Jules Gressier, (24 June 1897, in Roubaix (Nord-Pas-de-Calais) – 27 June 1960, in Aix-les-Bains (Rhône-Alpes)Bibliothèque nationale de France entry for Jules Gressier, accessed 31 January 2015. was a
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 0x3340230277ac4e6d23d0f399f66510a4cf446eae0fce9f43eebe463243e805ab. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b71fd214-8385-46d9-b9ac-227bf5da6f01.json and https://artists.proofprofile.net/proofs/artist/b71fd214-8385-46d9-b9ac-227bf5da6f01.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Offenbach: La vie parisienne, Extracts (1873 Version, Mono Version)
Messager: Monsieur Beaucaire (Mono Version)
Planquette: Les cloches de Corneville, extraits (Mono Version)
Valses de Vienne, opérette en 3 actes (Extracts, Mono Version)
Audran: La mascotte, version abrégée (Mono Version)
Messager: Monsieur Beaucaire, extraits (Mono Version)
Les triomphes de l'opérette, Vol. 1 (1930-1944)
Au Soleil du Mexique, Yvain & Willemetz , Orchestre lyrique et Choeurs de la RTF - Jules Gressier (dir)
Audran: La mascotte (Short Version, Mono Version)
Planquette: Les cloches de Corneville, Extracts (Mono Version)
Galop infernal (French Cancan) - Orphée aux enfers
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 0x41c5bf36e89c3669c11af68e071150fdfd6ed2c0ce322fa5d6c4ec64133249bc. 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/FR6V80878203.
La vie parisienne : 'Rondo du Brésilien' - La vie Parisienne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4047e3bccdf6ebca9bf7435d26f42d6abbb0ab448fbe9ddc9031429452773694. 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/FR6V80878209.
Lehár: La veuve joyeuse, extraits chantés en français (Mono Version)
Offenbach: La vie parisienne, extraits - Varney: Les mousquetaires au couvent, extraits (Mono Version)
Offenbach: Orphée aux enfers, Act 2: Duo de la mouche. "Il m'a semblé sur mon épaule" (Eurydice, Jupiter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b4929d819e0943384c5ba108c348a9ed9b931632516270e14c6836dbbe794a. 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/FRZ112400363.
Offenbach: Orphée aux enfers, Act 2: Chœur infernal. "Vive le vin ! Vive Pluton !" - Hymne. "J'ai vu le dieu Bacchus" (Chœur, Cupidon, Eurydice)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc85aea25936f88442558dd3ce2f3aa13b4b5f055a2bc14b7a9787305584b1c4. 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/FRZ112400364.
Offenbach: Orphée aux enfers: Introduction
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d22c2d0717d0c29ea5d01499020d75cf3f36c82e2b283590f1843df2786b12. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FRZ112400358.
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: Orphée aux enfers, Act 1: Duo du concerto. "Ah, c'est ainsi !" (Orphée, Eurydice)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3acc6efb2ddbb71f65d7a993f659fe503aa9f5dac7e505f4a16976c06836a37. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FRZ112400359.
Offenbach: Orphée aux enfers, Act 1: Chœur du sommeil. "Dormons, dormons" - Couplets. "Je suis Cupidon" - Le réveil des dieux. "Par Saturne !" - Couplets. "Quand Diane descend dans la plaine"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e1268f5b3b99cdbdbe818bb3b8c8ab28237abf986c8e5b0b831ba8b1583617. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/FRZ112400360.
Offenbach: Orphée aux enfers, Act 1: Rondeau des métamorphoses. "Pour séduire Alcmène" (Minerve, Cupidon, Vénus, Diane, Pluton, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad0b41f9485620926bc4b25371defc43b4c87b46e8f8fe7d77c490561e2d24f. 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/FRZ112400361.
Offenbach: Orphée aux enfers, Act 1: Final. "Il approche ! Il s'avance !" (Jupiter, Orphée, Pluton, Diane, Vénus, Cupidon, L'Opinion publique, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c078e7ea976dfac5b86e9a1e72fedc3e9502b578705c422f8c413928bcc7b5. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/FRZ112400362.
Offenbach: Orphée aux enfers, Act 2: Menuet. "Maintenant, je veux, moi qui suis mince et fluet" - Galop infernal. "Ce bal est original" (Jupiter, Diane, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc707bc58432149b3d75248bfd1fc3b047402d7e5485c811a81331976b861cc0c. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/FRZ112400365.
Offenbach: Orphée aux enfers, Act 2: Final. "Ne regarde pas en arrière" (L'Opinion publique, Chœur, Jupiter, Orphée, Pluton, Eurydice)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a78856a3f1ce1e64ed1c3be22c73446682a836a84ab4fadd507cb762c97682. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FRZ112400366.
La Dame blanche, F-A Boïeldieu, Concert du 18/03/1953, Orchestre Lyrique et Chœurs de la RTF, Jules Gressier (dir)
Le Trouvère, G. Verdi, Concert du 07/10/1954, Orchestre Lyrique et Chœurs de la RTF, Jules Gressier (dir)
Adolphe Adam: Le Postillon de Lonjumeau [The Coachman of Lonjumeau] (1952)
Le Petit Duc - La Magie de l'Opérette en 38 volumes - Vol. 20/38
Planquette: Rip Van Winkle (Mono Version)
Offenbach: Orphée aux enfers, Extracts (Mono Version)
Messager: Véronique, extraits (Mono Version)
Lecocq: Le petit duc (Short Version, Mono Version)
Offenbach: Orphée aux enfers, version abrégée (1874 Version, Mono Version)
Offenbach: La vie parisienne, version abrégée (Mono Version)
Offenbach: La belle Hélène, enregistrement abrégé (Mono Version)
Lecocq: La fille de Madame Angot, extraits (Mono Version)
Offenbach: Extraits de La belle Hélène & La vie parisienne (Mono Version)