1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x6934e73fd445398e6453e03b2296c4c86b021d54341b19d7948f1637d5cd4c98. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f559af7-07e4-46cc-a73b-852ad5d2afbd.json and https://artists.proofprofile.net/proofs/artist/0f559af7-07e4-46cc-a73b-852ad5d2afbd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Strauss II, J: La chauve-souris, Act 1: Chanson. "Si je bois un peu, beaucoup" (Alfred, Caroline)
Orchestre De La Société Des Concerts Du Conservatoire
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xc41a3ef46c95e822c31ed908e11681cf7cd2f02c3ca4cc168b359b009bf94fa4. 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/FRZ112300159.
Strauss II, J: La chauve-souris, Act 2: Csárdás. "Ô lointain séjour" (Caroline)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9d7848f6fefe6e3f853c136d0f973d2bdfe3ad3265ab28011f7e3006f5a833. 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/FRZ116506126.
Strauss II, J: La chauve-souris, Act 2: Duetto. "L'aventure est divine" (Caroline, Gaillardin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf680cfef8d1eb73734125e12dde85e5be931bc26478ea6654503a0acdcb4076d. 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/FRZ116506127.
Britten: The Young Person's Guide to the Orchestra - Prokofiev: Peter and the Wolf (Mono Version)
Le Christ dans la chanson populaire (Mono Version)
Histoire de France par les chansons, vol. 7: Régence et Louis XV (Mono version)
Rondes et chansons de France (feat. Olivier Alain et son orchestre) [Mono Version]
Chansons d'amour et de misère (Mono Version)
À travers chants (feat. Daniel White et son orchestre) [Mono Version]
Les Contes d'Hoffmann, Act II: Belle nuit, ô nuit d'amour (Barcarolle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77227d7be299345ba146e061bcf0bad181d1358f734641f748ca493c7609c23. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC8900746.
Delibes: Lakmé, Act 1: "Miss Rose, Miss Ellen, respectez les clôtures !" (Mrs Bentson, Ellen, Rose, Gérald, Frédéric)
Choeurs du Théâtre National De l'Opéra-Comique, Paris
Orchestre Du Theatre National De L'Opera Comique
Orchestre du Theatre National de IOpera-Comique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab5711c2437ae02dab28e5c880cc40cac6f9d3c0dc99385827e87504e7f28d9. 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/FRZ110200045.
Delibes: Lakmé, Act 1: "Quand une femme est si jolie" (Mrs Bentson, Ellen, Rose, Gérald, Frédéric)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d4b28bcb68d6ea97c529913fe3bf112b3f1fcfee3943eb16caaa3238d7346f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRZ110200046.
Delibes: Lakmé, Act 1: "Nous commettons un sacrilège" (Mrs Bentson, Ellen, Rose, Gérald, Frédéric)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7b3efe2a40b93c47f257567f3d74651bf956823eb203e4c907ffeeea1e47ba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRZ110200047.
Delibes: Lakmé, Act 2: "La rage me dévore" (Nilakantha, Lakmé, Chorus, Gérald, Frédéric)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca549c1ef2a0c0f1171d8d8a6685cc53439d5a3b8c0d4fd9ae23c9d2eb85fd8. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FRZ110200074.
Offenbach: La vie parisienne, Act 1: Chœur. "À Paris, nous arrivons en masse" - "Je suis Brésilien, j'ai de l'or" (Gardefeu, Le Baron, La Baronne, Le Brésilien, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcad84d8a8011ced9e0ec3ba55d673c6703ec7c82aec04c76058015235752315. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRZ117605482.
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Offenbach: La vie parisienne, Act 4: Finale. "Par nos chansons et par nos cris, célébrons Paris" (Chœur, Gabrielle, Le Baron, La Baronne, Bobinet, Gardefeu, Le Brésilien, Urbain, Métella)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fa4aa2c62590a94982c84ea4eb247903c54f3b89880c2148a00655b52bbd0b. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/FRZ117605498.
Offenbach: La vie parisienne, Act 3: Finale. "Soupons, soupons, c'est le moment" (Le Baron, Gabrielle, Pauline, Louise, Clara, Léonie, Prosper, Urbain, Bobinet, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855c162535494718cbb37b29ba44f7063ee1e0c10c3b6c667c0e7a2dc5d087c0. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FRZ117605494.
Delibes: Lakmé, Act 2: "Ces égoïstes peu formalistes" (Mrs Bentson, Chorus, Frédéric, Rose)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295574c4e4f4c7b54b2b06a6982a04b37994e8cec6d2f24c4d174c58c1aaca13. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FRZ110200059.
Delibes: Lakmé, Act 2: "Enfin ! Nous aurons du silence !" (Mrs Bentson, Frédéric, Rose)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdf24e4ef1fda78711de1ada3a48f740519a95a736ee77d390cca312d3cd9c8. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/FRZ110200060.
Offenbach: La vie parisienne, Act 2: Dialogue. "Ah ça, mais le train de Trouville est en retard" - Duo. "Entrez, entrez, jeune fille à l'œil bleu" - Rondo. "Autrefois, plus d'un amant tendre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cfd2b39e434587383f71283bd10709f14d1800e4833dbef3638e170b4f8024. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/FRZ117605483.
Offenbach: La vie parisienne, Act 2: Dialogue. "Vous savez maintenant ce que c'est qu'un majors" - Finale. "Nous entrons dans cette demeure" - "Je suis veuve d'un colonel" (Gardefeu, Frick, L
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124b7229b1d3ca13b344183072caa79bc3177e4568389de29ca121511141b27e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRZ117605486.
Delibes: Lakmé, Act 2: "Voyez donc ce vieillard et cette jeune fille !" (Rose, Frédéric, Mrs Bentson, Ellen, Gérald)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4a06aa10db3c4292ac93ed5683b0d820e502f8dfde10356293d110eedfa1fb. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/FRZ110200067.
Offenbach: La vie parisienne, Act 2: Dialogue. "Je vous en ferai, moi, des bottes" - Couplets. "Dans cette ville toute pleine de plaisirs" (Gardefeu, Alphonse, Frick, Gabrielle, Le Baron, La
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2c837057cdec586b5d06eab4bf0a0a149e51e1ed265a2507b6bd2c1ae18cde. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/FRZ117605484.
Offenbach: La vie parisienne, Act 3: "Il faut nous dépêcher vite" - Dialogue. "Eh bien, mes enfants" (Pauline, Clara, Prosper, Urbain, Léonie, Louise, Bobinet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2302bdff3f151420bd86d1fa81a519280073738e3e842435a21e3423c41c2efa. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/FRZ117605489.
Offenbach: La vie parisienne, Act 3: Septuor. "Donc, je puis me fier à vous ?" - Dialogue. "Allez mes amis, allez" (Pauline, Prosper, Urbain, Léonie, Louise, Clara, Bobinet, Gardefeu, Le Baro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bb4c7c4248db91da5143cdcb5ff9196335e8c84ce83715a9db23bd71f56b8c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FRZ117605490.
Offenbach: La vie parisienne, Act 3: Couplets. "On va courir, on va sortir" - Dialogue. "L'amiral, mesdames et messieurs" (Gabrielle, Le Baron, Pauline, Louise, Clara, Léonie, Prosper, Urbain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd8a15a2bfa80cdc8032fda4a938801dbc4fefe183e0ef64c2c447e8200a47f. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FRZ117605492.
Offenbach: La vie parisienne, Act 3: Septuor. "Votre habit a craqué dans le dos !" - Dialogue. "Cher amiral, vous avez de beaux éperons" (Le Baron, Pauline, Bobinet, Gabrielle, Léonie, Clara,
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22904a1adc430047dbbc54c3a7df2b3abbd28527f6dd7cf4dde723f4c6aec98. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FRZ117605493.
Offenbach: La vie parisienne, Act 4: Chœur. "En avant les jeunes femmes" - Duo. "Hier, à midi, la gantière…" Texte (Chœur, Le Baron, La Baronne, Bobinet, Métella, Gardefeu, Gabrielle, Le Brés
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440e1a67efd3fbedc6f480dfafef79372db3d005e13e74701ac71efb8ac71a1c. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/FRZ117605497.
Delibes: Lakmé, Act 2: "Voyez cette ville en fête !" (Ellen, Rose, Mrs Bentson, Frédéric, Gérald, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1044adf33004b1309d583915461a2fd3b9f0784bdd7e8b59eb04487bcf789437. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/FRZ110200082.