1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x8054353fafa5dfb5f1d764831b45bbf6e455b8a06ce2718139e3a1534004e85d. 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/00bbea1a-5204-453d-8c50-0e4d64692866.json and https://artists.proofprofile.net/proofs/artist/00bbea1a-5204-453d-8c50-0e4d64692866.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Elgar: Symphonies Nos 1-3, Enigma Variations, Cello Concerto, Marches
Symphony No. 1 in A-Flat Major, Op. 55: I. Andante. Nobilmente e semplice - Allegro - 2023 Remastered Version
Symphony No. 2 in E-Flat Major, Op. 63: I. Allegro vivace e nobilmente - 2023 Remastered Version
Symphony No. 3 in C Minor, Op. 88 (posth.): I. Allegro molto maestoso (Sketches elaborated by Anthony Payne) - 2023 Remastered Version
Introduction and Allegro for Strings, Op. 47
Symphony No. 1 in A-Flat Major, Op. 55: II. Allegro molto - 2023 Remastered Version
Symphony No. 2 in E-Flat Major, Op. 63: II. Larghetto - 2023 Remastered Version
Symphony No. 3 in C Minor, Op. 88 (posth.): II. Scherzo. Allegretto (Sketches elaborated by Anthony Payne) - 2023 Remastered Version
Variations on an Original Theme, Op. 36 "Enigma": Theme (Andante)
Variations on an Original Theme, Op. 36 "Enigma": I. C.A.E. (L'istesso tempo)
Symphony No. 1 in A-Flat Major, Op. 55: III. Adagio - 2023 Remastered Version
Symphony No. 2 in E-Flat Major, Op. 63: III. Rondo. Presto - 2023 Remastered Version
Symphony No. 3 in C Minor, Op. 88 (posth.): III. Adagio solenne (Sketches elaborated by Anthony Payne) - 2023 Remastered Version
Variations on an Original Theme, Op. 36 "Enigma": II. H.D.S-P. (Allegro)
Symphony No. 1 in A-Flat Major, Op. 55: IV. Lento - Allegro - 2023 Remastered Version
Symphony No. 2 in E-Flat Major, Op. 63: IV. Moderato e maestoso - 2023 Remastered Version
Symphony No. 3 in C Minor, Op. 88 (posth.): IV. Allegro (Sketches elaborated by Anthony Payne) - 2023 Remastered Version
Variations on an Original Theme, Op. 36 "Enigma": III. R.B.T. (Allegretto)
Pomp and Circumstance Military Marches, Op. 39: III. March No. 3 in C Minor
Variations on an Original Theme, Op. 36 "Enigma": IV. W.M.B. (Allegro di molto)
Pomp and Circumstance Military Marches, Op. 39: II. March No. 2 in A Minor
Pomp and Circumstance Military Marches, Op. 39: IV. March No. 4 in G Major
Variations on an Original Theme, Op. 36 "Enigma": V. R.P.A. (Moderato)
Pomp and Circumstance Military Marches, Op. 39: V. March No. 5 in C Major
Pomp and Circumstance Military Marches, Op. 39: I. March No. 1 in D Major
Variations on an Original Theme, Op. 36 "Enigma": VI. Ysobel (Andantino)
Variations on an Original Theme, Op. 36 "Enigma": VII. Troyte (Presto)
Variations on an Original Theme, Op. 36 "Enigma": VIII. W.N. (Allegretto)
Variations on an Original Theme, Op. 36 "Enigma": IX. Nimrod (Adagio)
Variations on an Original Theme, Op. 36 "Enigma": X. Intermezzo. Dorabella (Allegretto)
Variations on an Original Theme, Op. 36 "Enigma": XI. G.R.S. (Allegro di molto)
Variations on an Original Theme, Op. 36 "Enigma": XII. B.G.N. (Andante)
Variations on an Original Theme, Op. 36 "Enigma": XIII. Romanza. *** (Moderato)
Variations on an Original Theme, Op. 36 "Enigma": XIV. Finale. E.D.U. (Allegro)
Cello Concerto in E Minor, Op. 85: I. Adagio - Moderato
Cello Concerto in E Minor, Op. 85: II. Lento - Allegro molto
Cello Concerto in E Minor, Op. 85: III. Adagio
Cello Concerto in E Minor, Op. 85: IV. Finale. Allegro
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1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ecb6aca4cdc2eeb54a2ea8e503654f79b777a074a03e1c613b2ca8687b4865. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/55Cs9IxPYOnjMcYxHO8Y11.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/55Cs9IxPYOnjMcYxHO8Y11.
Der Troubadour: Seht, wie die Wolken am Himmel ziehen
Carmen: Habt ihr gehört? / Leichter Rauch
Der Freischütz: Was gleicht wohl auf Erden
Der Fliegende Holländer: Steuermann, lass die Wacht
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46899b41fb57bbf988705303f9670e35a0f352b6c2df6227372b01e575278616. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/26VVdkZGEl1bghRSmNpQhu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/26VVdkZGEl1bghRSmNpQhu.
Tannhäuser: Beglückt darf nun dich, o Heimat, ich schauen
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45e757e6dc42b1d57d43d9c61e869514c30c0ab7196b6e19f4a3e27e89791b7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2acrxfpNi7siS1YF7U5YPM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2acrxfpNi7siS1YF7U5YPM.
Die Lombarden: O Signore, dal tetto natio
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9557fbf4dd2e6fda230bae21392c8c3f5e4240cdb50afde7a01579be5a40b2e9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6SPVObq7zIpJpvpt3uCULu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6SPVObq7zIpJpvpt3uCULu.
{"copyright_id":"0xd8c9cb0d625b15e3f688ac64c162bee94852c335c6068e48edf14e21f45d7a3b","isrc":"DEA769801603","name":"Bajazzo: Andiam: din, don suona vespero","registered_at":"2026-06-24T14:57:24Z","spotify_id":"6CLGkJY8U0uYLFQMcd9wfx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c9cb0d625b15e3f688ac64c162bee94852c335c6068e48edf14e21f45d7a3b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6CLGkJY8U0uYLFQMcd9wfx.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6CLGkJY8U0uYLFQMcd9wfx.
{"copyright_id":"0x73ccae6e4406fd7e56e9a7e527257d443189ec6a7d56890e1bf52a351ef2fa31","isrc":"DEA769801611","name":"Madame Butterfly: Coro a bocca chiusa","registered_at":"2026-06-09T07:52:21Z","spotify_id":"0rZnu4joVoHYBlifwsD0KY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ccae6e4406fd7e56e9a7e527257d443189ec6a7d56890e1bf52a351ef2fa31. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0rZnu4joVoHYBlifwsD0KY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0rZnu4joVoHYBlifwsD0KY.
Cavalleria Rusticana: Gli aranci olezzano
Clarinet Concerto No. 2 in E-Flat Major, Op. 57: I. Allegro
Radio Sinfonieorchester Stuttgart des SWR
Clarinet Concerto No. 2 in E-Flat Major, Op. 57: II. Adagio
Clarinet Concerto No. 2 in E-Flat Major, Op. 57: III. Rondo alla polacca
Clarinet Concerto No. 3 in F Minor, WoO 19: I. Allegro moderato
Clarinet Concerto No. 3 in F Minor, WoO 19: II. Adagio
Clarinet Concerto No. 3 in F Minor, WoO 19: III. Vivace non troppo
Clarinet Concerto No. 1 in C Minor, Op. 26: I. Adagio - Allegro
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169535bbfa98977669bd4c9d356356ee522b6ab5dc2e65a844342c64f47eeccc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3roXu7qz5bGE7sa6x28jfr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3roXu7qz5bGE7sa6x28jfr.
Clarinet Concerto No. 1 in C Minor, Op. 26: II. Adagio
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22937de15ff77d0a5bd5706adcbf59c5f374048bd76894a54e31fe3136647592. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6WsPktAn5by9X2tdvp2RDM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6WsPktAn5by9X2tdvp2RDM.
Clarinet Concerto No. 1 in C Minor, Op. 26: III. Rondo. Vivace
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae22aee44066c0f8e277ec19b135f91e63f3f90a43860d406a0f2d494da06150. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0pnHLwSOPjQ4NeRJbQh5On.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0pnHLwSOPjQ4NeRJbQh5On.
Clarinet Concerto No. 4 in E Minor, WoO 20: I. Allegro vivace
Clarinet Concerto No. 4 in E Minor, WoO 20: II. Larghetto
Clarinet Concerto No. 4 in E Minor, WoO 20: III. Rondo al espagnol
El Amor Brujo, G.68: VIII. "Ritual Fire Dance"
Carmen Suite, WD 31: I. "Prelude to Act I"
Carmen Suite, WD 31: II. "Les dragons d'Alcala"
Carmen Suite, WD 31: VI. "La Garde Montante"
Carmen Suite, WD 31: VII. "Danse Boheme"
Danzas Españolas, Op. 22: I. "Romanza Andaluze"
La Vida Breve, G.35, Act II: "Interlude & Dance"
Suite Española No. 1, Op. 47: I. "Granada"
Three Cornered Hat Suite No. 2, G.59: I. "Seguidillas"
Three Cornered Hat Suite No. 2, G.59: II. "Farruca"
Three Cornered Hat Suite No. 2, G.59: III. "Jota"
5 Lieder, Op. 49: No. 4, Wiegenlied (Lullaby)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e25807b9a01591ae4dfedf12ce40037b7c29f82396653095b71e890d2d3cf7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4xaeOkYBlvp9XSfFwakSLC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4xaeOkYBlvp9XSfFwakSLC.
The 99 Most Essential Classics of the Romantic Era
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6a0cf3ca7fc46b0ee16b500381096a0dba5d5395d509ead47cd1ccfce1a2b7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ain6S6nMYH1RoOFLq2kGW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ain6S6nMYH1RoOFLq2kGW.