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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9343501e38e58aa75a26dd9bec65d4982ec046f3d610b0d891d3731dad3f40. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53578712-bfbb-4718-a78a-4effb4cb72f2.json and https://artists.proofprofile.net/proofs/artist/53578712-bfbb-4718-a78a-4effb4cb72f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Arabesken: No. 12, Introduction and Polonaise
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddc58b7965f78164b4317f55d93950a99f99c50317566031df5b436148c3f05. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUFFF0600127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbf77c935395e2b82370f9b4d262c38235e8844136c38d1f0bd801472d0de0a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUFFF0600137.
Itzhak Perlman - The Complete Warner Recordings 1980 - 2002
Schindler's List - Original Motion Picture Soundtrack: Main Theme
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Tema e Variazioni in Mi Maggiore "Per la Granduchessa di Parma", MS 79
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Abdelazer, Z. 570: Rondeau - Arr. by Mary Cohen
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A Song Without Words: The Legacy of Paul Taffanel
Powell, Maud: Complete Recordings, Vol. 1 (1904-1917)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdb20463aa80d4e98ff6567281896f641d5904839855fb6dab816dd5b4c11b2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190105816.
Forgotten Bériot: Virtuoso Opera Fantasies
Beriot: Violin Solo Music, Vol. 1: 12 Scenes - 9 Studies - Prelude or Improvisation
Beriot, C.-A. De: Violin Concertos Nos. 2, 3 and 5
Violin Concerto No. 2 in B Minor, Op. 32: I. Allegro maestoso
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Violin Concerto No. 5 in D Major, Op. 55: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018a45793f15c7c67aa81f4bad90217751baf8963ee7db3d58fe16bf7f596a82. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190762608.
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
Violin Concerto No. 7 in G Major, Op. 76: II. Andante tranquillo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86c198ac2a8e1c5e59364d5630a18b05990e8a30ba6f760f448cd5200e29e62. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB200416702.
Violin Concerto No. 4 in D Minor, Op. 46: I. Moderato maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc203a5c91a73ba58ad48fd825519e8c0fcc2923880196f31492b0e00c24ad3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB200416707.
Violin Concerto No. 7 in G Major, Op. 76: I. Allegro maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1749203e4101ba99cb3e23e0e04da6745ebb7991bc9f5451e6a421cef4e945f0. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB200416701.
Beriot: Violin Concertos Nos. 1, 8 and 9
Violin Concerto No. 9 in A Minor, Op. 104: I. Allegro maestoso
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Violin Concerto No. 9 in A Minor, Op. 104: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceee1bc9d22cf26672a62513d3a3d5d8df0fb3a3f6bd7f0e968ad1c53e01c186. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190234105.
Violin Concerto No. 9 in A Minor, Op. 104: III. Rondo: Allegretto moderato
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Violin Concerto No. 1 in D Major, Op. 16, "Military": Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa411e859f216b90c7ab29fe205834cc80286a1438dfd36e3dd95826acd05e17. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190234101.
Violin Concerto No. 8 in D Major, Op. 99: I. Allegro maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495fd1971bfc5614bd33b5753436b4532fc2071c3bcdabb29aadf696d62f4ae7. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190234102.
Violin Concerto No. 8 in D Major, Op. 99: II. Andantino. Rondo
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Rieding: Violin Concerto No. 2 in B Minor, Op. 35: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15eeecca374d6908122b6a185b7e55fad1584b3e4478150a7a5f6770bc950f89. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9802586.
Rieding: Violin Concerto No. 2 in B Minor, Op. 35: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30fcc0096f5cfb916ff47493d6d730b489c687f4231745bd6ee08a4b58062c45. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9802587.
Rieding: Violin Concerto No. 2 in B Minor, Op. 35: III. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcdde1476d5c0bb0ed0d3e2891d2e5aba0e10e20090be86e219262c75e88d3ed. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9802588.
Seitz: Student Concerto No. 2 in G Major, Op. 13: I. Allegro non troppo -
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Seitz: Student Concerto No. 2 in G Major, Op. 13: III. Allegretto moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e8714920f2a8a0ba6b9298accd149a35102a774a6ad249a333c7f7a15a3f00. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9802592.
Accolay: Violin Concerto No. 1 in A Minor
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6b796c9602024fbf32a1905ed19623fb0f8360ff317981b4ce613c71bff37a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9802594.
Viotti: Violin Concerto No. 22 in A Minor: I. Moderato
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Viotti: Violin Concerto No. 22 in A Minor: II. Adagio
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Viotti: Violin Concerto No. 22 in A Minor: III. Agitato assai
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb517cfdecdbf82f887ed5908b4b79fe5422ba10374f5e945c103aa5bd9725082. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITH670500372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311f5e7493cb4245c04cfb0a46855d27033bd96076f4a8f935237b57e3009bd5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITH670500373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b65ace3137db30f8b293cb64f9e74305df7899df294dc643ec76247bc7a38c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITH670500374.
12 Fantasias for Violin without Bass, TWV 40:16, Fantasia No. 3 in F minor: III. Grave - Vivance
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3 Melodiés, Op. 7: I, Après un Rêve (Arr. for Violin and Piano by Tomislav Butorac)
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Violin Sonata No. 1 in A Minor, Op. 91: II. Vivace
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Leclair, Viotti, Spohr, Beriot: Due virtuosi
Duo Concertant for 2 Violins No. 3 in D Major, Op. 57: II. Adagio cantabile sostenuto
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Duo Concertant for 2 Violins No. 3 in D-Sharp Major, Op. 57: III. Allegretto
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Duo Concertant for 2 Violins No. 3 in D Major, Op. 57: I. Moderato
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Violin Exam Pieces 2020-2023, ABRSM Grade 8
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Duo Concertante No. 3, Op. 57: Allegretto (Rondò)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d8ebb4fce34875a5a18560c007c9c3282a4d968e8666a4f33c883092e7338d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITIAT2000012.
Violin Exam Pieces 2020-2023, ABRSM Grade 5
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Leclair - Eder - Mozart - Beriot | Violin Duos (Duo Mozartiano)
Bazzini, De Bériot, Ernst, Paganini, Sivori, Vieuxtemps: Un violon à l'opéra (Opera Fantasies for Violin)
Leclair, Mendelssohn & Others: Violin Works
Schubert, Stravinsky, Bériot, A. Tchaikovsky (Live)
Loewe: Grand Trio, Op. 12 - Beriot: Piano Trio No. 2, Op. 58
Margie Cates: The Classical Sessions, Vol. VI
Bériot Concerto No. 9 in A minor —1st Mov
Scène de ballet, Op. 100 (Arr. for Violin & Piano)
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Ave Maria, Op. 52 No. 6, D. 839 (Arr. for Violin & Piano)
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ヴァイオリン学生協奏曲集 (監修: 長谷川武久)
新しいバイオリン教本 5 [音楽之友社楽譜準拠] －監修: 長谷川武久－