Romain Dumas (born 14 December 1977) is a French racing driver in endurance racing, GT and sport-prototype. He has won the greatest races of the discipline, such as the 24 Hours of Le Mans, the 24 Hou
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 0xe600de889dc302859e1f9f9b50f20addf94aae189a6798d46434ff777d255aa5. 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/9376c3c4-5388-49a6-8ac9-4abcbeaf4ba9.json and https://artists.proofprofile.net/proofs/artist/9376c3c4-5388-49a6-8ac9-4abcbeaf4ba9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Delibes: Lakmé, Act 1: Duo des fleurs (Instrumental Version)
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 0x0a1f168a778c7165c62eada37ebce0d08d5544ca4be48941bddc7992ae4aae4d. 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/GBAYC2401168.
La Vie parisienne (Original Version), Act I: Chœur. Nous sommes employés de la ligne de l’Ouest
Chœur de l’Opéra national du Capitole de Toulouse
Orchestre National Du Capitole De Toulouse
Offenbach: La Vie parisienne (Original Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a47f9470bcc716af7ba09e7fffd5d19eb34d187161420fd24fbbc2d7a322631. 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/ITJXZ2400402.
La Vie parisienne (Original Version), Act I: Chœur et Scène. Le ciel est noir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9043edf333944882851efd20f0b3a6f1ebb689dc6ac61f39f55b801fb2472572. 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/ITJXZ2400404.
La Vie parisienne (Original Version), Act I: Dialogue. Et maintenant, rue de Varenne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4335c5e4ee83275f7651e5da9da5dd05ebbcf2c29b6c53bb6ef12104ac0520b3. 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/ITJXZ2400407.
La Vie parisienne (Original Version), Act I: Chœur et Scène. Paris ! Dans une course furibonde !
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4172c2c4ac61bfbae87c7e429c27174ab14d679dad2a93a717442f88cb06684. 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/ITJXZ2400412.
La Vie parisienne (Original Version), Act II: Entracte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf299c0c22979434cb2ef74f2ff80225f73f27c2b21da9805c32d15b21b545858. 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/ITJXZ2400415.
La Vie parisienne (Original Version): Ouverture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8897fd030e224593ad6bf45e650f240814a44db34df9dcbb6373eefa91232108. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ITJXZ2400401.
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
Puccini: Gianni Schicchi: "O mio babbino caro" (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0de34eb3b45da53479e244ab4b9a419c089ab7b8bd27abebb775aa7bc46be6. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/GBAYC2401169.
La Vie parisienne (Original Version), Act I: Dialogue. À quelle heure arrive le train de Maisons ?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9385d391c4003d8f2cd5ea0f501aee7becbbc37ab01d09f467b35b52d15d54eb. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ITJXZ2400403.
La Vie parisienne (Original Version), Act I: Dialogue. Gardefeu !
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5458d5b32aeeafb042d976cd79bf0abd9d03b5b6fd36e69ef240893cded884. 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/ITJXZ2400405.
La Vie parisienne (Original Version), Act I: Couplets de Bobinet. Elles sont tristes, les marquises
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d5bde8279e5c8309a7adcbec17da3521ee9c374fb01a8e0aaf9a098909aa05. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/ITJXZ2400406.
La Vie parisienne (Original Version), Act I: Triolet. Ce que c’est pourtant que la vie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77985fce882cff273414b2b260836d6563dc580cb63786db28e38042eebae1c3. 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/ITJXZ2400408.
La Vie parisienne (Original Version), Act I: Dialogue. Ah ! par exemple ! Si la Baronne n’est pas jolie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31c9fe715a3592008f0a119ba318dac3d64590867b3d79e58b3e43cdc2f3f88. 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/ITJXZ2400409.
La Vie parisienne (Original Version), Act I: Trio. Jamais, foi de Cicérone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7724d6553c0650b9b9736a8de53360da88d0d9bda0f1e354bbd04d6222ef979. 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/ITJXZ2400410.
La Vie parisienne (Original Version), Act I: Dialogue. Et, maintenant, partons.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3008118f4c7a2b925ce4f904ca984bce06f5f383b8525ed0d953de7cb7f65974. 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/ITJXZ2400411.
La Vie parisienne (Original Version), Act I: Rondeau du Brésilien. Je suis Brésilien, j’ai de l’or
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebff7b56a9a89d03cc8c9e4a35cfe084ca2cb18b9808ecf9d8583c7d0d817ba. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/ITJXZ2400413.
La Vie parisienne (Original Version), Act I: Chœur. Paris ! Entrons dans la fournaise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4bb2879e7bae2b840175a19b7a6bc54997ce3ed192517443215c4327b36d8c. 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/ITJXZ2400414.
La Vie parisienne (Original Version), Act II: Duo. Entrez ! entrez, jeune fille à l’œil bleu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ed6ae34b5ae8f1128edd07d05324f77febb4650faddd335af8eb98dfb7ac7b. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/ITJXZ2400416.
La Vie parisienne (Original Version), Act II: Rondo. Autrefois plus d’un amant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e669f4cd13e7b4625e085c43367add22dcde3cee92d84b16761b159db1b440c. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/ITJXZ2400417.
La Vie parisienne (Original Version), Act II: Duo (Suite). Savez-vous bien, mademoiselle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204920903174b60d59525696bb5209bc3a7e0cfc2759b25c8dfa3b56ae2fdf3b. 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/ITJXZ2400418.