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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be521891ce485935b10c1bdc2d4f3a1230f17409658ebc5e1d21ca1671bcea3. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1632c589-573f-44ad-b22a-17e73346d04b.json and https://artists.proofprofile.net/proofs/artist/1632c589-573f-44ad-b22a-17e73346d04b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piano Trio in E Major, Hob. XV:28: I. Allegro moderato
Piano Trio in E Major, Hob. XV:28: II. Allegretto
Piano Trio in E Major, Hob. XV:28: III. Finale. Allegro
Présence, Ballet blanc en cinq scènes for Piano Trio and Speaker: No. 1, Introdution et pas d'action (Don Quichote)
Présence, Ballet blanc en cinq scènes for Piano Trio and Speaker: No. 2, Pas de deux (Don Quichote et Ubu)
Présence, Ballet blanc en cinq scènes for Piano Trio and Speaker: No. 3. Solo (pas d'Ubu)
Présence, Ballet blanc en cinq scènes for Piano Trio and Speaker: No. 4. Pas de deux (Molly Bloom et Don Quichote)
Présence, Ballet blanc en cinq scènes for Piano Trio and Speaker: No. 5. Pas d'action et finale (Molly Bloom)
Piano Trio in E-Flat Major, D. 929: I. Allegro
Piano Trio in E-Flat Major, D. 929: II. Andante con moto
Piano Trio in E-Flat Major, D. 929: III. Scherzando. Allegro moderato
Piano Trio in E-Flat Major, D. 929: IV. Allegro moderato
Piano Trio No. 44 in E Major, Hob. XV:28: I. Allegro moderato - Live
Piano Trio No. 44 in E Major, Hob. XV:28: II. Allegretto - Live
Piano Trio No. 44 in E Major, Hob. XV:28: III. Finale. Allegro - Live
Présence, Ballet blanc en cinq scènes for Piano Trio and Speaker: No. 1. Introdution et pas d'action (Don Quichote) - Live
Présence, Ballet blanc en cinq scènes for Piano Trio and Speaker: No. 2. Pas de deux (Don Quichote et Ubu) - Live
Présence, Ballet blanc en cinq scènes for Piano Trio and Speaker: No. 3. Solo (pas d'Ubu) - Live
Présence, Ballet blanc en cinq scènes for Piano Trio and Speaker: No. 4. Pas de deux (Molly Bloom et Don Quichote) - Live
Présence, Ballet blanc en cinq scènes for Piano Trio and Speaker: No. 5. Pas d'action et finale (Molly Bloom) - Live
Piano Trio in E-Flat Major, Op. 100, D. 929: I. Allegro - Live
Piano Trio in E-Flat Major, Op. 100, D. 929: II. Andante con moto - Live
Piano Trio in E-Flat Major, Op. 100, D. 929: III. Scherzando. Allegro moderato - Live
Piano Trio in E-Flat Major, Op. 100, D. 929: IV. Allegro moderato - Live
Berlin Stories: Mendelssohn, Juon, Skalkottas
Trio No. 2 in C Minor, Op. 66, MWV Q 33: I. Allegro energico
Trio No. 2 in C Minor, Op. 66, MWV Q 33: II. Andante espressivo
Trio No. 2 in C Minor, Op. 66, MWV Q 33: III. Scherzo
Trio No. 2 in C Minor, Op. 66, MWV Q 33: IV. Finale
Eight Variations on a Greek Folk Theme: Eight Variations on a Greek Folk Theme
23 Songs of Various Nationalities, WoO 158a: No. 15, Our girlfriends went
23 Songs of Various Nationalities, WoO 158a: No. 13, Lots of gnats have hatched in the wood
23 Songs of Various Nationalities, WoO 158a: No. 14, Oh, rivers, rivers
23 Songs of Various Nationalities, WoO 158a: No. 16, Lovely Minka, I must away!
Jewish Songs, Op. 13: II. The Bread Roll