Grenoble ( ; ; or ; or ) is the prefecture and largest city of the Isère department in the Auvergne-Rhône-Alpes region of southeastern France.Commune de Grenoble (38185), INSEE It was the capital of
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 0x4ddd212ef8d6b9c4eb5bf41e30df1d370dbc7cf2223d9a8bf3a1616b3fe40643. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f5124a5-c854-4ef2-b650-6fc63a5b60cd.json and https://artists.proofprofile.net/proofs/artist/3f5124a5-c854-4ef2-b650-6fc63a5b60cd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Offenbach: La Grande-Duchesse de Gérolstein, Act 1: Overture
Offenbach: La Grande Duchesse de Gerolstein
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 0x6f4000607817e14ea07c58196b63a89afba457be3c9658590cc3bff9afe40dfa. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBAYC0402545.
La Grande Duchess de Gerolstein, Acte I: No 1: Allegro 'Des femmes, dans nos camps!' (Boum/Fritz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2ac9f564fbc3b4794e23caab0aa46ea61839e1e42914e511827ac50a976fe7. 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/GBAYC0402549.
Offenbach: La Grande-Duchesse de Gérolstein, Act 1: "Et Pif, Paf, Pouf" (Chorus, Fritz, Boum)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ed9036aac55b29f444b1a4192914332a24db80271a6672d0df4d4024e830bc. 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/GBAYC0402552.
La Grande Duchess de Gerolstein, Acte I: No 2: Duo 'Me voici! Me voici!' (Wanda/Fritz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791ec4be8b99fd48cb6dee2be1600ba82eeb33d99a096eb8be2d058291d6c1ab. 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/GBAYC0402553.
La Grande-duchesse de Gérolstein, Act 1: "Vouz aimez le danger" (Duchesse)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7515e1ecbaec91a3dec8698423f408ec2bdb174541d57e667c64887851d5916f. 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/GBAYC0402556.
La Grande Duchess de Gerolstein, Acte I: Récit: 'Vive la Grande Duchesse' (l'armée/Duchesse/Boum/Fritz/Puck)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27783bf8fd9418bacd590986d48f413287a93c3a91264593feab5453fb9af85. 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/GBAYC0402558.
La Grande Duchess de Gerolstein, Acte I: No 5: Chronique de la gazette Hollande 'Pour épouser une Princesse' (Paul/Duchesse)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626c309422dbc9e3e0658f31dd9435c68eb472b746d3cedb391338a0f75739e8. 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/GBAYC0402563.
La Grande Duchess de Gerolstein, Acte I: Récit: 'Et voila!' (Fritz/Duchesse/Paul/Boum/Puck)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7709b2cc080cd7d05b4de0299f7f275bebfc91960e21eb48b2e0ee1a3b8b68e2. 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/GBAYC0402564.
La Grande Duchess de Gerolstein, Acte I: No 1: Allegro 'En attendant que l'heure sonne' (Choeur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebbcdaf69c65fcd70fa3497c3ab28dbbd51f59d7192e912fe30f987bd8b5db4. 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/GBAYC0402546.
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
La Grande Duchess de Gerolstein, Acte I: No 1: Maestoso 'O Mon Fritz...' (Wanda/Fritz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccb438de361ed552f8e6e95ec18bf488bc2f8a966d5d5ca34bbb3f9039e0cc7. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBAYC0402547.
La Grande Duchess de Gerolstein, Acte I: No 1: Chanson et Valse 'Allez jeunes filles, valsez et tournez...' (Fritz/Choeur/Wanda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc644c217415fa7e788193f0912e8a8e12816d66c5034344bbcbf56c1a29d57. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBAYC0402548.
La Grande Duchess de Gerolstein, Acte I: Récit: 'Vive le général Boum...' (Choeur/Boum/Fritz/Népomuc)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b7cf98231215c4284c7edab8f555fa4def9459c77b51edb1fab85fc5a98aca. 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/GBAYC0402551.
La Grande Duchess de Gerolstein, Acte I: Récit: 'Ah! tu es pris...' (Boum/Wanda/Fritz/Puck/Nepomuc)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50ced6dda7f31c2b639a61fa63ac98729def6c3a01d3056c44f526e7400d226. 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/GBAYC0402554.
La Grande Duchess de Gerolstein, Acte I: No 3a: 'Portez armes...' (Choeur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc599f8b4089bd51ea72b51500093f47f2bdf2e54721bb8de9553d08e0f61d7. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBAYC0402555.
La Grande Duchess de Gerolstein, Acte I: Récit: 'Madame...madame!' (Nepomuc/Duchesse/Boum)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4e7e9b788aaa0f1925ae14518586e6818244fa08fc2e47e5e34dd1839072ff. 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/GBAYC0402560.
La Grande Duchess de Gerolstein, Acte I: Récit: 'Mon Dieu...vous avez vu?' (Duchesse/Paul)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b8790399620ea4e1a7cea542c8cc99d57f39ce7a5e70014ad459551eb6df7d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBAYC0402562.
La Grande Duchess de Gerolstein, Acte I: No 6: Allegro Marziale 'Ils vont tous partir pour la guerre' (Choeur/Tous)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc9b0bbd1a22ef774193d6b0dc3c8f5f05557cd1b12daf78257dd0285b43aeb. 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/GBAYC0402565.
La Grande Duchess de Gerolstein, Acte I: No 6: Final 'Vous pouvez sans terreur...' (Fritz/Tous)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5ee57a25be04da077771979b9c306c025bf9f074242ed9a87e43d866295a32. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBAYC0402567.