Nicolas Dautricourt (born 1977) is a French violinist. Biography Voted « ADAMI Classical Discovery of the Year » at the Midem in Cannes, awarded the Sacem « Georges Enesco Prize », guest artist at
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 0xffce06a048a5e85c9533976bbedf79d52d2b575b1520ad9cbd84287937af800c. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c45b7827-7184-4d7b-9465-494384a86758.json and https://artists.proofprofile.net/proofs/artist/c45b7827-7184-4d7b-9465-494384a86758.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Ropartz: Violin Sonata No. 2 - Sonatine for Flute and Piano - Cello Sonata No. 2
Benjamin Godard: Intégrale des Sonates pour Violon et Piano
Cello Fundamento 7 - Après Un Rêve (Live Concert)
Music@Menlo, Around Dvořák, Vol. 5 (Live)
Music@Menlo Live, Russian Reflections, Vol. 1
Music@Menlo Live, Russian Reflections, Vol. 2
Elgar: Violin Concerto & Salut d'amour - Delius: Suite
Violin Concerto in B Minor, Op. 61: I. Allegro
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xca87f86be3731920677d99e3f424454def3188670b27710eb327e918b8e2de21. 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/NLA460915521 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116f6a93cc833f00da4a6ac22b290dc1f7d9dd4d758ca51447a0e33341ecd26c. 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/NLA460915524 — a six-check JSON result.
Suite for Violin and Orchestra (Arr. for Violin, Piano and String Quartet by Frédéric Chaslin): III. Elégie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec4c49aaf3d2a5c1cec277decf2dbc051473cbaba0c34c6df1361f54d406752. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA460915527 — a six-check JSON result.
J.S. Bach: 6 Sonatas for Violin and Piano, BWV 1014-1019
Bach: 6 Sonatas for Violin and Piano, BWV 1014-1019
Mache dich, mein Geist, bereit, BWV 115: II. Aria (Arr. for Violin and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb42158ef34e8771cb128a5d1613f4ec958021f471330c6005daf883b0bb1ad6. 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/FR3Z51700559 — a six-check JSON result.
Sonata for Violin and Piano in B Minor, BWV 1014: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee4dee2a8dba5c54dee214c5501da918528b23cbeb2f36e1dc5b0ddc16a74ec. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FR3Z51700560 — a six-check JSON result.
Sonata for Violin and Piano in C Minor, BWV 1017: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe754f4504d6650c4687d2f3c0a5878ec815f06bb20ccb65ed5b17ac22c945ccb. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FR3Z51700573 — a six-check JSON result.
Sonata for Violin and Piano in B Minor, BWV 1014: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7590e6b9955d2491752f04ac2157b9cbcc3b89e11ca8493192eaffaf93a2fb. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FR3Z51700561 — a six-check JSON result.
Sonata for Violin and Piano in B Minor, BWV 1014: III. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92319040c3756249be5e8859d380f0fb554b5ed65d0664a8362444a60408fd11. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/FR3Z51700562 — a six-check JSON result.
Sonata for Violin and Piano in B Minor, BWV 1014: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc04fa38a7cb0e053f20f3c5fd3aaf52f3bc40e623ccce24a87240d9c22b9e2a. 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/FR3Z51700563 — a six-check JSON result.
Sonata for Violin and Piano in A Major, BWV 1015: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3878c972e0b6a4fd3d7c20dc6e58a8298b4a4f60f4ff7a956b20c5479a0bb9d. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/FR3Z51700565 — a six-check JSON result.
Sonata for Violin and Piano in A Major, BWV 1015: III. Andante un poco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632f2d1a4f89c0c9a83c5b23be9be07b14482b264072b9b9a709702d273675d0. 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/FR3Z51700566 — a six-check JSON result.
Sonata for Violin and Piano in E Major, BWV 1016: III. Adagio ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea86232c4e0c62364991690e3f0575cbb4e77db8b4db68aed658d2310e28af9. 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/FR3Z51700570 — a six-check JSON result.
Two Humoresques for violin and orchestra, Op. 87: I. No. 1 in D Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d90c474adfa0f307c23e055b872255b2c158ca103dc024b7d5f992c100ef8c. 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/FR3Z51500019 — a six-check JSON result.
Two Humoresques for violin and orchestra, Op. 87: II. No. 2 in D Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41336ecb995dc65266f934be9178e906741be19df52f933bfc0b9486a9375a04. 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/FR3Z51500020 — a six-check JSON result.
Four Humoresques for violin and orchestra, Op. 89: IV. No. 4 in G Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5d3903b8d9bfd38ac28150064171ff1a0584e023bfaf741dc3fc2faa3353f3. 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/FR3Z51500024 — a six-check JSON result.
Szymanowski - L'œvre Complète Pour Violon Et Piano
Delius: Suite for Violin and Orchestra: I. Pastorale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b8632e3c2cdbb6f37528918b7bea80f67cd46144025f19b5028c048c6ebbea. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA460915525 — a six-check JSON result.
Thaïs: Méditation (Arr. N. Dautricourt for Strings)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892d0dd428ef9433e949ae3c06ec6e8e83b797e333061b9c3d456f192bb71c8e. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBYDS2200058 — a six-check JSON result.
Music@Menlo, Around Dvořák, Vol. 8 (Live)
Music@Menlo, Around Dvořák, Vol. 7 (Live)
TONAL TWILIGHTS - Schoenberg Transfigurations
ヴァルター・ギーゼキング：室内楽作品全集