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 0xc16e0e93d68328e6ff4ff3dc21dab9f09cad9b117d762ca6fadd3089851f1062. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8465882c-5903-479f-bc36-3314c6452878.json and https://artists.proofprofile.net/proofs/artist/8465882c-5903-479f-bc36-3314c6452878.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vivier: Lonely Child; Prologue pour un Marco Polo; Bouchara; Zipangu
Goehr: Colossos or Panic, The Deluge & Little Symphony
Del Tredici: Syzygy/Vintage Alice/ Songs
Ligeti: Chamber Concerto: I. Corrente. Flieβend
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 0xf4c7718171402257bdcb467c767f5c50bf750be94bce61f805ef8a957952c5b5. 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/DEA800102401.
Ligeti: Piano Concerto: I. Vivace molto ritmico e preciso
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Ligeti: Piano Concerto: II. Lento e deserto
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd130a9a40caf1af7a4e1a6b3190a50765be9ed822f21975849ce8eb2bc8610e0. 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/DEA800200225.
Ligeti: Requiem: IV. Lacrimosa. Molto lento
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Ligeti : Project Vol.1 - Melodien, Chamber Concerto, Piano Concerto & Mysteries of the Macabre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb604b5bb1e6b2db7a9ef111164074ae17208d66a430d37c1fdc750e34e933860. 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/DEA800102501.
Ligeti : Project Vol.5 - Ballad & Dance, Cello Sonata, Artikulation, Aventures, Nouvelles Aventures, Musica Ricercata, Big Turtle Fanfare & Régi magyar társas táncok
Classical Collection: The Essential Moderns
Ligeti : Project Vol.3 - Cello Concerto, Clocks & Clouds, Violin Concerto & Síppal, Dobbal, Nádihegedüvel
Ligeti : Project Vol.4 - Hamburg Concerto, Double Concerto, Requiem & Ramifications
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Ligeti: Hamburg Concerto: III. Aria, Aksak, Hoketus
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5581a3c3387f191052352f39744c71bb8d029a7e806daec57b59da8e741a4c6. 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/DEA800300343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b948e1ddb0699fd2c1b1dc8c83040505377d5ea19796e425f1f471c804617de. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800300344.
Ligeti: Double Concerto: II. Allegro corrente
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Ligeti: Requiem: I. Introitus. Sostenuto
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Ligeti: Requiem: II. Kyrie. Molto espressivo
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Ligeti: Requiem: III. De die judicii sequentia. Subito. Agitato molto
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89ead4f49d393c7a5b96f30a3553c99ca2612d4bd7a1964192eb3b139471335. 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/DEA800300352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd130a9a40caf1af7a4e1a6b3190a50765be9ed822f21975849ce8eb2bc8610e0. 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/DEA800200225.
M is for Man, Music, Mozart: Instrumental I
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M is for Man, Music, Mozart: The Eisenstein Song
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Hallelujah II / La disciplina dei sentimenti / The Last Diary
Tod Machover: Nature's Breath & Spectres Parisiens
Keer / Dans Van De Malic Matrijzen / Passevite / Bruuks / Vestelwerk
Live 2: Francesconi, Berio, Maderna & Donatoni
Un grand sommeil noir - Version for voice & piano
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Amériques - Original version. Ed. Professor Chou Wen-Chung
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Offrandes: 1. Chanson de Là-haut (poem by Vincente Huidobro)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0673991bdb669273fbcc73fd043a845efcb7e2b99da71667acc2cf90205d6f7d. 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/GBF079810060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64440ed03fbcc7e6f697ce06b08064e4d9c0d692c94a509b75ef6fc1f2d1876c. 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/GBF079613170.
Octandre - Rev. & Ed. Chou Wen-Chung 1980: 3. Grave/Animé et jubilatoire
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Intégrales - Revised & Ed. Chou Wen-Chung 1980
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Ecuatorial - Corrections from original m/s by Chou Wen-Chung
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Déserts: 2nd Interpolation Of Organised Sound
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Jeney: Alef: Hommage A Schonberg / Apollonhoz (To Apollo) / 12 Songs
Zimmermann - The Love for Three Oranges - Mozart, Bach, Beethoven, Paganini, Prokofiev
Mozart: Violin Sonata No. 22 in A Major, K. 305: I. Allegro di molto
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Mozart: Violin Sonata No. 22 in A Major, K. 305: II. (a) Tema. Andante grazioso
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Mozart: Violin Sonata No. 22 in A Major, K. 305: II. (b) Variation I
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Mozart: Violin Sonata No. 22 in A Major, K. 305: II. (c) Variation II
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Mozart: Violin Sonata No. 22 in A Major, K. 305: II. (d) Variation III
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Mozart: Violin Sonata No. 22 in A Major, K. 305: II. (e) Variation IV
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Mozart: Violin Sonata No. 22 in A Major, K. 305: II. (f) Variation V
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Mozart: Violin Sonata No. 22 in A Major, K. 305: II. (g) Variation VI
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Prokofiev: The Love for Three Oranges, Op. 33: March (Arr. Heifetz for Violin and Piano)
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Paganini: 24 Caprices, Op. 1: No. 5 in A Minor
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Paganini: 24 Caprices, Op. 1: No. 9 in E Major "The Hunt"
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Bach, JS: Violin Concerto No. 1 in A Minor, BWV 1041: I. —
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Bach, JS: Violin Concerto No. 1 in A Minor, BWV 1041: II. Andante
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Bach, JS: Violin Concerto No. 1 in A Minor, BWV 1041: III. Allegro assai
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler), Pt. 1
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler), Pt. 2
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler), Pt. 3
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler), Pt. 4
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler), Pt. 5
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler), Pt. 6
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler), Pt. 7
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler), Pt. 8
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler), Pt. 9
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler), Pt. 10
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler), Pt. 11
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler), Pt. 12
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Beethoven: Violin Concerto in D Major, Op. 61: II. Larghetto (Cadenza by Kreisler), Pt. 1
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Beethoven: Violin Concerto in D Major, Op. 61: II. Larghetto (Cadenza by Kreisler), Pt. 2
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Beethoven: Violin Concerto in D Major, Op. 61: II. Larghetto (Cadenza by Kreisler), Pt. 3
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Beethoven: Violin Concerto in D Major, Op. 61: II. Larghetto (Cadenza by Kreisler), Pt. 4
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Beethoven: Violin Concerto in D Major, Op. 61: II. Larghetto (Cadenza by Kreisler), Pt. 5
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Beethoven: Violin Concerto in D Major, Op. 61: III. Rondo. Allegro (Cadenza by Kreisler), Pt. 1
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Beethoven: Violin Concerto in D Major, Op. 61: III. Rondo. Allegro (Cadenza by Kreisler), Pt. 4
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Glazunov: Violin Concerto in A Minor, Op. 82: II. Andante
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Glazunov: Violin Concerto in A Minor, Op. 82: III. Tempo I - Più animato - Tranquillo
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Glazunov: Violin Concerto in A Minor, Op. 82: IV. Cadenza
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Satie: Choses vues à droite et à gauche: I. Choral hypocrite
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Satie: Choses vues à droite et à gauche: III. Fantaisie musculaire
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Prokofiev: 5 Mélodies, Op. 35bis: No. 1, Andante
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Prokofiev: 5 Mélodies, Op. 35bis: No. 3, Animato, ma non allegro
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Prokofiev: 5 Mélodies, Op. 35bis: No. 5, Andante non troppo
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New Music Collections, Vol. 3: Orchestral
Transitoires (1980-81) pour grand Orchestre
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Stick on Stick / Urban Solo / Urban Songs
Richard Ayres: Nos. 31 "NONcerto for Trumpet", 36 "NONcerto for Horn" & No. 37b