Michel Colombier (23 May 1939 – 14 November 2004) was a French composer, arranger, and conductor. Career Colombier wrote the scores of several motion pictures and TV productions. He also wrote chambe
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 0x488ec748bd74d82e77db50ea20e002fcaf912cb9a8b6aea5a616587afa2f78ee. 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/9fe68c66-a231-4fb7-97c5-0542dcbc02fa.json and https://artists.proofprofile.net/proofs/artist/9fe68c66-a231-4fb7-97c5-0542dcbc02fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Astérix et le coup du menhir (Bande originale du film)
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 0x37c681925e0f042e7f8e0e4acad8d9f35bc3af1bdbbbb2339dd45722d390b623. 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/FRR412305001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf427d19d4691e8840a08ce2e8d776b59a50fb257a7e8acced702df30f47b7c. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/FRR412305003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a4ae4317a507aa39471287958205c2b615d8c739ff701cf6dfc61ba9722dfe. 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/FRR412305014.
Colossus: The Forbin Project (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820cb926e1541be1d36d974818ab376731e2fa4bf1968fc0ad1ec215c21e8582. 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/USQ4E1703357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa2d76c85ca3f027cc43be23806d6d633f26b8d788b774d071f2373899aa299. 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/USQ4E1703358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b268ca2d8a8652d54d9539511c55b7bb968045fc3548307bba229a15e16b120. 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/USQ4E1703359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03612d0c5db1f1a170734b8ddf3b9a2aef9e58714e6b6d86b105c1c676bd253. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQ4E1703360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a10ddb09fbc24d7d4b6ff4da1b31d42358197b0d61073218da8dcb920167a8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USQ4E1703364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1957e573a72a016a6f5c533e23379a482b45d934b49608417626ddef76f513af. 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/USQ4E1703365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb511b19456936c9a9a2d5eff6fbef1b3078a60b9c34c278f0f42b257e5c994ae. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQ4E1703366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55ea8e46564243ec7ade6192e0ecb59fd198589d74922084213f5113d183c29. 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/USQ4E1703367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1d6a946cef989790843be8d8c53ea78ec0e0a7a866763d65bcd7ff8591fabf. 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/USQ4E1703368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb41290ec795cc73eac8bbdde0364707a2ad7f53e26a98ab24e6cd732b09d578. 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/USQ4E1703369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a4f01eaaba25bdda2aac0cc90a725ae034ed80a5735d6b3afd9b95f8de1810. 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/USQ4E1703370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f2b354ff7ac4d2fd0ef20e258f366176d1184a2432865a28faab07cb2dbeb3. 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/USQ4E1703372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f5b3eaf8a15d6672f05fb4b555749d3e0f6cb2ddd738bb132d195ed2cb9e7c. 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/USQ4E1703373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b83e2f5d6ad1eb25c76a15714955ba83a1f22b640dc829bc25c2436f0e025cc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USQ4E1703375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0ce39d28ce858af17cda290885a9625b0c5b27e37c26d0db62a1f70db690a0. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:56:46Z), 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/USQ4E1703353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293a80a70f4cb08a74530adda38d3cd5c812ce86fac3e4ed71d7ffc5f155e160. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USQ4E1703371.
Largo Winch (Music from the Original TV Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dd7daf6d5c0148b55ae1e521d9327e0a72a6babe4be3073e1df658c91ed958. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/FR60S0200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0720c4e43db7a5ea74e464d202b629a9f1168e872006ad9109dbfa249b2c8fa. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/FR60S0200037.
Swept Away (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335a8b8ac43cf78004f1b51f8d8dc075c382c99b4661db79bf8264fa245c89dd. 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/FRX088390058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07531b79321288609b9d144f0ad84b0fae8d36a9752f4a0f9cd90e30737f3ba. 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/FRX088390060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05bb61906f1224dddae709a9bdaa1433b5bb37738fb0bf88051887a0185f3a8. 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/FRX088390070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19d2caa59e3b8a363c8731f13be7c301147b28f51ecf34bf95402d6fd4fc049. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/FRX088390072.
Psyche Rock - Malpaso Mix By Fatboy Slim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c17893278b51d8d8fbde3b1a1792b01be651403b43dce279acca6f2a5c558e. 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/FRZ036704190.
Psyche Rock - Invisible Mix By William Orbit & Mat Ducasse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ef3fbb083b149880119df29c9e57903956de6c9e43d02d1d7cf699e2984577. 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/FRZ036803180.
Pierre Henry - Métamorphose-Messe pour le temps présent
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c17893278b51d8d8fbde3b1a1792b01be651403b43dce279acca6f2a5c558e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRZ036704190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513c51db148532f490d3d9a9dad8be504b1d8347d1fe7a9eb11a5d1c4ff88cea. 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/FRF156780020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3e742aa259b2a075d9e65dd88a68b2dbd95366b910cc9731fa1adae86fbec3. 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/FRZ036803410.
L'alpagueur - Bande originale du film "L'alpagueur"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79b0d5646ed02baa33e231e2cb26d6390f1da8050561c5ca629dcd703e08b2c. 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/CH1957680050.
Suspense deux - Bande originale du film "L'alpagueur"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d52a2c7eda65deb1a9b372d8e523b4c1b50eaaf888d0095b240da827f96351f. 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/CH1957680080.
Bossa Botola - Bande originale du film "L'alpagueur"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5f768e890b5e0aa3566805e95bd8158c1059768a54625c850a2483fe060292. 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/CH1957680090.
L'épervier inquiet - Bande originale du film "L'alpagueur"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf95b9b030141696cef6c7cbc3a8d33c1768c051db55905c24a0f84ce244cec. 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/CH1957680100.
L'alpagueur - Final - Bande originale du film "L'alpagueur"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa385f00fd2be5f0247bf128b45598c8cc0ce637c8054094a8981cb42c82491f5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CH1957680170.
Les Onze Mille Verges (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9923597c6a132f8d9d1d57aa11bd6df59d6040c736cf7dd6e7f2f90d33c0eb08. 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/ITC000300095.
Le hasard et la violence (Bande originale du film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbd6d50f8724e1ac50e55e35197c068e5cd2ee97aff364e55e3b8b3886a9bb1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USAM10200113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0aa5a04ebcf89cc2296026e53e9b27b5890d710db6cf7f6adc9a32a348d7885. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USKO11500746.
Colombier / Arr Tharaud: Plus rien (Arr. Tharaud for Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4c5d16a6fe12d26ecd6ef6666904634c2fda6cc5ec63cab60c7c793d520798. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBAYC1702481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7058220a649d95345af137e15c28bdf5539a06d4779003b650293fb30f778162. 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/FR7JM2108160.