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 0x2c2ed16ea6823f8e813527cef21776805a98376c8b9373c6716e8a88bbdf1ad5. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55168f90-b9da-40b1-b8a3-210193887888.json and https://artists.proofprofile.net/proofs/artist/55168f90-b9da-40b1-b8a3-210193887888.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Clarinet Concerto in A Major, K. 622: I. Allegro
Clarinet Concerto in A Major, K. 622: II. Adagio
Clarinet Concerto in A Major, K. 622: III. Rondo. Allegro
Clarinet Concerto in B-Flat Major, Op. 101: I. Allegro moderato
Clarinet Concerto in B-Flat Major, Op. 101: II. —
Mozart: Clarinet Concerto & Clarinet Quintet
Concerto for Clarinet and Orchestra in A Major, K. 622: I. Allegro
Concerto for Clarinet and Orchestra in A Major, K. 622: II. Adagio
Concerto for Clarinet and Orchestra in A Major, K. 622: III. Rondo. Allegro
Clarinet Quintet in A Major, Op. 108, K. 581: I. Allegro
Clarinet Quintet in A Major, Op. 108, K. 581: II. Larghetto
Clarinet Quintet in A Major, Op. 108, K. 581: III. Menuetto
Clarinet Quintet in A Major, Op. 108, K. 581: IV. Arietta con variazioni
Prélude à l'après-midi d'un faune, L. 86
Symphony No.4 in E Minor, Op. 98: I. Allegro non troppo
Symphony No.4 in E Minor, Op. 98: II. Andante moderato
Symphony No.4 in E Minor, Op. 98: III. Allegro giocoso
Symphony No.4 in E Minor, Op. 98: IV. Allegro energico e passionato
Chen Gang & He Zhanhao: The Butterfly Lovers Violin Concerto
Beloved Hung Chai (arr. Kazuaki Ogikubo for violin and orchestra)
3 Wishes for a Rose (arr. Akira Nishimura for violin and orchestra)
Without Rain Flowers Will Not Blossom (arr. Kazuaki Ogikubo for violin and orchestra)
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 0x8fc9f15e93113391252131721a9036b41ef634165a7f118c67f3e7eeb1fe7bd1. 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/HKI191432404.
Green Mountain (arr. Koshiro Nishida for violin and orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b24aa06a27a8d59815245cbdaa8e14ba00a22c170fadf7415e1bb149a0e8892. 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/HKI191432405.
Love Song of the Grassland (arr. Akio Yasuraoka for violin and orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d07d92122f4caf4284ae0d234e0f072f983de8aa53e4ec752ccaf4946c4434. 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/HKI191432406.
Purple Bamboo Melody (arr. Akira Nishimura for violin and orchestra)
Trumpet Concerto in E-Flat Major, Hob.VIIe: 1: I. Allegro
Trumpet Concerto in E-Flat Major, Hob.VIIe: 1: II. Andante
Trumpet Concerto in E-Flat Major, Hob.VIIe: 1: III. Allegro
Concertino for Trumpet and Strings in E-Flat Major: I. Scherzo
Concertino for Trumpet and Strings in E-Flat Major: II. Menuetto
Concertino for Trumpet and Strings in E-Flat Major: III. Larghetto
Concertino for Trumpet and Strings in E-Flat Major: IV. Vivace
Concertino pour trompette, cordes et piano
Variations sur l'air de la flute enchantée, Op. 9
Guitar Concerto in D Major, Op. 99: I. Allegretto
Guitar Concerto in D Major, Op. 99: II. Andantino alla romanza
Guitar Concerto in D Major, Op. 70: III. Ritmico e cavalleresco
Schubert: Symphony No. 8 - Mendelssohn: Symphony No. 4
Symphony No. 8 in B Minor, D. 759 "Unfinished": I. Allegro moderato
Symphony No. 8 in B Minor, D. 759 "Unfinished": II. Andante con moto
Symphony No. 4 in A Major, Op. 90, MWV N16 "Italian": I. Allegro vivace
Symphony No. 4 in A Major, Op. 90, MWV N16 "Italian": II. Andante con moto
Symphony No. 4 in A Major, Op. 90, MWV N16 "Italian": III. Con moto moderato
Symphony No. 4 in A Major, Op. 90, MWV N16 "Italian": IV. Saltarello. Presto
The Mermaid Suite: Straw Hats Flower Dance
The Mermaid Suite: Dance Of The Twenty-four Mermaids
The Mermaid Suite: Mass Dance At The Wedding
Harvest Scenes: Pushing The Mountain Cart
Orchestra Plays Adagio. After-Hours Classic, Vol. 4
Serenade for String Orchestra in C Major, Op. 48: III. Larghetto elegiaco
String Quintet in F Major: III. Adagio - Orchestra Version