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 0x8121df649e9943ab834288ebd4fced1cfcf0ba28a4b52be90389eb925d971d15. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e93a65b1-c4bf-49a4-957b-0aba26cd294f.json and https://artists.proofprofile.net/proofs/artist/e93a65b1-c4bf-49a4-957b-0aba26cd294f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
The Zilliacus Quartet: Grieg, Maier, Röntgen - String Quartets
Chamber Music (Finnish): Century of Finnish Chamber Music (A)
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 0x46d84649681f9b16a7d212616e0fa1aa1bb31d87e39ad02b867c5cc52cbebc44. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FINDE0100254 — a six-check JSON result.
Violin Concerto No. 2 "Nocturnal Songs": II. Bal des Ardents
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd6b812b0891ee87dfcad9e757760cd9bbb388418f672cf517a5e2ca2f8a7ac. 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/SEAEA2183080 — a six-check JSON result.
Violin Partita No. 2 in D Minor, BWV 1004: I. Allemande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ce3610d1407464f1dfd0654ec617889a3bf41ca76576aee1bf3208a5162fc5. 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/SEAEW1659010 — a six-check JSON result.
Violin Partita No. 2 in D Minor, BWV 1004: V. Chaconne (Arr. H. Thoene for Voice & Violin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad836f67510c1c36361fe9a9792d118589729268d67c803c4710ea03d2c67e7. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/SEAEW1659070 — a six-check JSON result.
Violin Sonata No. 1 in D Minor, Op. 75, R. 123: Ia. Allegro agitato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c95e599aca1cafe75d8ab1cedd514713124be0fdd2e3531cc57511fcb2fdc2f. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/SEAEA2289010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f722d1b9008e2d5d54024edc83913bc092f6019048220c3ddae38ec7f8ff39. 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/SEAEA2289090 — a six-check JSON result.
Sonata for Violin and Piano: II. Lent et grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd15b613929f2a3754801a84ceed98c5298f240a358efcce6bb6ccf5a5c2ab4. 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/SEAEC2489080 — a six-check JSON result.
Brahms, Maier & Röntgen: Violin Concertos
Skog & Nilsson: Contemporary Violin Concertos
Koch: Violin Sonata in E minor - Rosenberg: Violin Sonata No. 2 - Melchers: Violin Sonata, Op. 22
Sibelius - Stenhammar - Nielsen - Svendsen - Nelson
Mozart: Duo for Violin and Viola - Sonata for Bassoon and Cello - Oboe Quartet in F major
Duo for Violin and Viola in G Major, K. 423: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c992ba9336ac9f955218daadef029f3b00b98def36e081cbe28f8e095bf0fb. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/SE2QH0200101 — a six-check JSON result.
Duo for Violin and Viola in G Major, K. 423: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f39f61d00089c960c22ea3d3ce6fb44b30450e460c656ac5fad50777b050dd5. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/SE2QH0200102 — a six-check JSON result.
Sonata for Bassoon and Cello in B Major, K. 292: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ebc343c44a2ecc42a5d28326b4a258e66b601e11811e3d4964edf0aa04cbfa5. 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/SE2QH0200104 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc488785c80ba2a68b404392287c7a31893942d37f3ffeceb0a1ad5356a0cb256. 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/SETSA1919312 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bf68420379a7134525c31cb9f26e23d00391ec84bcc918521623e9e90a0e80. 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/SEWDL6020676 — a six-check JSON result.
Pratté: Quartet for Harp, Violin, Viola & Cello, Op. 155 & Quartet for Harp, Clarinet, Horn & Bassoon, Op. 154
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89678e315729ad7b091465e18f52fcb281e0058533b687f692d0647098eb463a. 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/SEAGA9501050 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7ca8f12be0ee0a8e52b49e9c4330d198b42548324d49bd0a31504583f2de67. 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/SEAGA9501060 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92509f471dbaa5657987fd670dcbf088270b3859d853c3bb8c6da1d9c8cc43b5. 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/SEAGA9501070 — a six-check JSON result.
Violin Sonata No. 1 in G Minor, Op. 19: I. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e09e3e8af9b47582e7cd7215064fbf9833098f98635a592bab0f38f06a5d58c. 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/SEAGA0311010 — a six-check JSON result.
Violin Sonata No. 1 in G Minor, Op. 19: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3d802db7a21bea81368467159228490aabb5bc26c12218f9651ddd8f1f0587. 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/SEAGA0311020 — a six-check JSON result.
Violin Sonata No. 1 in G Minor, Op. 19: III. Finale: Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bec8f5fbc0f3a65243330240cee37bbe23ae24f9267f869153c4bfe4d2158d5. 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/SEAGA0311030 — a six-check JSON result.
Polska efter Rimsen från Bollnäs finnskog
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea08de746a302e602cef43e8a7d5537661f7bcf7a1923137e1ebd2ae9b1ecbb6. 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/SEAGA1502013 — a six-check JSON result.
Violin Concerto, Op. 19 (1976 version): I. Allegro non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ccb7b3544532350dc1994611909782a46c726138363bd40401da768eb4053d. 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/SEAGA0101040 — a six-check JSON result.
Violin Concerto, Op. 19 (1976 version): II. Andante sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0b4d0d875ae9c59f8053263ad0ad77b990508d89e77013d95df83a8c543b50. 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/SEAGA0101050 — a six-check JSON result.
Violin Concerto, Op. 19 (1976 version): III. Tempo moderato, con fuoco e molto energico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07398bffbcd911f4753390a816b04a64ed288270968603f70804abe0478c9667. 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/SEAGA0101060 — a six-check JSON result.
"Inte sörjer jag för mina barn är små" - polska efter August Strömberg, Jät
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee56db89985731c5fe9a90b01c93622d9f2912dd6a39d13e3293c22d55fc3ee. 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/SEAGA1501715 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02f1b067db02c64e8f9bd6b0a74498fcc7be09e5e8f619e6ee5d978c16ac8df. 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/SEAGA8504040 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41d7266e26ea49a5ed9d06860ac5b0885c50823a0a7163c83f40e781d85663d. 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/SEAGA8504050 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6b0a589e7fc874f815e5060d0937f28bb0fa77b68ea30b0c87de24a969c76c. 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/SEAGA8504060 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc5bd4857836a24f1f04bf2b83472e011d7ae1e92995aa9196a42dee5fe37ba. 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/SEAGA8504070 — a six-check JSON result.
Sonata No. 3 for Solo Violin: I. Poco largamente - Allegro risoluto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82fc0b51e0c616a55648446663e62cfaa54ac9107fda2ed5ca870fc88ee03d8. 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/SEAGA1500505 — a six-check JSON result.
Sonata No. 3 for Solo Violin: II. Andante
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Sonata No. 3 for Solo Violin: III. Allegro con fuoco - Quasi allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29fb3554c400e3cf5c9d7556fc2fc88317e6fedcc9f4cc4d36b2c8f6d79b94b. 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/SEAGA1500507 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6093e7b27403d2f48b4b39657aad62cfde93bb36bdee757cf09b07fce6bb90. 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/SEAGA1502114 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75c4df9915fddcabefd4b33f9856e964cc8a1acfaf948417dc04f956d861e89. 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/SEAGA1501916 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51784dc22e03a0c333221e804106606e26e3d99db39bf3abd096b8f0c0557fda. 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/SEAGA4801100 — a six-check JSON result.
Violin Concerto No. 1: II. Allegro robustamente
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Violin Concerto No. 1: III. Lento e cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8712d4f7f1f57a02cf102db4af204b69ca054f5fcba1d17fd59432505800465. 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/SEAGA4801120 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3051bad9a42705699a62a1a4dc0587281b3ff84ccb0d25e4ff46cc20a77e220c. 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/SEAGA4801130 — a six-check JSON result.
Violin Concerto No. 1: V. Allegro risoluto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfa04ba25954a8b6273adc768373bc45c938e495e6095b91b4cf9ab2229ebbd. 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/SEAGA4801140 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f6eb4bfbd0f814000bd386f887f0097da6bfe0b298616d9b46d9545ffe50f5. 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/SEAGA1502101 — a six-check JSON result.
Violin Sonata No. 5 in A Minor, Op. 61: I. Andante sostenuto ed espressivo - Allegro con anima
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e76b4871cae24876c7d8b678117cbf4341650b7191449960e355e5d901a651c. 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/SEAGA0408070 — a six-check JSON result.
Violin Sonata No. 5 in A Minor, Op. 61: II. Scherzo vivacissimo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3bb837f281b1a0d8b1ac136e75ab8de162eca8813a0e575fc32d7201802aa3. 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/SEAGA0408080 — a six-check JSON result.
Violin Sonata No. 5 in A Minor, Op. 61: III. Andante con nobile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb696cd3c661e6262fbc4edbf714898c7b6e7c7c8a421b2a1ebd2a8cd3dda0e4b. 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/SEAGA0408090 — a six-check JSON result.
Violin Sonata No. 5 in A Minor, Op. 61: IV. Allegro giocoso
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Violin Concerto, Op. 23: I. Allegro moderato ma inquieto
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Violin Concerto, Op. 23: II. Andante espressivo
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Violin Concerto, Op. 23: III. Allegro molto
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Poéme in C Major for Violin and Piano, Op. 40
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Maria Lithell Flyg: Collected Chamber Music