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 0x5f5952537ca82c5e8fb0d9f70757bec15658c3d501df833af5fb1e6fc9240afb. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50d68fa7-03ae-4c39-98a8-abf3712813e6.json and https://artists.proofprofile.net/proofs/artist/50d68fa7-03ae-4c39-98a8-abf3712813e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Germaine Tailleferre: Fantaisie sur un thème donné de Georges Caussade
Fantaisie sur un thème donné de Georges Caussade
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 0x6ec2abf9aaa4469dd70eaf616ce2a59d17fe0258652d0f6085d5298bde92f359. 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/FRPZ92303341.
Jeanne Leleu, une consécration éclatante, Vol. 1: Musique de chambre et mélodies
Quatuor pour violon, alto, violoncelle et piano: I. Très lent - Vif
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73348cd3fc14f5b9ba3a86696357352f430ab441cff5c46fbc45c5f643309d74. 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/FXR722300010.
Quatuor pour violon, alto, violoncelle et piano: II. Lent
Quatuor pour violon, alto, violoncelle et piano: III. Allegro
Six Sonnets de Michel-Ange: No. 1, Tout ce qu'un grand artiste
Six Sonnets de Michel-Ange: No. 2, Vos beaux yeux me font voir
Six Sonnets de Michel-Ange: No. 3, Fuyez, amants, fuyez l'amour
Six Sonnets de Michel-Ange: No. 4, Qu'il est doux, le festin de ces fleurs
Six Sonnets de Michel-Ange: No. 5, Ils sont rompus, ces liens
Six Sonnets de Michel-Ange: No. 6, C'est ici que mon unique bien
En Italie: III. Au théâtre des marionnettes. À l'aise, d'une manière un peu mécanique
En Italie: V. Sérénade de Pulcinella. Vif et léger
En Italie: VII. Le Dimanche dans une osteria. Assez animé, lourdement
En Italie: IV. Les Compagnons de saint François. Lentement, et avec infiniment de douceur
Elfrida Andrée: Quintette avec piano: II. Andante maestoso
Quintette avec piano: II. Andante maestoso
Jeanne Leleu: Quatuor pour violon, alto, violoncelle et piano: III. Allegro
Marguerite Monnot: L'Hymne à l'amour (Arr. by Gabrielle Panetrat)
L'Hymne à l'amour (Arr. by Gabrielle Panetrat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f0276da669a4447c0411962ececeb67b85bef47e2801e5114b83d4b631a507. 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/FRPZ92303401.
Chants de la lande, Op. 4: I. Les Farfadets
Chants de la lande, Op. 4: II. Mélancolie d'automne
Chants de la lande, Op. 4: III. Anathème
Chants de la lande, Op. 4: IV. La Source
Chants de la lande, Op. 4: VI. Feuille morte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d24667d44bcfea2de976ad2e7658fae2e6cd1a98131210533d3f56e0993dee7. 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/FRPZ92201250.
Quatre Pièces romantiques, Op. 30: I. Le Ruisselet
Quatre Pièces romantiques, Op. 30: II. Valse
Quatre Pièces romantiques, Op. 30: III. Berceuse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286ba83bf34c80befdaafb050c7b9a8821dab6a3e6487dd3b6b1890b49ed3be6. 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/FRPZ92201300.
Quatre Pièces romantiques, Op. 30: IV. Romance sans paroles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e658c0b1336fea62709b7982a8cd296f965e73421d880bfcf8ebd4b66e3015. 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/FRPZ92201320.
Vally Weigl: Songs Newly Seen in the Dusk: IV. Living a life
Songs Newly Seen in the Dusk: IV. Living a life
Dans l'immense tristesse (Arr. Nadia Boulanger)
Lili Boulanger: Dans l'immense tristesse
Grande Fantaisie-Quintette: I. Moderato maestoso
Rita Strohl: Volume 2, Musique de chambre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4c9f46e664da4f1f8476b6d40ce3be2e8e3b9d4faeff4c5da8c6ffbadf973e. 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/FXR722300153.
Grande Fantaisie-Quintette: II. Scherzo. Allegro moderato
Grande Fantaisie-Quintette: III. Intermezzo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581cf16c8b82034d80ca3af7c168f9a7ee75ef57bf7f07b968ee51de6d577ad1. 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/FXR722300155.
Grande Fantaisie-Quintette: IV. Thème et variations. Moderato