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 0x73cba4bbb4841bddb250a6a6b75e966e1e3411007949e50b0bbddb2e4646749d. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5bddcee-2988-4162-9962-0b2348e7fe10.json and https://artists.proofprofile.net/proofs/artist/a5bddcee-2988-4162-9962-0b2348e7fe10.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Violin Concerto in E Minor, Op. 64, MWV O 14: III. Allegro molto vivace
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 0x37ba04cd10b670f83774dabfa1414ed69d5548d13705bf0355833a66c4ab183d. 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/HKI191257503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217c67020b33d38755c6c90a9ee5c8f636aba9eed692a0e8889bd3c3ab02fb96. 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/HKI199635812.
Fantasía para un gentilhombre: IV. Allegro con brio
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Valses poéticos: Melodico (Arr. J. McFadden)
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El amor brujo, Scene I (1915 Version): No. 4, Danza del fin del día
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Suite española No. 1, Op. 47 (Arr. N. Kraft for Guitar): V. Asturias "Leyenda"
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Danzas fantasticas, Op. 22: Danzas fantasticas (Fantastic Dances), Op. 22: III. Orgia
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La vida breve, G. 35, La vida breve, Act II: Danza
Orquesta Sinfónica del Principado de Asturias
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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
Classical Chillout - The Essential Collection
Suite bergamasque: III. Clair de lune (orch. A. Caplet)
Rheinland-Pfalz State Philharmonic Orchestra
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d62e6ec7a6f2a3f3f34a4d17c2722fb05397c326068ed4168b6ee3a61c364c8. 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/HKI199717610.
Lucia di Lammermoor, Act I Scene 2 (arr. for harp)
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6 Piano Pieces, Op. 118: No. 5. Romanze in F Major
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Was mir behagt, ist nur die muntre Jagd, BWV 208, "Hunt Cantata": Aria: Sheep may safely graze
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3 Gymnopédies: Gymnopedie No. 1 (arr. for harp)
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Orchestral Suite No. 3 in D Major, BWV 1068: Bach - Overture (Suite) No. 3 in D Major, BWV 1068: II. Air, "Air on a G String"
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3 Gymnopédies: Gymnopedie No. 3 (orch. C. Debussy)
Orchestre Symphonique et Lyrique de Nancy
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2, "Moonlight": I. Adagio sostenuto
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Piano Sonata No. 8 in C Minor, Op. 13, "Pathetique": II. Adagio cantabile
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Cavatina (Die durch die Hölle gehen): Deer Hunter: Cavatina
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Farewell to Stromness (arr. T. Walker for guitar)
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6 Schubertian Songs (arr. J. Mertz for guitar): Lob der Tranen (Praise of Tears), D. 711 (arr. J.K. Mertz for guitar)
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40 of the Best: Classical Music to Drive With
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40 of the Best: Classical Music to Study or Chill With
The Gadfly Suite, Op. 97a: VIII. Romance
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Fantasia on Greensleeves (arr. R. Greaves for orchestra)
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Klavierkonzert Nr. 21 C-Dur, K. 467, "Elvira Madigan": 2. Andante (Elvira Madigan): Piano Concerto No. 21 in C Major, K. 467, "Elvira Madigan": II. Andante
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Canon and Gigue in D Major: Canon in D Major
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6 Romances, Op. 6: None but the lonely heart, Op. 6, No. 6
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Roberto Sierra: Sinfonía No. 3 "La Salsa", Borikén, El Baile & Beyond the Silence of Sorrow
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Compositores madrileños II: Díez - Cruz de Castro
Rueda: Sinfonia No. 3, "Luz" - Imaginary Journey
Rodrigo: Songs and Madrigals (Complete Orchestral Works, Vol. 10)
Beethoven / Mendelssohn: Violin Concertos
Rodrigo: Concierto Serenata / Concierto De Aranjuez (Complete Orchestral Works, Vol. 9)
Falla: Amor Brujo (El) / El Sombrero De Tres Picos
Rodrigo: Concierto Pastorale / Fantasia Para Un Gentilhombre (Complete Orchestral Works, Vol. 8)
Rodrigo: Concierto Madrigal / Concierto Para Una Fiesta (Complete Orchestral Works, Vol. 5)
Rodrigo: Concierto De Aranjuez / Concierto Andaluz (Complete Orchestral Works, Vol. 2)
Concierto de Aranjuez: III. Allegro gentile
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Concierto andaluz: Adagio - Allegro - Allegretto - Tempo I
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Concierto de Aranjuez: I. Allegro con spirito
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Fantasia para un gentilhombre: Espanola y Fanfare de la caballeria de Napoles
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Fantasia para un gentilhombre: Danza de las Hachas
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The Nutcracker Suite, Op. 71a: V. Arab Dance
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Swan Lake, Op. 20a: Act II: Dances of the Swans: Allegro
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Spartacus Suite No. 2: I. Adagio of Spartacus and Phrygia
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Romeo and Juliet Suite No. 2, Op. 64ter: I. Montagues and Capulets
Slovak State Philharmonic Orchestra, Kosice
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Rodrigo: Soleriana / Zarabanda Lejana Y Villancico (Complete Orchestral Works, Vol. 1)
Brahms: Piano Concerto No. 2 / Piano Sonata No. 2