thumb|300px|Salvatore Accardo playing during his prize-giving of "Premio Leonardo" and "Qualità Italia", Palazzo del Quirinale, Roma (Italy), 21/9/2000 Salvatore Accardo (; Knight Grand Cross born 26
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 0x5d9bb3aea01ac9218801ff01336692fb0e08eabd3ec736d56a614fc9aedfd53f. 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/4c52e671-7ed2-419b-8662-8bfe91c89773.json and https://artists.proofprofile.net/proofs/artist/4c52e671-7ed2-419b-8662-8bfe91c89773.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Edvard Grieg: Sonatas for Violin and Piano Nos. 1, 2 & 3
Beethoven: Symphony No. 7, Op. 92 & Triple Concerto, Op. 56 (Live)
Mozart: Sonatas for Violin and Piano KV378, 302, 304, 403
Mozart: Sonatas for Violin and Piano KV 526, 296, 305
Mozart: Sonatas for Violin and Piano KV 481, 303 - Variations KV 359, 360
Mozart: Sonatas for Violin and Piano KV 454, 301, 306
Mozart: Sonatas for Violin and Piano KV 379, 380, 547
Mozart: Sonatas for Violin and Piano KV 376 ,377, 372, 402, 404
Pablo de Sarasate (Spanish Dances for Violin and Piano)
Spanish Dances, Op. 21: No. 1, Malagueña
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 0xe6089b1ce080473b188543768c5e8b33a162905fc7244e8a9b841b35b3f46042. 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/ITV702021801 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fa850f36897a006acc880f8709ef91f937424125bee83284832b895589daa7. 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/ITV702021802 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85aee59f344bdcc899221f31863707d94f5dee76692a3313ba1ffc5fb84ff88a. 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/ITV702021807 — a six-check JSON result.
Debussy, Ravel - Music for Violin and Piano
Suite bergamasque, L. 75: III. Claire de lune
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a575d0a7944b5a3aa5446c179e0afb6f639768853e6be1d21c5b8149575e90. 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/ITV702021904 — a six-check JSON result.
Sibelius: Violin Concerto; Six Humoresques
Violin Concerto In D Minor, Op. 47: 1. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd681cd389d9e6f3800b89c37130064562e2767e47545adbf813b1200e4bd19. 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/NLA507801501 — a six-check JSON result.
6 Humoresques for Violin and Orchestra: No. 6, Op. 89, No. 4 - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f92dc8743292fcd3fb87db678d83c0c8b19bed3dbf087f167ad8406cd621c96. 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/NLA507801509 — a six-check JSON result.
Salvatore Accardo - 1965 Recording Session vol.2
Salvatore Accardo - 1965 Recording Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4eb9148c295e8ab5a3708bcf2ca8d7a71f15d68fb2435853a9e1f166aae13a. 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/ITB006570637 — a six-check JSON result.
Fulvio Pierangelini racconta Le quattro stagioni
Ludwig van Beethoven: Concerto per violino e orchestra, Op. 61
Concerto per violino e orchestra in D Major, Op. 61: I. Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a67bf91b790718f497f2246fe9d835ac768f646f263654652e7549a55fc85ec. 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/ITV701514301 — a six-check JSON result.
Concerto per violino e orchestra in D Major, Op. 61: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3042c7ecadbb39b361fcc506ae80fe0b7278fb95d7e17bf24424f8b94582fc. 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/ITV701514302 — a six-check JSON result.
Concerto per violino e orchestra in D Major, Op. 61: III. Rondo. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6451ab6483223b5c4112cb19d57046b0e407e7e2ce5502e1e8e6ad52f4783219. 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/ITV701514303 — a six-check JSON result.
Romanza per violino e orchestra in F Major, Op. 50
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa678e47e0ed947782a95acfca7e5b80587a5d486a2ffd29c80b22579ef049886. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITV701514304 — a six-check JSON result.
Schubert: Fantasy, Op. 159 & Duo Sonata, Op. 162
Clásicos del Milenio, Las Cuatro Estaciones
Concierto No. 1 en E Major, Op. 8, RV. 269, La Primavera: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9496143f82f0c8354bb6699921d0527f8fe1069573d242d562a1fe68d2ac51ae. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QMFME1479359 — a six-check JSON result.
Concierto No. 2 en G Minor, Op. 8, RV. 315, El Verano: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60eaaa20a690ea5f8a6593c18c72849b5e97d26d6ce113738e1a11ca93dfb88a. 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/QMFME1479364 — a six-check JSON result.
Concierto No. 3 en F Major, Op. 8, RV. 293, El Otoño: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301ff86af919632f65018963d50c4ab09cebb65bb05b5ad6208fad443d7675d3. 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/QMFME1479365 — a six-check JSON result.
Concierto No. 4 en F Minor, Op. 8, RV. 297, El Invierno: I. Allegro non molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13b9ba6d3c0f4cdf412187d1865bc7deff16c021acafe3ca3290cf1fb1cec6e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME1479368 — a six-check JSON result.
20th Century Britain: Elgar, Britten & Vaughan Williams
The Young Salvatore Accardo, Vol. 2 (1962)
Romanza per violino e orchestra No. 2 in F Major, Op. 50
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c2d7b682f4a20cccd9e50c82d62854c0c8c428c49c0cbe6bfc262cd5e0cbcb. 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/ITV701212201 — a six-check JSON result.
Cantabile for Violin and Guitar - Arranged for Violin and Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471c452ffbac46ee6e86a353198faa124d39ba0d2a0e26891bf7a741bc2242d1. 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/ITV701212204 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6df1e96873ae5169d35fca28e512534bec9c4e463b2bb1e7fcc0c1fa9957c35. 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/ITV701212205 — a six-check JSON result.
Bernstein: Serenade & Penderecki: Concerto per violino
Bruch: Violin Concertos No.1, Op.26, No.2, Op.44
Wolfgang Amadeus Mozart: Violin Concertos, K. 207, K. 211, K. 218 & Rondeau, K. 373
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4587380f17950b27dccdcb6650dacb415433c4477b436807ec77312f8c3ede4. 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/ITV701108201 — a six-check JSON result.
Walton: Symphony No. 1; Violin Concerto in B minor
Concerto in Mi Maggiore, La Primavera: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7831bcdcfb635ff7cb1acb322b599e6b3006b0fc351cd9abe5532060ca90a6b6. 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/ITV700906501 — a six-check JSON result.
Concerto in Mi Maggiore, La Primavera: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67a9a9dee3af7f5a2357a51c9f348e4c69bfc23eb0014448cb8135464b18284. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ITV700906502 — a six-check JSON result.
Concerto in Mi Maggiore, La Primavera: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d525067746fe943e295e19ee6a4e9d207d715d3da433e6606fbe143d0c08cf3. 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/ITV700906503 — a six-check JSON result.
Concerto in Sol Minore, L'Estate: I. Allegro non molto - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fff389e26111a13bf0962191de120a283c0eb6d88676fbed67f7382ab7c2d8a. 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/ITV700906504 — a six-check JSON result.
Concerto in Sol Minore, L'Estate: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175b790e3393189034d5a47fb43db765739c1d1ebcd8277cc0964da664f5acbf. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITV700906505 — a six-check JSON result.
Concerto in Sol Minore, L'Estate: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e039ac5a4fd47a8c84238ee4d3d4594ecc26cbd2c52958b7f6c2b7cb805a787. 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/ITV700906506 — a six-check JSON result.
Concerto in Fa Maggiore, L'Autunno: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf881f05b6bb60a5a3c775766656f00d503124dbd6c4b81a4a63db4cd39965353. 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/ITV700906507 — a six-check JSON result.
Concerto in Fa Maggiore, L'Autunno: II. Adagio molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d28824c1303c4ab51ce93d9a1ef5bc42298c81cfbaa14a1cb88c011d777791a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITV700906508 — a six-check JSON result.
Concerto in Fa Maggiore, L'Autunno: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d44673828093a696587f4fd1d9d4edcbd33f1db961012057b68456838829ce6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITV700906509 — a six-check JSON result.
Concerto in Fa Minore, L'Inverno: I. Allegro non molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef619f431deeca857b0ef8e943c744d11cb3344530953cdf32f0a6d71f599f6. 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/ITV700906510 — a six-check JSON result.
Concerto in Fa Minore, L'Inverno: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f94481bcc4d18afafdccd9bf48191decee7e8eb3ea0e7907679b23adff61eb8. 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/ITV700906511 — a six-check JSON result.
Concerto in Fa Minore, L'Inverno: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cd64baa019f05f644d9e3e7901b6c668d34cc32008af024a3f92f2474eaff6. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/ITV700906512 — a six-check JSON result.
Concerto in Re Min. per due violini, archi e continuo, F I n 100: I. Allegro non molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67e9cd4ad0d16b74717442f7e83f8c0b0de7a57f8cecc971be7887ef66be181. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/ITV700906513 — a six-check JSON result.
Concerto in Re Min. per due violini, archi e continuo, F I n 100: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8e696a2b43b8ae47a9c33efbe50a577c72430882c007cfc57e1914c033ae5b. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/ITV700906514 — a six-check JSON result.
Concerto in Re Min. per due violini, archi e continuo, F I n 100: III. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdd7c28f2cc84b366ae614e61f92991f6b9d359cb1eb13aed9604bd78de4a63. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ITV700906515 — a six-check JSON result.
Concerto in Si bem. Mag. Per violino, violoncello, archi e continuo, F IV n2: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc95f6bfb2a12bdf237502f50ce3130736ff15ca3ca1943178d4e6b468f9f21. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/ITV700906516 — a six-check JSON result.
Concerto in Si bem. Mag. Per violino, violoncello, archi e continuo, F IV n2: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9bb6bbb64bfa27481cfc2810167875841006bf366815f4a7aaef790ed0efbe. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITV700906517 — a six-check JSON result.
Concerto in Si bem. Mag. Per violino, violoncello, archi e continuo, F IV n2: III. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc972d81e7ae6036569454bbd357ac828e83caba60591bc9785e582da3a1b287. 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/ITV700906518 — a six-check JSON result.
Verdi, G.: String Quartet / Borodin, A.: String Quartet No. 2
Johann Sebastian Bach : Sonate No. 1-3 - Partite No. 1-3 per violino solo
Concerto per la donazione alla Città di Cremona del violino Stradivari-Vesuvio, 1727 (Live Version)
Concerto in La maggiore, D. 96: I. Allegro - Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b39b1d4d4962bf6da3d8dcaaf859f0320d3d316b949045aaa1edd6d44135518. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/ITV700004001 — a six-check JSON result.
Concerto in La maggiore, D. 96: II. Largo - Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f81be23286ed2a6cafc2cc68654de5d473b060b258dd7634ce42ee619b452e. 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/ITV700004002 — a six-check JSON result.
Concerto in La maggiore, D. 96: III. Presto - Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5071910776fb4947395b238dc47bc03753748da3918d214f0a4631040db9f26d. 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/ITV700004003 — a six-check JSON result.
Concerto in La maggiore, D. 96: II bis. Largo andante - Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670bd864e0b214bc6094cf994a270829adf9d3b3a0ba92d3cf7a3ccd8c465ed5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITV700004004 — a six-check JSON result.
Pietro Antonio Locatelli: Concerto in Re maggiore - Labirinto Armonico, Op. 3, No. 12: 1. Allegro, Capriccio - Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117d64cc7215f3f234f1fdd9f5b472633bab70ea6723869e0ff2f5a6f03fcfdd. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITV700004005 — a six-check JSON result.
Pietro Antonio Locatelli: Concerto in Re maggiore - Labirinto Armonico, Op. 3, No. 12: 2. Largo, Presto, Adagio - Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5450238d852a5253f3315cccac157becb5bb14ae695070cd496aad30f4e9e86. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITV700004006 — a six-check JSON result.
Pietro Antonio Locatelli: Concerto in Re maggiore - Labirinto Armonico, Op. 3, No. 12: 3. Allegro, Capriccio - Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ed3f06243550bcba46d6a5f03f82e2d23d41b63ed00b17bdde118112bad91a. 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/ITV700004007 — a six-check JSON result.
Astor Piazzolla: Le grand Tango - Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45881a6d06cb6e330e91e0cd3a785a9967cc34781f91719ea39b032138fb0fc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITV700004008 — a six-check JSON result.
Niccolò Paganini: La campanella - Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86845894508dcfcada37455a25b2c8bd7f8f813737866867bac0741e69fc815. 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/ITV700004009 — a six-check JSON result.
Niccolò Paganini: Cantabile - Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fe5b4cfffb1108433c3558afa03e22454a312e56032e6463d83318341f4629. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITV700004010 — a six-check JSON result.
Ludwig van Beethoven : Sonata Op. 47, Op. 24
Sonata in La maggiore, Op. 47 - A Kreutzer. Adagio sostenuto, Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2bb990d2646ee08f900cc90bf4dc892dfcd6a7485d56ced2006c3344d0aa03. 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/ITV700906001 — a six-check JSON result.
Ginastera: Violin Concerto / Bartok: Violin Sonata
Oblivion, per solista e orchestra d'archi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8837433da3757a1c9a5f23443b533921277aaf8935b89125ba50ac6ef032b31. 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/ITV700201901 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446eda0a8caa0f964f0a433e97b5203ebd1d577cd23d2ec7bd52b83d7988a3e0. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITV700201902 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bcd65a072891fc49adb5f3e97ce435143a751209f2726576737f8dad939246. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/ITV700201903 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c76e56fe2a3c3226ece23c75540eb3df2583d82e39255953612749d19f61cde. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/ITV700201904 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562b67a370cc5fc1d81d2086cf7debf6a0ed9a07267b14522d3f07d1645d9b52. 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/ITV700201905 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72b7b4f2e56957e6e799b7f66dd14bb4027234008cb4c58b88759392c5ea2f3. 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/ITV700201906 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd215b53c1f2977d9b9b434b42e6d15bd21fd0e66f17382f8f9b35f842d1e8358. 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/ITV700201907 — a six-check JSON result.
Rossini: Sonate a quattro / Bottesini: Gran Duo
Sonata a quattro No. 1 in G Major: 1. Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f7677ad76cfe11d2b66bc0463dd5a471ffef07bdcee5d415d89c4b51166cdd. 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/NLA507719301 — a six-check JSON result.
Trio Sonata in E flat for 2 Violins and Continuo, Op. 1/7 , RV 65: 4. Giga (Presto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb92a0bc6609883b08baa5c7e4689b431c36e257e341b766975a5a972da86f0. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507615248 — a six-check JSON result.
Bach, JS: Violin Concerto No. 2 in E Major, BWV 1042: I. Allegro
The History of Classical Music: The Best of the Baroque Period
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c315cb6db4fefc9607dcca875a9aabedec29bb2136154a2ad8c896c31765e9f. 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/GBAYC8200230 — a six-check JSON result.
Trio Sonata in F for 2 Violins and Continuo, Op. 1/5 , RV 69: 4. Gavotta (Presto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73464e9d50bd6b187b4258013624b919df5ac753e33a0d90216efa462274190. 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/NLA507615240 — a six-check JSON result.
Violin Concerto in A Minor, BWV 1041: I. (No Tempo Indication)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1b32b7eb9f17443991d6a2ec57a0beb3ff98684932d65092dbd7d1b495fe65. 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/GBAYC8200226 — a six-check JSON result.
Trio Sonata in G minor for 2 Violins and Continuo, Op. 1/1 , RV 7 3: 5. Gavotte (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0e892a2274199859b5571051c06327fa794f0add7ad441a627acbe8d6ef1e5. 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/NLA507615225 — a six-check JSON result.
Violin Concerto No. 2 In B Minor, Op. 7, MS.48: 3. Rondo à la clochette, 'La campanella' - Excerpt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220cd07f99563d892218fd0fb0ae1c1cd7ddbf99876f65c5476fb4628073de5c. 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/DEF057501854 — a six-check JSON result.
Violin Concerto in E Major, BWV. 1042: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c315cb6db4fefc9607dcca875a9aabedec29bb2136154a2ad8c896c31765e9f. 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/GBAYC8200230 — a six-check JSON result.
Violin Concerto in A Minor, BWV 1041: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1b32b7eb9f17443991d6a2ec57a0beb3ff98684932d65092dbd7d1b495fe65. 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/GBAYC8200226 — a six-check JSON result.
Bach, JS: Violin Concerto No. 1 in A Minor, BWV 1041: I. —
Concertos & Sonatas: Mozart, Bach, Brahms, Lalo, Franck...
Bach, JS: Violin Concerto No. 1 in A Minor, BWV 1041: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48247e7495d57f286105958239f2f3e6bfa738f2b334f1dcbd5ab32369c049a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8200227 — a six-check JSON result.
Bach, JS: Violin Concerto No. 1 in A Minor, BWV 1041: III. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c3202b2fe8efa0f5ec2de2cd54e9f4813dbee451a083ea7c8231afea6d4a67. 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/GBAYC8200228 — a six-check JSON result.
Bach, JS: Concerto for Two Violins in D Minor, BWV 1043: I. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce56e4c8085e46f05967583c9af62bd7ffc2f93db229cc84aaa7e4b283d2b686. 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/GBAYC8200132 — a six-check JSON result.
Concerto for Two Violins in D Minor, BWV 1043: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2eb5bc4742ba15a93b8c07279726206a8903ed7ae596bcc6f4884a969720e9. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/GBAYC8200134 — a six-check JSON result.
Violin Concerto No. 2 in B Minor, Op. 7, MS. 48: III. Rondo à la clochette "La campanella". Allegretto moderato - Excerpt
24 Caprices for Violin, Op. 1, MS. 25: No. 24 in A Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31963f903e9da6351d08deb4f0b5f79fb725b593a232f16cb3642aea19bab54. 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/DEF057730824 — a six-check JSON result.