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 0xff9715a23be728fda4851f9eb22f2f7379bba400194d5cbb455bdf1d607ecab3. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0166f46d-75b2-468d-8c07-b3eb906d55d7.json and https://artists.proofprofile.net/proofs/artist/0166f46d-75b2-468d-8c07-b3eb906d55d7.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 0x0d7c81b7581deccc830538ef2f44f8101d4970f9242e50f2f215a963e3fabcfb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11909111 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6caff78d38b24df8962f7011a3bcfeb2ee1c72af3d39b6e0a2f0b9727cbbee6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11909114 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fcca436eab21b66254d5515edcee2ace85002421e24acc3d100124dc3af9440. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USSM11909115 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529efb0ffe8f6fec506d6a73d61fd04899bb2f05a5a339e143ffe9463c975270. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11909119 — a six-check JSON result.
Mi par d'udire ancora (From "Les Pêcheurs de perles")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41eb697e6255e452d310ddecb42c6ebecc0fc5bc94f8146bd2f1431a208d8a93. 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/USSM11909128 — a six-check JSON result.
Chamber Concerto in D Major, RV 93: I. Allegro giusto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6140087f12cf9216355740e6593a650094004297bf9c2b71e0da3ac8f4fb5e2f. 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/FRZ131810010 — a six-check JSON result.
Chamber Concerto in D Major, RV 93: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdcb12d8fda60c387fa4fe5ae08116e19245dda644f36a1b96abd6fa6703ca8f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131810020 — a six-check JSON result.
Chamber Concerto in D Major, RV 93: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9ee2a60c0ebdc38f07e7449fe54d32535aa4493bda96938726e151b3e985bf. 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/FRZ131810030 — a six-check JSON result.
Concerto for Mandolin No. 2 in A Minor, Op. 144: I. Maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b044704216b7d014a06bf70def5dfae49d4446eabefb9cdf1fb26f50e0834f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131810040 — a six-check JSON result.
Concerto for Mandolin No. 2 in A Minor, Op. 144: II. Largo mesto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b974f3b438b1c389ead36841b4c17330569dabdb24691f433c328ea9c8c1cc. 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/FRZ131810050 — a six-check JSON result.
Concerto for Mandolin No. 2 in A Minor, Op. 144: III. Allegro non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312d3458f6cc32ff74c50fca11f1d0bc2b27137e563ade9c6a9cf68054df1f4b. Chain 2 (Bitcoin): anchored in block 960230 (2026-07-30T08:32:18Z), 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/FRZ131810060 — a six-check JSON result.
Mandolin Concerto in C Major, RV 425: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85f917fe7fecf8e721340b031e5cb6f71b1d9e00156551bd550750fec5afed7. 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/FRZ131810070 — a six-check JSON result.
Mandolin Concerto in C Major, RV 425: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6eefeda89853f2b46c358f65432b596a5cced2285f76e53311ae81976430c89. 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/FRZ131810080 — a six-check JSON result.
Mandolin Concerto in C Major, RV 425: III. —
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3096e76e96c321dd73c7720e9445b7fe68512e35d065a281b5e50d81930a0659. 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/FRZ131810090 — a six-check JSON result.
Vivaldi: Andante from Concerto for 2 Mandolins, RV 532
Concerto for 2 Mandolins in G Major, RV 532: II. Andante
Orchestre National Du Capitole De Toulouse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bc5ccd5b2d5325ef2aa3f8086d5a47e0277d0bc7a7abe49d19854b02dd0d37. 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/FRZ132303020 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfce4947a61777f02a339b8fbbf1ea905b92bce3096d562af4245d0bd787462. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131601010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3895098bafbbdea93eee89f554c7d5b1b87e427905e481a4d99a7be4fe27dbc8. 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/FRZ131601070 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90f5f9325734e11caba0a77a31708ffcf2fb1fb6e95084e479f97cdfffe1c8b. 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/FRZ131601080 — a six-check JSON result.
Raffaele Calace (Preludes for solo mandolin) remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b9913cc44ee79c15595fcc9bb9ecb57dff03fbb552c4cf471c15bd11b462b2. 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/QZHNA2104337 — a six-check JSON result.
Andante con variazioni in D Major, WoO 44b: I. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84a9da1a956752e44103c14360623a65bad31e5447420efb5e7b7ecf17e89d9. 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/FRZ131915070 — a six-check JSON result.
A Fifth of Beethoven - Arr. by Bruno Fontaine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116240d75ce3acc248e4b04d67058a8b757a9d3a70f1267ce41fa70e17dbdd86. 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/FRZ131915170 — a six-check JSON result.
Symphony No. 7 in A Major, Op. 92: II. Allegretto - Transcr. by Hans Sitt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b763e8445c4de3ed3ff3573ded888f6740d78e0234d905e7c83457afaf62844. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131915140 — a six-check JSON result.
Sonata for Mandolin and Piano, Op. 37a: III. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8e81e9b691a92bf2bb9489b39b093609eb25b7bee023d269bd8b1eca1190c4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131915060 — a six-check JSON result.
Don Giovanni, K. 527: Deh, vieni alla finestra (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b938f73cccb613a970727bd0176d0aa67f3385bed3b9dfa681abc97c49307b. 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/FROV62024801 — a six-check JSON result.
Die Zauberflöte, K. 620: Ach, ich fühl's (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6602c8317870b6b0601285971fc295958be1cefae2778d2bfd4e6d3242c9ead. 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/FROV62024802 — a six-check JSON result.
Don Giovanni, K. 527: Dalla sua pace (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0065d155c85d649f43e818fa7469ae1f896f692e10bbbb5df24c334bd833bb7c. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FROV62024803 — a six-check JSON result.
I Capuleti e i Montecchi: Oh! Quante volte (Arr. for Cello and Orchestra by F. Chaslin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb068667b5369fbd8dbbc79ced52be24e8d3c9191d2047af0181bd49a9718ed2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FROV62024804 — a six-check JSON result.
William Tell: Fantasy on William Tell (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e1136660842cb0f9d81f9eba32ce01e127d165799098bf52ce5f05e789a3ca. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/FROV62024805 — a six-check JSON result.
L'elisir d'amore: Una furtiva lagrima (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d4d138a3321b91cf1bcf5929feb9015a5b0e6bc43ae67b61870f8848da0608. 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/FROV62024806 — a six-check JSON result.
Rigoletto: Un di, se ben rammentomi (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfd80e60915483a51275f072ae46bd544d4f5810daf53f2b418612815fbd1fe. 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/FROV62024807 — a six-check JSON result.
Un Ballo in Maschera: Morrò, ma prima in grazia (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf6347021d318d0c974e3498e10a52398516df37894dd64f754f7b7ff447979. 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/FROV62024808 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf773f37c057202544d48d323e1c9b263c496b2229641b94d722a91efe95cbe8a. 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/FROV62024809 — a six-check JSON result.
Tosca, SC. 69: E lucevan le stelle (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad80071fc2a303bb320c1049b713297a4fcca1b8eac090c7a81a2a932537413a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FROV62024810 — a six-check JSON result.
Madama Butterfly, SC 74: Un bel di vedremo (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57657aa6cef9f33a478142d5ec836fb688c4daf423ce982d9118fa1bffc564c6. 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/FROV62024811 — a six-check JSON result.
Les Contes d'Hoffmann: Fantasy on the Barcarolle (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b05af2ed7be0825532b1399f780b549e7a79d899c9803438fe51c2e1065bfe6. 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/FROV62024815 — a six-check JSON result.
La Périchole: Air de la Griserie (Arr. for Cello & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bbfa084a3ea08ceb280d5901553234a0e48f99444fbf27e6c60e92586a0df8. 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/FROV62024816 — a six-check JSON result.
Jérémy Jouve & Friends (Play Mathias Duplessy Chamber Music)
Quatuor de guitare in D Minor: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3386e97792bfbe38bbb2ce118f4987a622a5ab1854ce4cb760f05d16518908cc. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/FRP8I2100070 — a six-check JSON result.
Quatuor de guitare in D Minor: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43a6afa85f970c965680dc420d7d8d0075c8d85c646b5bf8b8cce78b3b0cd32. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRP8I2100080 — a six-check JSON result.
Quatuor de guitare in D Minor: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e849e997e76e88f6b60ba928bb6ba2524fecb2d452001748cb9b9b8154d92b. 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/FRP8I2100090 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a41ba2e771e1a1eaefbbb6786ed6b8b03e89e71cff0c77a11548609bec4209. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRP8I2100100 — a six-check JSON result.
Sonate pour guitare et violoncelle en quatre rêves: I. Rêve exalté
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d815b577ba2771a7b2325166c763f4d2b45ae3100e447a5d93f0c9585d3a61c. 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/FRP8I2100110 — a six-check JSON result.
Sonate pour guitare et violoncelle en quatre rêves: II. Rêve heureux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a8d6ee058a0774aace84516c43fa5a944a6fd2566b0c2c217a2b15c92b8937. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/FRP8I2100120 — a six-check JSON result.
Sonate pour guitare et violoncelle en quatre rêves: III. Rêve mélancolique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dc66adc4855826333aaae911a8c71374e167b788be9bc81d5abfb983bf814b. 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/FRP8I2100130 — a six-check JSON result.
Sonate pour guitare et violoncelle en quatre rêves: IV. Rêve fou
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ba8945c755b74633ead24a6307107f88cf2b061c52130651a2e96deab09d07. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/FRP8I2100140 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70296d4354ac384a7a80aa2ad43220e7245a62ff27864c1d80900e1d8dc73c4b. 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/FRP8I2100150 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36bae6b0cc3c61382139e76f8a53d1b4b9903bea670990f17eea6e891bf2d48. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/FRP8I2100160 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7320efa635e1829152bd6036572355fb0774b69a229553f326afcdbf847f72d7. 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/FRP8I2100170 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ac10540d269b5efe314c285fa59f6b6abec87f57716d86262d8f4095c18faf. 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/FRP8I2100180 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99097f8f796c49c398f87d843130e066138ca9bd9b4767d31fd866d0f28d2b46. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/FRP8I2100190 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bd1b13e79a3f53fefe3c2167643e12dc371baf3aa89efc284f529b1ff90859. 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/FRP8I2100200 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0388d65146a43aaa52d51e94d620d468981dec1fe32947b6e04174bd3b2a4566. 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/FRP8I2100210 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9239c613e66c1153127ab2ea9a5469af804a4f10919b7c6787e30a69407be1cb. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/FR6V81701761 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0252f05203949d5870ece620eb3d90642041959b42e7f1da98b083e7d2780ff2. 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/FR6V81701763 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc051391558c04c7e0ca94ad6c84ccba474f45464a33c87665ed0e04237d16157. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/FR6V81701764 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bd8b2ac1082d1f3e32cc167b01b78086f8e2602f078a23572d70748b8cb620. 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/FR6V81701765 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbf411133cafeada2fae79966446c5d093bce9323205e6a45b55764f228d5ab. 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/FR6V81701766 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd32a2944602e970c84218c1d4aeca96a9ef238895885faed47a4b49cedbc180. 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/FR6V81701767 — a six-check JSON result.
Chanter Pour Embellir Le Monde (Patrice Martineau & Fils en Trio)