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 0x8dac7aeb91d8fb88b6c8b782a9b5e44d213d57eb5dbd45de7e2a6682b678862f. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb9f89f5-b373-49ad-85a6-b8e3acbbb641.json and https://artists.proofprofile.net/proofs/artist/fb9f89f5-b373-49ad-85a6-b8e3acbbb641.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ich schleiche bang und still herum (Romanze)
Komm, du geliebte Freundin! (Die Heimkehr der Verbannten)
Heil´ge Flamme, das Feuer der reinsten Liebe (Die Heimkehr der Verbannten)
Oh! Fühle wie vor Seligkeit (Die Heimkehr der Verbannten)
Oh! S´io ptessi dissipar le nubi che m´aggravan la fronte (Il Pirata)
Oh! Sole! Ti vela di tenebre oscure... (Il Pirata)
Amor! Amor! Fanciulla ti rialza (La Falce)
Vocal Recital: Nakajima, Akiko - Martini, J.-P. / Scarlatti, A. / Myslivecek, J. / Bellini, V. / Auber, D.-F. / Cagnoni, A. / Mercadante, S.
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 0x15769f1d2d48381dcf3cc3ff968f2e7114ca0ad867d19f18863a067ee636f728. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITN320910467.
Ridente la calma (arr. W.A. Mozart for voice and piano, K. 152/210a)
Aprile (version for voice and piano): Aprile
Ideale (version for voice and piano): Ideale
Vocal Recital: Nakajima, Akiko - Martini, J.-P.-É. / Scarlatti, A. / Myslivecek, J. / Bellini, V. / Auber, D.-F. / Cagnoni, A. / Mercadante, S.
Ridente la calma (Arr. W.A. Mozart for voice and piano, K. 152/210a)
Aprile: Aprile (Version for voice and piano)
Ideale: Ideale (Version for voice and piano)
Der Zarewitsch, Act I: Einer wird kommen, der wird mich begehren
Kaiser-Walzer, Op. 437: Kaiser-Walzer (Emperor Waltz), Op. 437
Der Favorit, Act I, Der Favorit (the Favourite), Act I: Du sollst der Kaiser meiner Seele sein
Boccaccio, Act I: Hab' ich nur deine Liebe
Die lustige Witwe, Act II: Es lebt' eine Vilja (Vilja-Lied)
Die lustige Witwe, Act III: Lippen schweigen
An der schönen, blauen Donau, Op. 314: An der schönen, blauen Donau (the Beautiful Blue Danube), Op. 314
You and the Waltz and I (Arr. B. Fischer)
Der Favorit (The Favourite), Act I: Du sollst der Kaiser meiner Seele sein
Die lustige Witwe (The Merry Widow)*: Act II: Es lebt' eine Vilja (Vilja-Lied)
Die lustige Witwe (The Merry Widow)*: Act III: Lippen schweigen
An der schonen, blauen Donau (The Beautiful Blue Danube), Op. 314
You and the Waltz and I (arr. B. Fischer)