Arnaud Dumond is a French classical guitarist, composer and teacher. Training After having started in music as a self-taught musician, he undertook and completed higher education in classical guita
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 0xdfa79668882392d295759e329170c96d8765d334f9c51f7190e73dd82d51c5d1. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e5774f8-f0eb-49cb-83b5-63d724f953f3.json and https://artists.proofprofile.net/proofs/artist/6e5774f8-f0eb-49cb-83b5-63d724f953f3.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7a60290b7fee0b440f1c3acdf28f6bd05af30e85faba6b74d843d72ddd1b1e. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXQ832100212 — a six-check JSON result.
La Guitare D'Amerique Latine (Latin American Guitar Classics)
Works for Guitar & Recorder (Œuvres pour Guitare et Flûte à Bec)
Works for Guitar, Lute and Harpsichord (Œuvres pour Guitare Luth et Clavecin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70e183cc1942ddcbac963b678c2ade637fbd518ba6cf7818c8965d2df91c61c. 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/FRZ178504830 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee7c392f2baf5e8226e0f7562e370335f182eba72eac1d2633e6583bdecffe9. 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/FRZ178504840 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f86e184628fce21bf7d57806fef05acd0e17dc04ff191964a7abac7e095887a. 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/FRZ178504850 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07638a3d437c02144b7af3a8862902b1a7f48c38ea2351ebea1abf6a5092d73. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/FRZ178504870 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93aabf1942d225bc073f5e6daf60ee449f49a6ce8001cc9161d58523b906c1de. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRZ178504880 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9abc3dd72804785bbedae2b40d2f0753f06c455328c17017f4e5f5a01ad9cc. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ178504890 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229afb201369c04268769e80cbccdce4ab308bca8065fcc920eaba5497871807. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/FRZ178504970 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05671ef3f895110062f7fbf3037a26772b25cefe3fbafa39d7b0ce8e506b495a. 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/FRZ178504990 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4784d7f65956c86aed89b43243dc8881d2ba583eb417bb3d67bb2780d2de482. 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/FRZ178505010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffe11e7b25339e9c93e4a5c5b2db34469536eefd005de0ecb93f3c8b59753ce. 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/FRZ178505020 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeaff919878ecd3d0bd2b3597633800a848cf7a7aacd0a5e373d21722c2d9609. 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/FRZ178505030 — a six-check JSON result.
Un rêve sans importance spéciale (Concert électroacoustique)
Jusque dans l'Oubli je t'aimerai (Works for Choir & Orchestra Vol. 1)
Works for Guitar Vol. 2 (Œuvres pour Guitare Vol. 2)
Great Guitar Classics (Les grands classiques de la guitare)
Au Bout de la Nuit. Prélude 24 (Live at El Alcázar de Sevilla)
Fandingo (Live - Pour Quatuor de Guitares)
Un Jour de Nuit (Quintet à Cordes en Hommage à Beethoven - String Quintet Dedicated to Beethoven) [Live at Felletin]
S'il vous plaît compose-moi une chanson (Pour deux guitares)
Tant va au ciel (Hommage à Roland Dyens)
Cinq Hommages Francais V: Ravel (Comme un hommage) [Live at clezancy]
36 Etudes de Style: No. 1, Oiseaux de Soir
Three Piano Waltzes: Valse en Crabe (Pour Piano à Trois Mains)
Three Piano Waltzes (Trois valses pour piano)
Dumond: Concerto for Two Guitars & Strings
Concerto for Guitar & Orchestra "L'arbre aux aurores"
Roman for String Quartet and Guitar: III. Un Bal
Jardin des oliviers - Ce soir - Soyez seul for string quartet & guitar (Pour quatuor à cordes & guitare)
Plays John Dowland and Other English Traditionals
Suite Aladin: III. Tentation (Live at Limonges)
My Lady Boleyn's Complaint (Live at El Alcázar De Sevilla)
5 Hommages français: No. 5, Hommage à Ravel. Comme un hommage
Barrios Mangoré, Konstantin Bliokh & Others: Guitar Works
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbeb1cbf5ecc1a50ba98a10f23497d7076af583cc804a8ce1d6e06022bb531d2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192407607 — a six-check JSON result.