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 0xdfd44a45ca07c65b55a1b4c38945ebab46199a212f7a88ef52da723ff8fddad9. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee0fcfcd-0363-4f64-bddd-95f8e2379d95.json and https://artists.proofprofile.net/proofs/artist/ee0fcfcd-0363-4f64-bddd-95f8e2379d95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piano Trio in D Major, Op. 1: I. Allegro non troppo, con espressione
Piano Trio in D Major, Op. 1: II. Scherzo. Allegro
Piano Trio in D Major, Op. 1: III. Larghetto. Sehr langsam
Piano Trio in D Major, Op. 1: IV. Finale. Allegro molto e energicao
Piano Trio No. 2 in B-Flat Major, Op. 65: I. Allegro giocoso
Piano Trio No. 2 in B-Flat Major, Op. 65: II. Tranquillo
Piano Trio No. 2 in B-Flat Major, Op. 65: III. Allegro molto
Piano Trio in D Major, Op. 1: IV. Finale. Allegro molto e energico
Piano Trio in E-Flat Major, Op. 2: I. Modéré, sans lenteur - Très animé
Piano Trio in E-Flat Major, Op. 2: II. Lent
Piano Trio in E-Flat Major, Op. 2: III. Très lent - Vif et gaiement
Piano Trio No. 1 in G Major, L. 3: I. Andantino con moto allegro
Piano Trio No. 1 in G Major, L. 3: II. Scherzo - Intermezzo. Moderato con allegro
Piano Trio No. 1 in G Major, L. 3: III. Andante espressivo
Piano Trio No. 1 in G Major, L. 3: IV. Finale. Appassionato
Piano Trio in D Minor, Op. 120: I. Allegro ma non troppo
Piano Trio in D Minor, Op. 120: II. Andantino
Piano Trio in D Minor, Op. 120: III. Allegro vivo
Piano Trio in E-Flat Major, Op. 2: I. Modéré, sans lenteur
Piano Trio in E-Flat Major, Op. 2: III. Très lent
Piano Trio in G Major, L. 3 CD 5: I. Andantino con moto allegro
Piano Trio in G Major, L. 3 CD 5: II. Scherzo. Intermezzo
Piano Trio in G Major, L. 3 CD 5: III. Andante espressivo
Piano Trio in G Major, L. 3 CD 5: IV. Finale. Appassionato
Piano Trio in D Minor, Op. 120: I. Allegro, ma non troppo
4 Estaciones porteñas (Arr. for Violin, Cello & Piano): III. Primavera porteña
4 Estaciones porteñas (Arr. for Violin, Cello & Piano): I. Verano porteña
4 Estaciones porteñas (Arr. for Violin, Cello & Piano): IV. Otoño porteña
4 Estaciones porteñas (Arr. for Violin, Cello & Piano): II. Invierno porteña
Los pájaros perdidos (Arr. L. Suárez Paz for Voice, Violin, Cello & Piano)
El gordo triste (Arr. L. Suárez Paz for Voice, Violin, Cello & Piano)
El títere (Arr. L. Suárez Paz for Voice, Violin, Cello & Piano)
Oblivion (Arr. L. Suárez Paz for Voice, Violin, Cello & Piano)
María de Buenos Aires: Yo soy Maria (Arr. L. Suárez Paz for Voice, Violin, Cello & Piano)
Maria de Buenos Aires: Yo soy Maria (Arr. L. Suárez Paz for Voice, Violin, Cello & Piano)
Piano Trio No. 1 in E-Flat Major, Op. 33: I. Allegro
Piano Trio No. 1 in E-Flat Major, Op. 33: II. Adagio sostenuto
Piano Trio No. 1 in E-Flat Major, Op. 33: III. Minuetto. Allegro
Piano Trio No. 1 in E-Flat Major, Op. 33: IV. Finale. Vivace
Piano Trio in A Minor, Op. 150: I. Allegro
Piano Trio in A Minor, Op. 150: II. Lento espressivo
Piano Trio in A Minor, Op. 150: III. Allegro con brio
Her Voice - Piano Trios by Beach, Clarke & Farrenc
Piano Trio in A minor, Op. 150: I. Allegro
Piano Trio in A minor, Op. 150: II. Lento espressivo
Piano Trio in A minor, Op. 150: III. Allegro con brio
Musical Remembrances - Rachmaninoff Brahms Ravel Piano Trios
Trio élégiaque No. 1 in G Minor: Trio élégiaque No. 1 in G Minor
Piano Trio No. 1 in B Major, Op. 8: I. Allegro con brio
Piano Trio No. 1 in B Major, Op. 8: II. Scherzo
Piano Trio No. 1 in B Major, Op. 8: III. Adagio
Piano Trio No. 1 in B Major, Op. 8: IV. Allegro
Piano Trio in A Minor, M. 67: II. Pantoum
Piano Trio in A Minor, M. 67: III. Passacaille
Trio No. 1, Op. 11: I. Allegro - Meno mosso - Tempo I
Trio No. 1, Op. 11: II. Andante - Animato - Tempo I
Trio No. 1, Op. 11: III. Presto leggiero
Trio No. 1, Op. 11: IV. Allegro molto agitato - Poco più mosso
Trio: IV. Très animé - Accélérez - Tempo I
Trio: II. 'Der Mutte [sic] der Einfachkeit [sic]?!'
2 Pièces en trio: No. 1, D'un matin de printemps
2 Pièces en trio: No. 2, D'un soir triste
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 → block OTSBitcoinBlock must exist at that height 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 0x9d70429abc99baf074598c1cce45c7f94c174471798a5c18a7efcdc1de64d75b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBLWD2401204.
Piano Trio No. 1, Op. 11: IV. Allegro molto
Piano Trio (1978 Revised Version): I. Allegro animato
Piano Trio (1978 Revised Version): II. Allegro vivace
Piano Trio (1978 Revised Version): III. Moderato
Piano Trio (1978 Revised Version): IV. Très animé
Piano Trio in D Minor: I. Allegro non troppo
Piano Trio in D Minor: III. Scherzo. Presto con brio
Piano Trio in D Minor: IV. Allegro vivace
Piano Trio, Op. 15: II. Allegro, ma non agitato
Five Negro Melodies for Piano Trio: I. Sometimes I feel like a motherless child
Five Negro Melodies for Piano Trio: II. I was way down a-yonder
Five Negro Melodies for Piano Trio: III. Didn't my Lord deliver Daniel?
Five Negro Melodies for Piano Trio: IV. They will not lend me a child
Five Negro Melodies for Piano Trio: V. My Lord delivered Daniel
Piano Trio in G Minor, Op. 15, JB 1:64: I. Moderato assai - Più animato
Piano Trio in G Minor, Op. 15, JB 1:64: II. Allegro, ma non agitato
Piano Trio in G Minor, Op. 15, JB 1:64: III. Finale. Presto
5 Negro Melodies for Piano Trio, Op. 59: No. 1, Sometimes I Feel Like a Motherless Child
5 Negro Melodies for Piano Trio, Op. 59: No. 2, I Was Way Down A-Yonder
5 Negro Melodies for Piano Trio, Op. 59: No. 3, Didn't My Lord Deliver Daniel
5 Negro Melodies for Piano Trio, Op. 59: No. 4, They Will Not Lend Me a Child
5 Negro Melodies for Piano Trio, Op. 59: No. 5, My Lord Delivered Daniel
Piano Trio in C Minor, Op. 2: I. Allegro
Piano Trio in C Minor, Op. 2: II. Andante
Piano Trio in C Minor, Op. 2: III. Vivace
Trio sur des mélodies populaires irlandaises: I. Allegro moderato
Trio sur des mélodies populaires irlandaises: II. Adagio
Trio sur des mélodies populaires irlandaises: III. Gigue
Piano Trio No. 2 in E Minor, Op. 92, R. 129: I. Allegro non troppo
Piano Trio No. 2 in E Minor, Op. 92, R. 129: II. Allegretto
Piano Trio No. 2 in E Minor, Op. 92, R. 129: III. Andante con moto
Piano Trio No. 2 in E Minor, Op. 92, R. 129: IV. Grazioso, poco allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd909882848aa95b669588ef0b2986f966eeabd340ecfe8daf059d0a2d8703db9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBLWD2504604.
Piano Trio No. 2 in E Minor, Op. 92, R. 129: V. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd9fa39597581aca33b8df35ce9d9b03905a3f7ace02340ac9d7114ef75a415. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBLWD2504607.
La mer, L. 108 (Arr. for Piano Trio by Sally Beamish): I. De l'aube à midi sur la mer
La mer, L. 108 (Arr. for Piano Trio by Sally Beamish): II. Jeux de vagues
La mer, L. 108 (Arr. for Piano Trio by Sally Beamish): III. Dialogue du vent et de la mer
Coleridge-Taylor: Five Negro Melodies for Piano Trio: II. I was way down a-yonder