Didier René Henri Barbelivien (; born 10 March 1954 in Paris) is a French author, lyricist, songwriter and singer. Beginning in the 1970s, he wrote a number of successful songs for artists such as: Da
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 0xb6ca97e6a6f56ac7055f43bf97a6f4bcdf9f78e2f4e8b30b43e7617031b7033c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22248764-e990-43c0-b74e-8b5192aa68fd.json and https://artists.proofprofile.net/proofs/artist/22248764-e990-43c0-b74e-8b5192aa68fd.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 0xab4874b3e4e24271b0935d4c0c1dc447b475253715cf1173e08bf453effb9682. 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/FRG938600380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e1e41604ee7e020cab1698f5ae335999aa5d36b55532588af6754f2139a654. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FRG938600250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4618ba1eae72bffb812d5940e787335389ab82bff8c7b4d07305a7a33ef86d. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FRG939000130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fa9d65b1268aa80b97f79519581ad8f9376d03bbf72b5fad42cd09d7820d96. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:05:14Z), 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/FRG939000120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b4072522ad5373c8ed9d956be0f7f16795ff9f9b38d6bb6abb2ffaa45fcc55. 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/FRG939000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e99d3bdbcb2fe94f63ef20c81651d23a0d27b2f532fc29da171cbdf008ed298. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRG939000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa23be01206ac4b3f0219a0fbfbff7d66ab5b32869c80d0c5a11d8c6e72ed67. 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/FRG939100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a40d7c7e5f01fdb0ddc4c93dbf16b0d035cc1c53f220476ec0c51e581fd9afd. Chain 2 (Bitcoin): anchored in block 958677 (2026-07-19T05:47:23Z), 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/FRG939100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8882db0d023b0060f95014a042e54bc6ba1d91fa9a40f23551ac468291636d8. 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/FRE089300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c83c75eaed3471a0dee4372731abc87965591c2883b9e042900602fe5d159a7. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FRG938400160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1b624b5aee77648733697c5c0b7d0cdcf36f7be6a1675ec7aa173a641358e8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR6V80876743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f99512a145b402661ff1902a552e36ddf10d42c57546ad0dd1c2f8c40f6c042. 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/FR6V80876748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95966f30e0a6c2fc306d22db43a25e6be384504405b02f3d900f2cb8aa689214. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/FR6V80876749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81aafc60cff6526434d75a657db070105273e0b1839be1811455c34d35d5d09d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:51:12Z), 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/FR6V80876750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0984fcf97d935c73d9ea5493528d96b5e785408647be5637f5f1e940812423. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FR6V80876751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88816ae7d51d072135e0fb56f02882562050ff90910cf227bd1635b85a324b2e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR6V80876754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5000fd71b7163198ed6c12b0b49d8208616970e67384d908ad815438cfe783ac. 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/FR6V80876755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2a583e9834a29a1b0713b93e9d30febcf2ee7e87df75541637120a0caf5ce8. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/FRG938400170.
Etat des lieux : J'écrivais des chansons
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a63fe6ef902b1aa0e395231b83b6fc1de848726ef4aa89365dc49f09291a30. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/FR9W10902314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452516ddf7b35d89e84698aea42c0771b9af75eff3c0ffaec7dc6ddec7e4dc7b. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FR9W10902323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b68e7b8b1fc2ce3e56f6a19f36822f94985fd0cd16b21fa829ce3f74f161fc. 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/FR6V81084730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b0e48b0a58dd9e7c1f02d9ba560795c07b1bbf298d4486be4876867964be9a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR6V81084735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd771eef092159b2e724077d8d765847877c250fad3971c89807e87e57d6b4b9. 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/FR9W11106239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe2a03ff826f73119ffb5ef3e24c370b9b795d3982e3c7ebdcdcd2c92c31597. 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/FR9W11214851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571d43530c8be7544bb443983f2b18f6adbcb9317b41816105483758d0dd0132. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:25:55Z), 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/FR9W11214853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bedb1348b44d525c9ac09cd12c6925270ca3bc1357b009e85b50317706da7c1. 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/FR9W11214858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4900d05868e93d654258af075262e83c3d0941d95eeabc58fe3cc773210d30. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRUM71601157.
Tourne, tourne le temps (hommage à Claude Lelouch)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665c73abbfd648fa1a98d412572c407e07116500ffbb940920ff918aaa0086ea. 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/FRZ051700687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52527332136841da0fcd64f9e21cdaec920adb3ca450169a8cf8e5831e54d5af. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR9W11204209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8962d0d1f5e155181e3997a7312587aa87959b6726ebc975bc20c335ad420aac. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FR9W10902320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0e3f2cb4f3e61f0b5327bae81ce2b4e419ef8ec96169052a67117c260ff437. 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/FRE089200390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08bc4fa625331fea091f43e8fcc02481e13a0ab303df9c9a6d4416ee5343ea8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRE089200290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f19067d7a70cafec31ab0200f6a961ce3eb053a542efeb446dc81ac9b8967c6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRDBD2200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b164bd67de95c383aa25913474411820eab0139f6f2681c2b18ad45d7f4a3d. 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/FRDBD2200170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3681617e05db685cdd2f28ce8d4ca3ff6edfc8227750aa85a8f7357b3ec83d2e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:43:26Z), 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/FRDBD2300130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf97567561c6676f751794cce737d013011ace00260fcfd66127c0453aa545e. 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/FRE080800020.
Chansons supérieures (Original artists original songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4ed36010c17938e7f444591fe42af4d451366a8094c063ae789c93fafb87d4. 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/FR6V82048209.
Breizh eo ma bro ! La bretagne est mon pays !
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd9aff7b9ab1f1618989af57a6b5b1bc3809434c9a789f1a0da81beeded8eba. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FRZ051700224.