Luc Arbogast (born in La Rochelle, France on 2 November 1975) is a French musician and singer-songwriter. He was a contestant in season 2 of the French television talent competition The Voice: la plus
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 0xbae0819840677099169604ee242d7a5050e40133b5ce9a92ea123b3163d0735b. 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/8a407129-ebb1-4fb5-acde-5d4936f06c75.json and https://artists.proofprofile.net/proofs/artist/8a407129-ebb1-4fb5-acde-5d4936f06c75.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x5d3d56c9f2899a525d0b0c222807847b28e043526f32c839c2fb0a2ecce4e75c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRUM71302082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b6a532df8fc98d0250f4a0cb8e23d1d400568c8b8a4cf3ac091cdf746c7fb6. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FRUM71302090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd796d4d71cf1d02f547b83f37c80a4573e2a39099abc64f3396aa80976246e85. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRUM71300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3d56c9f2899a525d0b0c222807847b28e043526f32c839c2fb0a2ecce4e75c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRUM71302082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f261b73bcc5b03fff8c2e376728b50bd9dfea73a2061765d7409d447282b61d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FRUM71302083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4141fe87d06cac449967e1af2d75d9e243cc806987355a756c7ce6567f844dfc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRUM71302084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618648d61f4bbd75b42aeac0c3b7e1558551153424a76b72cd346df3080ddc65. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/FRUM71302085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a09658f308e0c24313424a696f13143b1f186aa3561a11a92cd495004a7b6d8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRUM71302086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6521fc263a03eefd0da2a244f066400074093cb59250532cf7623cd72b4cb89. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FRUM71302087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9db8631357338ea656dbcbeafb158159f9ce1b1e654af0faa4c14134d4c298e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRUM71302088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a09d8870955e9fc542886fa121def7b2d32311804f98a225ab1f2ab58aa828. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRUM71302089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b6a532df8fc98d0250f4a0cb8e23d1d400568c8b8a4cf3ac091cdf746c7fb6. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/FRUM71302090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d08bcf91735a96abfcbcfa123ede6f24380cd839c4bd8b8d32b5683c58291f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRUM71302091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a848f409e8726ca76bf8754e6a3639891f6c0e8579407f74699bf0002d8308d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRUM71302993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f9fac0996b0c3562b44db53dd989071d520b93588b8780763d5d21334bacae. Chain 2 (Bitcoin): anchored in block 958676 (2026-07-19T05:43:13Z), 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/FRUM71302994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d6ae0592ea81bd80a23883c754270bb6342f2c6b59ad1cc577b6e53761229e. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FRUM71401753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393bee5b597b811dc84e90716e88ee3747dd0300d7711bd1007dd75ac6235f70. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRUM71401755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2307051345c1e32f97310a11de92cb2c23f73fe57598dbe581544031ef294c. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/FRUM71401757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0d79c4d8c3698a2971ff192aeedfea17fe2380e1ab4eb5d8cac610f6cce9c9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRUM71401758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5ec564dd328b60b9ca7f139705684c7c91e049a38feaec1d0e34367ab7cbbe. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FRUM71401760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82ed89e05879c50b0f69708cad1332be30737b3bf247af7ff6da66ef561337b. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FRUM71401761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f790eb75b4a6f75f55728f2d106dba5d5efd01a6cda5e230065dae6afb7ebf2. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:02:57Z), 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/FRUM71401762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1127a66efa03a2ee63027c615bcc7c5007a2950097de895c9bc5dd95ba7bbda3. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FRUM71401763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b27749362b93fe12b83e1a1fc7e14997e112857a8aaa3230413348f21d2282d. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/FRUM71401764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2b423594e8ca80c0be592a2b4cbbd3586047cdd079bb09054209d11c866a68. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:39:07Z), 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/FRUM71601909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde696ab87ed4307b4447aefa5edd292e1bf239d17348c1b78b44b2d292c48ef4. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:33:23Z), 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/FRUM71601911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d76f3400f8e83c112c5d0927f6a5ab8fe8caf1e99ea2fba9cc48734fc5fbea2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRUM71601912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a06f1cb0689b7eb38d833079ed779fc134928d62ed5ff7dd50300db9a8be37. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:36:17Z), 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/FRUM71601913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20558614a63fe79fecb0afd638a34406f919b8675d330c6ed0e3a4663c25498e. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/FRUM71601916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d814b864ac3ebdaf3803bd380ba82971cf2311dd8a6292ad70433b97e5f298d. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/FRUM71601917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd1680759b326010471ec28a62efcbdf43159cf5db42343928614c1350a37be. 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/NLM931210044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01559383a039c08652e1672220110c8bd5e76fd9f4b723a37ae93395153b80ca. 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/FRUM71401581.