thumb|A photograph of Eugène Ysaÿe Eugène-Auguste Ysaÿe (; 16 July 185812 May 1931) was a Belgian virtuoso violinist, composer, and conductor. He was regarded as "The King of the Violin", or, as his
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442d7edff86e22c118ac5eff351e780b6b54ef118b00a1261d41d193bd907c3d. 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/7500438d-733c-4be3-bede-a80bba74910b.json and https://artists.proofprofile.net/proofs/artist/7500438d-733c-4be3-bede-a80bba74910b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mendelssohn: Violin Concerto in E Minor, Op. 64, MWV O14: I. Allegro molto appassionato
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c99ff9d6cf3255b31f4f9eb3347ca56c56715067e417cef4840097dc5a78766. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628500525.
Saint-Saëns: Violin Concerto No. 3 in B Minor, Op. 61: I. Allegro non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25207b4e4f47ca0f74bbe699a657ffb774f46669ff6cd7b1bf0621a6e685520c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9401863.
Sibelius: Violin Concerto in D Minor, Op. 47: II. Adagio di molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef78e7d99e47a46b1cac15d1cfce44ea503dcbdccde5d942190b7a77e14fa8e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9100839.
Poulenc: Violin Sonata, FP 119: I. Allegro con fuoco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9914109c5e16bb6993f63f831ff9b13d0a8693ea7efea7baeb26b3593c2786b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC629100640.
Ysaÿe: Six Sonatas for solo violin, Op. 27
Violin Sonata in A Major, CFF 123: III. Recitativo-Fantasia. Ben moderato – Molto lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98864adee1c916ca7c393f89d51ab9448e346577726f5f30dd1b9e63a8d26c44. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY1920404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82e0b7dd19b55fcfb5a64c12148d9dbd43e0dd4c9dfdf75acbd63b5924e86b3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY1920401.
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
Ysaÿe: 6 Sonatas for Violin Solo, Op. 27
6 Sonatas for Violin Solo, Op. 27 / Sonata No. 1 in G Minor: I. Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2a1bb51bc6de057e8723949020385f620adc6a2264075740e4d347b28f72a9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962300361.
6 Sonatas for Violin Solo, Op. 27 / Sonata No. 1 in G Minor: II. Fugato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd0f889365f17f6419b57a0abc97de6fda3199fab8e8703e6d36953fa343bac. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962300362.
6 Sonatas for Violin Solo, Op. 27 / Sonata No. 1 in G Minor: III. Allegretto poco scherzoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278253792fbf6ff1b9ccb9ad5f37172471efd9fb1def4bb9532644db61e2dbcc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962300363.
6 Sonatas for Violin Solo, Op. 27 / Sonata No. 1 in G Minor: IV. Finale con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86737a1e9cd07f99d1e1f0165c79a0382837b33452aa4ed28cf941dec41d4844. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962300364.
6 Sonatas for Violin Solo, Op. 27 / Sonata No. 2 in A Minor: I. Obsession. Prèlude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28cea8641f76c3f51bcf012645ae644ea9a393d6f7c4fb941d5386954371635. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962300371.
6 Sonatas for Violin Solo, Op. 27 / Sonata No. 2 in A Minor: II. Malinconia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f443ac312a838d7558a0cb1f56801ab993a36655c8dd43e9c3dfb6731be785. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962300372.
6 Sonatas for Violin Solo, Op. 27 / Sonata No. 2 in A Minor: III. Danse des Ombres. Sarabande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3bd0d40cc2ae26dd31f6c6222eb9aa4b268bda85738d059834cdcfbff80d51. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962300373.
6 Sonatas for Violin Solo, Op. 27 / Sonata No. 2 in A Minor: IV. Les furies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c74018f8ab25f4d1227e93a563315d1552fcb725420bb47c4c5918a39c401f7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962300374.
6 Sonatas for Violin Solo, Op. 27: Sonata No. 3 in D Minor "Ballade"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee69cd6758e39ee4f2a6b8af8320dda4ed615e2c7b9fa1b13a90f9d1a0819dca. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962300380.
6 Sonatas for Violin Solo, Op. 27 / Sonata No. 4 in E Minor: I. Allemande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af62e97ade68df133c3c6d7fe06a2458b69e34de31ba60ef058e6b764e4d482. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962300391.
6 Sonatas for Violin Solo, Op. 27 / Sonata No. 4 in E Minor: II. Sarabande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c77a42d7181c4f2baaec223afe34968c07dc28eec4bd4078132f86bcb547f4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962300392.
6 Sonatas for Violin Solo, Op. 27 / Sonata No. 4 in E Minor: III. Finale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb441ab6f7b01ac5c06857152c948e3e5715505eef5e7375ecaf157876292833c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962300393.
6 Sonatas for Violin Solo, Op. 27 / Sonata No. 5 in G Major: I. L'Aurore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d41650d4d3c0ef86c171bbfa49a219b02525c7a295c16e91de080ce4286ae4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962300401.
6 Sonatas for Violin Solo, Op. 27 / Sonata No. 5 in G Major: II. Danse rustique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a306daee963ecb667dcc2a774401aa3e154e28ffdd081264492792d7b3a44f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962300402.
6 Sonatas for Violin Solo, Op. 27: Sonata No. 6 in E Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121ff32ff46f127650cabfded0ef157ef01cff70716bb86b08511b0a0c02cc3d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962300410.
Vieuxtemps: Cello Concertos Nos. 1 & 2 etc. (Hyperion Romantic Cello Concerto 6)
Ysaÿe: 6 Sonatas for Solo Violin, Op. 27
Rêves - Ysaÿe: Violin Concerto in E Minor, Poème Concertant
Violin Concerto in E Minor: I. Allegro appassionato non troppo vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cb3c8091d2eced1d0921681647afcf7eab0a58e8cd68510b4c3be54025c2a1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX2308711.
Eugène Ysaÿe: Complete Sonatas for Solo Violin, Op. 27
Ysaÿe on Piano - Sonatas for solo Violin (Arr. for piano by Kohei Owaki)
Eugene Ysaye: Six Sonatas for Violin Solo Op.27
Légende Norvégienne - Eugène Ysaÿe: Unknown Works and Arrangements for Violin and Piano
Sonata for Solo Violin in A Minor, Op.27, No.2: I. Obsession: Prelude (Poco Vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e50c0e4e42b6204bc9b57e902d20eda18747ebeb82e01cd895ac3824022d1a5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB462201163.
The Lyrinx Recordings (1994): Ysaÿe: Six sonates pour violon seul
Spiritus sanctus vivificans vita - Version I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492a0e73066dd2ff63233eb38f48d16e47f6cae5bed8667174879c7ec265924b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB332170901.
Three Miniatures for Solo Violin: III. Lauer Lied
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a856977f82912fb9512b8cfc117b5d9d3612a974ffaf9b7293846149cfff43. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB332170905.
Sonata No. 5 in G Major, Op. 27: I. L’Aurore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50655c0892c407fa4ea34e7d70c1d80bb948d24903a712018513ca05c35a272. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB332170906.
Sonata No. 5 in G Major, Op. 27: II. Danse rustique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d59b887af77d103b418bf3f0f7f5fcddc5c03613ae64707b5eaeafdc244486e. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB332170907.
Obsession. Ysaÿe: 6 Sonates pour violon solo, Op. 27
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0933c552428f0483097d29ec2833f27b1f54a795ce454c583faef8c04e170a96. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349402012.
Ysaÿe: Sonata for Solo Violin in A Minor, Op. 27 No. 2: IV. Les furies. Allegro furioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0548ebd3c95f4281d66f2bebafa0026ce52e5973719d505036713a3dce77af0a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349302004.
Ysaÿe: Sonata for Solo Violin in A Minor, Op. 27 No. 2: I. Obsession. Poco vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e61b45acb8aa2e23531e6f95393a3ad89dd61dc0449cf8bc786e4c95dc925f8. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349302001.
Ysaÿe: Sonata for Solo Violin in A Minor, Op. 27 No. 2: II. Malinconia. Poco lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab5fbd077f062245d1cd27dc9ae366d52587370398aa6661a7ad058d6baee4c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349302002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38c62f4ef504dede0f7f17bdd29343d82428ab9bf7f136123bf49d1d28a13a9. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349402011.
Ysaÿe. Violin Sonatas No.2, Op. 27 - No.4, Op. 27
Eugène Ysaÿe: Works for Violin and Piano, Vol. 1
Sonata No. 1 in G Minor, Op. 27 No. 1: II. Fugato: molto moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b53296315f770d6ae340f97d77ea41ab73df8ec3eab38990307ffbb45b19f1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP2100001.
Sonata No. 1 in G Minor, Op. 27 No. 1: III. Allegretto poco scherzoso: Amabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113aa2c9d8cbcc2bb6d3ae4422cf85560d547fc5deebf23696be8902a6527982. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP2100002.
Sonata No. 2 in A Minor, Op. 27 No. 2: IV. "Les Furies": Allegro furioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c040a191b92207a46d39967ee28878e4ae810ab86c9b9919361bd6398d8fec. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP2100007.
Sonata No.3 in D Minor, Op. 27 No. 3 : Ballade: Lento molto sostenuto - Allegro in tempo giusto e con bravura
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd31a4b9c17d7b6bf46f1692c483dba975a277ed86408889dce0dd074a5da16. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP2100008.
Sonata No. 1 in G Minor, Op. 27 No. 1: I. Grave: lento assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb6d355cb3e237de247b82fa0c976f24d39d83dc7204495679547e4a1d6310c. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP2100000.
Sonata No. 1 in G Minor, Op. 27 No. 1: IV. Finale con brio: Allegro fermo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec37635fda7f438af6c26ca53be6c31a6c666feed1ff950927dd2abef2428d38. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP2100003.
Sonata No. 2 in A Minor, Op. 27 No. 2: I. "Obession" (Prelude):Poco vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef7f7a556880ec1732a45f38d2e187ec9b4b16f8a0964445cc6f69d00508059. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP2100004.
Sonata No. 2 in A Minor, Op. 27 No. 2: II."Malinconia": Poco lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a595e6d9497a79eaa5f1e4f876c5795246caf187cfcc982a4e5241f424e6d5. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP2100005.
Sonata No. 2 in A Minor, Op. 27 No. 2: III. "Danse des ombres": (Sarabande): Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4516db54416557513844d351afaacce4b37028e49163ad6d9ff1f391f37f1a42. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP2100006.
Sonata No. 4 in E Minor, Op. 27 No. 4 : I. Allemende: Lento maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bc2a53a3dda5a235713e5939c7023d58a22289d3dc682672fe51c3b5334017. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP2100009.
Sonata No. 4 in E Minor, Op. 27 No. 4 : II. Sarabande: Quasi lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd210d5bdec2a8248e3027a3b13a03338a66042fd88d8117b46417d2fb174774d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP2100010.
Sonata No. 4 in E Minor, Op. 27 No. 4 : III. Finale: Presto ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4717638270fddaeae291c71977c3ec2fe517cce7b2b1d0299a2deb61a0145369. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP2100011.
Sonata No. 5 in G Major, Op. 27 No. 5 : I. "L'Aurore": Lento assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9525e313ae4f0b769f300e4204e0b7726f8002a42beeb50f33d791aedb2829d7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP2100012.
Sonata No. 5 in G Major, Op. 27 No. 5 : II. Danse rustique: Allegro giocoso molto moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ecd50a0a6a68ae6389a384886c3bc475f53460cf1b1f58c65d6f81a65e00f4. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP2100013.
Sonata No. 6 in E Major, Op. 27 No. 6 : Allegro giusto non troppo vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c43204601fa425a3b3c94e57fe13d890f6eb558d543cb5ff93c4f278dae1916. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP2100014.
Eugène Ysaÿe: 6 Sonatas for Solo Violin, Op. 27
Ysaÿe: 6 Sonatas for Solo Violin, Op. 27 & Exil, Op. 25
Ysaÿe: 6 Violin Sonatas, Op. 27 & Etude poème, Op. 9
Ysaÿe: Intégrale des sonates pour violon
Portraits - Eugène Ysaÿe: 6 Sonatas for Solo Violin, Op. 27
Telemann: Canon-Sonata for Two Violins in G Major, TWV 40:118: I. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e67d629e8fec1c40f8a2d21ea67138e76ed9989e96ffe0e89150fe914b5fe7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ111400363.
Telemann: Canon-Sonata for Two Violins in G Major, TWV 40:118: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b21e929565cf6bb820008ef66031592c3109932902da3389125a9bac485d1ce. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ111400364.
Telemann: Canon-Sonata for Two Violins in G Major, TWV 40:118: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb233e940fab4f16b796b1a815538a975f184ac8c3036988d0b8eb23c123ea152. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ111400365.
Brahms: Violin Sonata No. 1 in G Major, Op. 78: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470733d3f367bd226f70df325c00c8f41ddd42ed36ca8fec13c96be919ea908a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0502039.
Leclair: Sonata for Two Violins in G Major, Op. 3 No. 1: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215397bec97d9cf67241e4d3f2128f9577476266eb3cf679e27c0734bfd31613. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ111400360.
Leclair: Sonata for Two Violins in G Major, Op. 3 No. 1: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49dc8b1054eeb02655199a967cb291072945a6fd927ae4c1534823b14429fa24. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ111400362.
Locatelli / Arr. Ysaÿe: Violin Sonata in F Minor, Op. 6 No. 7 "At the Tomb": III. Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0819f042d74dac99978e0ee6503c22e1dcd803331363d152605e91f3b744c9c8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ111400355.
Leclair: Sonata for Two Violins in C Major, Op. 3 No. 3: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44ade69470ff79360e8601212e9d47a0b144e32b025d0cd865a754a87b09319. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ111400359.
Brahms: Violin Sonata No. 2 in A Major, Op. 100: II. Andante tranquillo - Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51dfd37ac4ccbcbf70d2d335749b7b6ff1a53ab0b56d148a2a18a2685a0380fc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0502043.
Ysaÿe: Sonata for Two Violins in A Minor: I. Poco lento maestoso - Quasi moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4e06d39be52be76df72d6c43e796a51b9a6f3e9be6823e84c20b16318aafa7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ111400366.
Ysaÿe: Sonata for Two Violins in A Minor: II. Allegretto poco lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bd980d1210952b0a307bc3cec6ae340002aca28865551a614d8ed5973eb1c6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ111400367.
Ysaÿe: Sonata for Two Violins in A Minor: III. Allegro vivo e con fuoco - Moderato amabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8207d231d96d95b89a5bbc57c69f5533ab5c228fb5ce79775a886be492ad950a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ111400368.
Marc Bouchkov & Georgiy Dubko - harmonia nova #2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecc47f2f0ca45d72890af1764dd40bcfcd44cd529ddd88f32ee7ac0afa146f9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1716080.