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 0xf1054b491ddd3cc944bc7cb90da9ede373217d45d766237ec64deee52e23e3ef. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23d3c304-dfdd-4bf2-97f2-cad74e734018.json and https://artists.proofprofile.net/proofs/artist/23d3c304-dfdd-4bf2-97f2-cad74e734018.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Out of Doors, Sz. 81: No. 4, Musiques nocturnes
Mikrokosmos, Sz. 107: Variations libres. Allegro molto
Mikrokosmos, Sz. 107: Tierces mineures, secondes majeures. Molto adagio, mesto
Mikrokosmos, Sz. 107: Harmoniques. Allegro non troppo, un poco rubato
Musica ricercata: I. Sostenuto - Misurato - Prestissimo
Musica ricercata: II. Mesto, rigido e cerimoniale
Musica ricercata: III. Allegro con spirito
Musica ricercata: VI. Allegro molto capriccioso
Musica ricercata: VII. Cantabile, molto legato
Musica ricercata: VIII. Vivace. Energico
Musica ricercata: IX. Adagio. Mesto - Allegro maestoso - Béla Bartók in memoriam
Musica ricercata: X. Vivace. Capriccioso
Musica ricercata: XI. Andante misurato e tranquillo - Omaggio a Girolamo Frescobaldi
Mikrokosmos, Sz. 107: Journal d'une mouche. Allegro
Mikrokosmos, Sz. 107: Mélodie dans la brume. Tranquillo
Mikrokosmos, Sz. 107: Ostinato. Vivacissimo
Splinters, Op. 6: IV. Mesto - In memoriam Stefan Romascanu
Études, 2è livre L. 136: Étude pour les Arpèges composés
Préludes, 1er livre, L. 117: Des pas sur la neige
Danses norvégiennes, Op. 35: I. Allegro marcato
Danses norvégiennes, Op. 35: II. Allegretto tranquillo e grazioso
Danses norvégiennes, Op. 35: III. Allegretto moderato alla marcia
Danses norvégiennes, Op. 35: IV. Allegretto molto
Du Lac de Lucerne, Dix Danses, Op. 47: I. Moderato
Du Lac de Lucerne, Dix Danses, Op. 47: II. Kräftig
Du Lac de Lucerne, Dix Danses, Op. 47: III. Anmutig bewegt
Du Lac de Lucerne, Dix Danses, Op. 47: IV. Rasch
Du Lac de Lucerne, Dix Danses, Op. 47: V. Flott
Du Lac de Lucerne, Dix Danses, Op. 47: VI. Sehr zart
Du Lac de Lucerne, Dix Danses, Op. 47: VII. Nicht zu schnell
Du Lac de Lucerne, Dix Danses, Op. 47: VIII. Anmutig
Du Lac de Lucerne, Dix Danses, Op. 47: IX. Nicht zu schnell
Trois danses suisses: I. Marche des maraudeurs
Trois danses suisses: II. Valse hyptnotique
Trois danses suisses: III. Polka psychédélique
Danses suédoises, Op. 63: I. Einleitung. Langsam. Sehr mässig
Danses suédoises, Op. 63: II. Ruhig bewegt
Danses suédoises, Op. 63: III. Frisch, nicht zu schnell
Danses suédoises, Op. 63: IV. Langsam, nicht schleppend
Danses suédoises, Op. 63: V. Ziemlich schnell
Danses suédoises, Op. 63: VI. Langsam, mit Ausdruck
Danses suédoises, Op. 63: VIII. Sehr mässig
Danses suédoises, Op. 63: X. Frisch, nicht zu schnell
Danses suédoises, Op. 63: XI. Sehr mässig
Danses suédoises, Op. 63: XII. Langsam, nicht schleppend
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 0xe649ff0158307306578b07c5ac7e93689d7cc06676bc04d501029111c4a1260f. 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/CH1261550129.
Danses suédoises, Op. 63: XIII. Sehr mässig
Danses suédoises, Op. 63: XIV. Gehend, ruhig bewegt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e2c8b8884f02dd6b248e3be083443704c209049e19d72358d4519d98d3414a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CH1261550131.
Danses suédoises, Op. 63: XV. Sehr mässig
Valses-Caprices, Op. 37: I. Valse-Caprice No. 1 en do dièse mineur
Valses-Caprices, Op. 37: II. Valse-Caprice No. 2 en mi mineur
Parisiana, FP 157: No. 1, Les Trois Dames
Children's Corner, L. 113: No. 6, Golliwogg's Cake-Walk
3 Marches Militaires, D. 733: No. 1 in D Major
Sparkling Girl (Arr. for Accordion and Piano by Fred Harranger)
2 Mélodies de Guillaume Apollinaire, FP 127: No. 1, Montparnasse
This Is America (And I Feel Like Electricity)
Le Pianiste de Varsovie (Arr. for Voice and Piano by Cyrille Lehn)
3 Waltzes, Op. 34: No. 3, Grande Valse brillante in F Major
Children's Corner, L. 113: VI. Golliwogg's Cake-Walk
Marche Militaire No. 1 en Ré Majeur, D. 733
This is America (and I feel like electricity)
Le Pianiste de Varsovie (Arr. for piano & Vocal by Cyrille Lehn)
Les beaux jours: I. Calme des beaux jours
Jaëll: Musique symphonique & Musique pour piano (Portraits, Vol. 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2757f58bea60b5b8835621001985b14372919731e818296a6b6b0a9b63f472b6. 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/ES75S1500310.
Les beaux jours: III. Murmure de la forêt
Les beaux jours: VII. Murmures du ruisseau
Les beaux jours: IV. Incendie de broussailles
Les beaux jours: VI. Les senteurs du jasmin
Les beaux jours: XII. On rêve au mauvais temps