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 0x6e9343501e38e58aa75a26dd9bec65d4982ec046f3d610b0d891d3731dad3f40. 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/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 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 0xfddc58b7965f78164b4317f55d93950a99f99c50317566031df5b436148c3f05. 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/AUFFF0600127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbf77c935395e2b82370f9b4d262c38235e8844136c38d1f0bd801472d0de0a. 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/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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Tema e Variazioni for Violin and Orchestra
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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
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebae30fb88c4788e599b75055b634940ef9d874a1ddf2c1578915c0e9334cfa. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBDZ1025967.
Powell, Maud: Complete Recordings, Vol. 1 (1904-1917)
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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.
Violin Concerto No. 7 in G Major, Op. 76: I. Allegro maestoso
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Violin Concerto No. 7 in G Major, Op. 76: II. Andante tranquillo
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Violin Concerto No. 4 in D Minor, Op. 46: I. Moderato maestoso
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Beriot: Violin Concertos Nos. 1, 8 and 9
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6823db165fef5325ba4a0fa286cb96cf1bc4822a041983b6e2c5adc50576bda6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190234103.
Violin Concerto No. 9 in A Minor, Op. 104: I. Allegro maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a557c6ee1047e7a3d9c858e0f03a8a8af3a1289306ad059150ae071d5ed9d45. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190234104.
Violin Concerto No. 9 in A Minor, Op. 104: II. Adagio
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Violin Concerto No. 9 in A Minor, Op. 104: III. Rondo: Allegretto moderato
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Rieding: Violin Concerto No. 2 in B Minor, Op. 35: I. Allegro moderato
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Rieding: Violin Concerto No. 2 in B Minor, Op. 35: II. Andante
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Rieding: Violin Concerto No. 2 in B Minor, Op. 35: III. Allegro moderato
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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: II. Adagio -
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Seitz: Student Concerto No. 2 in G Major, Op. 13: III. Allegretto moderato
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Accolay: Violin Concerto No. 1 in A Minor
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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 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/ITH670500372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311f5e7493cb4245c04cfb0a46855d27033bd96076f4a8f935237b57e3009bd5. 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/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.
Sonata in A minor “La mia Filli”: IV. Giga
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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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Sonata No. 2 for solo Violin, Op. posth.: No. 4, Bourrée
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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
6 Sonatas for 2 Violins, Op. 3, No. 5 in E Minor: II. Gavotte - Andante grazioso
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Duo Concertant for 2 Violins No. 3 in D Major, Op. 57: I. Moderato
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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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Violin Exam Pieces 2020-2023, ABRSM Grade 8
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Sonata in E Minor, Op. 2 No. 8: I, Allegro
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Duo Concertante No. 3, Op. 57: Allegretto (Rondò)
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Violin Exam Pieces 2020-2023, ABRSM Grade 5
Sonata in B minor, Op. 5 No. 5: III, Allegro
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Concerto in G, RV 310, Op. 3 No. 3: I, Allegro
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Nationales Radio-Sinfonieorchester der Ukraine
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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
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Scène de ballet, Op. 100 (Arr. for Violin & Piano)
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Thaïs: Meditation (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－