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 0x4bdc709fa21bb2f328823a79306e13d09822dda8983bb4d9d64b1ddfe7370bdb. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17c4ae15-eaa1-4af7-bb09-ba4647bc8501.json and https://artists.proofprofile.net/proofs/artist/17c4ae15-eaa1-4af7-bb09-ba4647bc8501.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Folle Journée 2017: Le Rythme des Peuples
Suite anglaise No. 2 en la mineur, BWV 807: Bourrées I & II
Danse slave en Mi Mineur pour orchestre, Op. 72: II. Dumka
Partita No. 1 en Si Bémol Majeur, BWV 825
Peer Gynt Suite No. 1 pour orchestre, Op. 46: III. Anitra's Dance
Piano Concerto No. 1 en Mi Mineur, Op. 11: III. Rondeau. Vivace
Sonate No. 59 en Mi-Bémol Majeur, Hob.XVI:49: III. Finale. Tempo di minuet
Danse Hongroise No. 4 en Fa-Dièse Mineur pour orchestre, WoO 1
Variations en Ré Majeur sur un menuet de Duport, K. 573
Danses roumaines pour orchestre Sz. 68 (Extract)
El amor brujo, Scene 1: IV. Danza del fin del día (danza ritual del fuego)
Liebeslieder-Walzer en Mi Majeur pour piano à quatre mains, Op. 52
Danses symphoniques de West Side Story: IV. Mambo
Danse slave en Mi Mineur pour piano à quatre mains, Op. 72: II. Dumka (Piano version)
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 0x6024a2c172982b32cc894d8110c1d70e00518dae5e44c4fe08973d17354b713f. 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/FRU621633019.
Trois danses du Tricorne, Suite No. 1: II. Danse des voisins
Danse hongroise No. 4 en Fa Mineur, WoO 1
Dix pièces pittoresques: VII. Danse villageoise
Danse hongroise No. 1 en Sol Mineur, WoO 1
La Belle Au Bois Dormant, Op. 66, transcription pour piano à quatre mains: VI. Valse
Etudes de concert, S. 145: II. Gnomenreigen
Album d'enfants, Op. 39: V. Marche des soldats de bois
Pièces lyriques, Op. 54: III. Marche des trolls
Danse hongroise No. 21 en Mi Mineur, WoO 1
Concerto da camera No. 1 (Version for Piano, Flute, Clarinet & String Orchestra): I. Moderato con moto
Concerto da camera No. 1 (Version for Piano, Flute, Clarinet & String Orchestra): II. Lento cantábile
Concerto da camera No. 1 (Version for Piano, Flute, Clarinet & String Orchestra): III. Vivo e marcato
Concerto for Piano, Percussion & String Orchestra: I. Molto vivace
Concerto for Piano, Percussion & String Orchestra: II. Largo quasi una passacaglia
Concerto for Piano, Percussion & String Orchestra: III. Presto - Prestissimo
Symphony No. 1: I. Moderato ma non troppo
Ķeniņš: Symphonies Nos. 5 & 8 and Aria per corde
Symphony No. 8 for Organ & Orchestra "Sinfonia concertata": I. Moderato
Symphony No. 8 for Organ & Orchestra "Sinfonia concertata": II. Chorale. Largo
Symphony No. 8 for Organ & Orchestra "Sinfonia concertata": III. Toccata
Rolf Wallin: Five Seasons, Stride & Other Orchestral Works
Pēteris Vasks: Oboe Concerto, Vēstījums & Lauda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645ac74c969192449bb01520c0a4bfe036b59299027bb47f7e9b5f4c5aa96241. 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/FINDE2000229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b459b8b9e93659b188da24da37128220c713ed7db3459550ebf1662c2a9c26. 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/FINDE2000231.