd1bcf9450cd1ec2516173bdc26210eb1b. 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/NLY331802763 — a six-check JSON result.
Violin Sonata No. 5 in G Minor, Op. 5: V. Giga. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a4c312e45224734522e051675f25713ad98bf746aa90b7ec87c5167075ced3. 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/NLY331802764 — a six-check JSON result.
Violin Sonata No. 6 in A Major, Op. 5: I. Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981cd9da16ec356a5b6b4d81f4cdfd1d237b54957ebced5433e32161f39efcff. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/NLY331802765 — a six-check JSON result.
Violin Sonata No. 6 in A Major, Op. 5: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2ac715da041f61b19d1be9b6939110fb234668f6ef7622403d308945ff30a3. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NLY331802766 — a six-check JSON result.
Violin Sonata No. 6 in A Major, Op. 5: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8ff118db1926abb4ede2e4e2a7e2649843a96eaa35fdc269f357b837376763. 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/NLY331802767 — a six-check JSON result.
Violin Sonata No. 6 in A Major, Op. 5: IV. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0016098a14e84e9db3e6b490710cb13ee80ba0fd6ab07df21e3018e3943d51ef. 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/NLY331802768 — a six-check JSON result.
Violin Sonata No. 6 in A Major, Op. 5: V. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1cc753491a5e025a25b300a2f6cb8e20c1bbe636175c2b797b4adfe9974d4cc. 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/NLY331802769 — a six-check JSON result.
Violin Sonata No. 7 in D Minor, Op. 5: I. Preludio. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33f62b2630ff17df82c23fb471bdd57dc899b80d3f9491c94213dced8ab7191. 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/NLY331802770 — a six-check JSON result.
Violin Sonata No. 7 in D Minor, Op. 5: II. Corrente. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f96ae7677f18c02da4a8acbf3ed5565ec79b2e30846a37aeaf566f2f2fc8863. 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/NLY331802771 — a six-check JSON result.
Violin Sonata No. 7 in D Minor, Op. 5: III. Sarabande. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9282b71c0a9343a3f2ff2a6042ff3e093d335d00a10b52cd8b3752df342637c. 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/NLY331802772 — a six-check JSON result.
Violin Sonata No. 7 in D Minor, Op. 5: IV. Giga. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a95de3a2d9cd039186ad901359eec56fc5db713d2a8f0cc9a57bdc616284f1c. 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/NLY331802773 — a six-check JSON result.
Violin Sonata No. 8 in E Minor, Op. 5: I. Preludio. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7283887afc74d4a99973e96443930e82273096584e1136c1eb64e2bbb5b6184d. 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/NLY331802774 — a six-check JSON result.
Violin Sonata No. 8 in E Minor, Op. 5: II. Allemanda. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cbda48a89cc0f7f558277d64a2ea9c04c1c7d11b82120d8c6fdffd2b1ebec1. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NLY331802775 — a six-check JSON result.
Violin Sonata No. 8 in E Minor, Op. 5: III. Sarabanda. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac70f5a26f1f86ab25ed0e774a80ce253588ea877a9b3f2d899dd4f8c3a1627. 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/NLY331802776 — a six-check JSON result.
Violin Sonata No. 8 in E Minor, Op. 5: IV. Giga. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eea73f6df7d3046f62cd256f3f6cd597353f7939022042c1ce52668e056f130. 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/NLY331802777 — a six-check JSON result.
Violin Sonata No. 9 in A Major, Op. 5: I. Preludio. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb22b2c000683594a723ca736237e222dcf7628c9a3b4adce64ab08b0111a371. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331802778 — a six-check JSON result.
Violin Sonata No. 9 in A Major, Op. 5: II. Giga. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed60b4354ba09adeafab449c50c1cd867daf90103a2474ef6efccf910da3be1. 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/NLY331802779 — a six-check JSON result.
Violin Sonata No. 9 in A Major, Op. 5: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25dafbfb3a6de4b9cb0c2d6721d5917da52388af9bc06f66b99685795205ea0c. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/NLY331802780 — a six-check JSON result.
Violin Sonata No. 9 in A Major, Op. 5: IV. Tempo di gavotte. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1202d6bdaf28223529df1dd893c9269d550dc7f90aebd2782a23ac2e258c14a6. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NLY331802781 — a six-check JSON result.
Violin Sonata No. 10 in F Major, Op. 5: I. Preludio. Adagio
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Violin Sonata No. 10 in F Major, Op. 5: II. Allemanda. Allegro
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Violin Sonata No. 10 in F Major, Op. 5: III. Sarabanda. Largo
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Violin Sonata No. 10 in F Major, Op. 5: IV. Gavotta. Allegro
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Violin Sonata No. 10 in F Major, Op. 5: V. Giga. Allegro
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Violin Sonata No. 11 in E Major, Op. 5: I. Preludio. Adagio
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Violin Sonata No. 11 in E Major, Op. 5: II. Allegro
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Violin Sonata No. 11 in E Major, Op. 5: III. Adagio
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Sonata No. 1 in F Major, Op. 1: III. Adagio
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Sonata No. 1 in F Major, Op. 1: I. Grave
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Sonata No. 1 in F Major, Op. 1: II. Allegro
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Sonata No. 2 in E Minor, Op. 1: I. Grave
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Sonata No. 1 in F Major, Op. 1: IV. Allegro
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Sonata No. 2 in E Minor, Op. 1: II. Vivace
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Pausanius, Z. 585 "The Betrayer of his Country": No. 2. My Dearest, My Fairest (Arr. with Trumpet, Trombone, Cello and Theorbo by Wim van Hasselt and Jörgen van Rijen)
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Timon of Athens, Z. 632: No. 2. Duet, "Hark! how the songsters of the grove" (Arr. with Trumpet, Trombone, Two Recorders, Cello, Theorbo and Organ by Wim van Hasselt and Jörgen van Rijen)
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