Laurent Naouri, Chevalier L.H. (born May 23, 1964) is a French bass-baritone. Initially beginning his education at the École Centrale de Lyon, Naouri decided to concentrate on opera in 1986 and conti
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633b3ddcc29bb92d8114ae2a72a665edee200d8fca1a14a346f6102cd76a122d. 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/69ca9b66-95ee-4a7b-abad-df0c40ac34f8.json and https://artists.proofprofile.net/proofs/artist/69ca9b66-95ee-4a7b-abad-df0c40ac34f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Offenbach: La Belle Hélène, Act 1: Chœur. "Vers tes autels, Jupin, nous accourons joyeux" (Chœur)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b94345b2774dd060721394cde60341ed604b74d6391fe35b2252338269889d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAYC0003378.
Offenbach: La Belle Hélène, Act 1: Couplets. "Amours divins ! Ardentes flammes !" (Hélène, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeba8882f9394887f9a1426b3e7fa5323488b2bae14c667023e7c59a654e5f07. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBAYC0003381.
Offenbach: La Belle Hélène, Act 1: Chanson d'Oreste. "Au cabaret du labyrinthe" (Oreste, Calchas, Parthénis, Léœna, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0d24cbf832a3552c58f3c40a06671efa3eade78d600e3d3e57762a74536f6c. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/GBAYC0003383.
Offenbach: La Belle Hélène, Act 1: Le jugement de Pâris. "Au mont Ida, trois déesses" (Pâris)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fda0b19116e1c1be28e29d660b588dc115dbe7ed22ab143bce4be3d880551ac. 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/GBAYC0003386.
Offenbach: La Belle Hélène, Act 1: Finale. "Les Dieux decrétènt par ma voix" (Calchas, Ménélas, Hélène, Pâris, Agamemnon, Oreste, Ajax I, Ajax II, Achille, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee316f199aff7ee878096bada40bf5fdfdf69d98b553d455b06ab85b5f2a55d7. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:47:20Z), 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/GBAYC0003392.
Béatrice et Bénédict, Op. 27, H 138: Ouverture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f07a9c69ff1db7e3ca8ff82ec56825955e7694b61a20ec889ce4230f1572ff. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBDGQ0000401.
Iphigénie en Tauride / Act 1: Scène 1. Introduction et choeur. "Grands Dieux ! soyez-nous secouables" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157a55ae1037948cab600608d6bb3e6912a1b431e5f2e67a86309b75b4ad1487. 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/DEF059931201.
La Resurrezione (1708), HWV 47 - Original Version / Parte Prima: Sonata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dcd4b0f98a0dad988821fb8fbbc1c923fa090e3927173970d6a6910a72e449. 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/DEF059530201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b317d0b915e6e9790e4bd9993c743e031f639800a1fca222371feae53be7d4a. 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/FRZ118802739.
30th anniversary Les Arts Florissants compilation
Legrand: Chanson de Delphine (from the movie Les Demoiselles de Rochefort)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb42914de72faf0c206d15a9e248db5c13f126184caa2deb0984d9425fc8a1e. 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/GBAYC1302314.
Legrand: Nous sommes des soeurs jumelles (from the movie Les Demoiselles de Rochefort)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233b4d672161a85c59b233ce3847f8ffa03bbc129afb5f0774eef37d22ba828e. 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/GBAYC1302316.
Legrand: The Summer Knows (from the movie Summer '42)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c1fbb8935204dba1626bba75decd0d9eaf72cb31e5a44a33998f875c568141. 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/GBAYC1302315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b767ffaa176f7ab02dc4cc63cf7683942cf5e1bb26086659378119a19f5cb21. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:56:33Z), 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/FRUM71901747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1a7031d11138ef41631d02e3d9b57feb53bbc2cf8ddd51ebb240bce04e4c08. 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/JPP300900230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff2a32754f66bfcc6871b5b36ea6c68b2cfe4ada88dbc784c530cc1d7358536. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/FRZ051500585.
Strozzi: Cantate, ariette e duetti, Op. 2: L'Eraclito amoroso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb9f459e83ebe4d8c349d48edd20d24e0e20bf13a433e7244127df6169e642c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAYC0802028.
Offenbach: Orphée aux enfers, Act 1: Duo du concerto. "Ah! c'est ainsi !" (Orphée, Eurydice)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8100cbc6c3b88c2049588a7a4850ecd40dc333232fe8d7620dfdff509f3492f6. 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/GBAYC9701772.
Bellini: I Capuleti e i Montecchi, Act I: "Oh! Quante volte" (Giulietta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1950f60bb016eb1a5e3161f42445c42c51837dd80d5900211d9ef5afe13a151b. 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/GBAYC0703196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484930851442f0eb61789ddb8a49ee4b8bd0614bb75ed5a0a2f439afbebf35d1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HKI190056401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f44a9df2cd48328de8eb41a0674e5c893aa36375ba2f60e5b97fbdc897d366. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HKI190056514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58967d11a2f7083a5276086bea3f3eb6260db4ec7230a971208a8393dbb3a96. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HKI190056515.
Handel: Orlando, HWV 31 & Alcina, HWV 34
Handel: Dixit Dominus & Bach: Magnificat
Bach, JS: Magnificat in D Major, BWV 243: I. Chorus. "Magnificat anima mea Dominum"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdc6c3c70728d7b0986eada3edbedcc8ee9fca760c53b3305666dbcb010c50a. 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/GBAYC0701956.
Bach, JS: Magnificat in D Major, BWV 243: II. Aria. "Et exsultavit spiritus meus in Deo"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73b42d7bf5d6428d0d234807f3062a95424ef30fc35fce07a85f69aded05db1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAYC0701957.
Handel: Dixit Dominus, HWV 232: I. Dixit Dominus, Domino meo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4311ceb6af3d0105eb5e1f95d06ca634295762a2edc20ad43be8abbcc5f74cd. 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/GBAYC0701947.
Handel: Dixit Dominus, HWV 232: II. Virgam virtutis tuae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350096009fef273d93c062ac55a5ca97d504ec1d23a40bfaf07baef335bc5f93. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAYC0701948.
Handel: Dixit Dominus, HWV 232: III. Tecum principium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7263bc900b1bb9ef10fad94c1aad57d648045ca459ee1c6b257edd9f5a01d6a7. 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/GBAYC0701949.
Handel: Dixit Dominus, HWV 232: IV. Juravit Dominus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d237d2985ba4768a7911e245e3e4384171841ecffba8625ca6fa7f7a77c9843. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBAYC0701950.
Handel: Dixit Dominus, HWV 232: V. Secundum ordinem Melchisedech
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b736fba3c4751a10d203d225b6b923efe1c39130a961a7142ff3a015f7fb20. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:37:14Z), 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/GBAYC0701951.
Handel: Dixit Dominus, HWV 232: VI. Dominus a dextris tuis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc406c6c7feea9f40a208bb7987812704dfedb0103d6f741b3408f941407a9b54. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GBAYC0701952.
Handel: Dixit Dominus, HWV 232: VIII. Gloria Patri et Filio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8687a28bc0c7781753c04117aa015bf0b5a1bb089e0d6f4109a42e4cdf218435. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:46:22Z), 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/GBAYC0701954.
Adèle Hugo: Mélodies sur des poèmes de Victor Hugo
Massenet: Don César de Bazan (1888 Version)
Stravinsky: Le Rossignol, Act 1: Introduction
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed9148cedc52e5d9fd5b9bd8a0adfd9f6b48cd3a4838547c001cd442d5ca111. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR4KC2304001.
Stravinsky: Le Rossignol, Act 1: "Porté au vent, tombant au loin" (Le Pêcheur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d4db5270fc125b95faaffcc1628038083a18b68b856062e42c7f0726de770a. 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/FR4KC2304002.
Stravinsky: Le Rossignol, Act 1: "Ah ! Ah ! Ah !" (Le Rossignol, Le Pêcheur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd43902431e8ada87e176f3e444d209dc800677737424ceb86413848e0a3bab. 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/FR4KC2304003.
Stravinsky: Le Rossignol, Act 1: "Voici l'endroit, près de ces arbres" (La Cuisinière, Courtisans, Le Chambellan, Le Bonze, Le Rossignol)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c248a102deb8ca87d39ebaa3536ccad755962298dc595052cffa74a6066ac9. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/FR4KC2304004.
Stravinsky: Le Rossignol, Act 2: Chanson du rossignol. "Ah, joie, emplis mon cœur" (Le Rossignol, L'Empereur, Courtisans, Le Chambellan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad86ac1d7a3188e2e59e915005277e3914691eb53ec5281d7da8193e07e70ffb. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/FR4KC2304008.
Eisler & Prokofiev: Bridges (Hollywood Song Book & Transcriptions)