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 0xa5c735b470125b56c3881e90ed6907ab8fdbf91d6ffba299a761931d680dd2e7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/163a18f3-c09a-4955-809e-3faba3cbdc4d.json and https://artists.proofprofile.net/proofs/artist/163a18f3-c09a-4955-809e-3faba3cbdc4d.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 0x5f1a45ed7125e013bfe71d7caf55ada7bc498de12d8b4b98fc7eab48b49ac537. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DGA062306848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f995e2ded426eb3d8d80825f55322166045d05a9ec4148b1c579aa4ac399e5. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/DGA062306852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bfc18ccec917a92d3a927b89bc033d337204c1f8f76fab41cc6a8dc05f70c6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR43D1301022.
Wi Fdan Tkaba Syixef-is (Live au zenith, paris, france 1986)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fca453ce59e560355c8be3b30d9edae212e62ce8d2b03af9e70b34f3a6f1a4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DGA062306839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39d07c9ed172933e8db8693a4e6e760600c23e707ed891af84d09c4ce4dbb1e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DGA062306842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ca18fd88933d21b72f79d6acd59cf723ac4728170e6543c57262fb689d9cf7. 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/DGA062306833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff87ece570e22e657d9cb274416556d3e339f47ca37a0ecd3a0c20adbc7a5c4. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/DGA062306835.
Regard Sur L'histoire D'un Pays Damné, Vol. 1
Regard Sur l'histoire D'un Pays Damné 1ere Partie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2f3e0d22c5d92f83b11c38f525fd4a37ff8fcc919cd78192de84bd856c3d9b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DGA062306866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad81bb55c4e0a76cc13a702539163a6983b665bc643ea41d1de70670912db87. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/DGA062306854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84415cca9dab9d4cd845950070bbfb7791b4bbcec4c8c4836b03b71bad4e0c8b. 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/DGA062306856.
Arreth Thili / Qwan Wid Yetzekiren (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6ba51f55e1411d52c2f0d5b41d9e9eff8211e19653e99473464357d02527f2. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:48:16Z), 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/FR43D1301034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d4cbba1cbcf811adf84dcb0eef445e6f66783eea28da82fdb2a2641ac55122. 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/FR43D1301038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6ab5a2269c6ad7dce28ccf6c53092fac3604d70baa90334aa6778f534e3080. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FR43D1301039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929c3f37ef00060cfe43d3c4daf956e3f1c874fa856af3ee70c52869d591c926. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR43D1301040.
Monsieur Le Président / Slavit Ayavehri (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9b5e67e0a5c1ceff288163fa0b67f515fcab8c5c763e98b25851c567e0094c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/FR43D9600136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda11b2948df2452dcb9e7d0138d50a8c42f5c304f768469815f4c11ca0ef6b2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR43D9600138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a83f72116035aa5cdd6b2fa94880e69e34a845e709a33ba4adaa11b48973de. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR43D9600139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7a9f02058df1f97e0b67585287331250d0b4c8a78e43cb002949e6237f47df. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/FR43D9600144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4ce4c899d2e021aa5d804e67a4b2e30ab8b7b84ff302ecf8d1cd1af52ac554. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/FR43D1301072.
Dounith M-leghrour (Live Au Zénith De Paris 1997)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409cb8b2c297e5874dabffe06518ac6aac8ee2500f93279543f5d19c3a8ef498. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:20:56Z), 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/FR43D9800385.
Men Sabni (Reprise de dahmane el harrachi live)
Ifennanen (Live au zenith de paris 1998)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981ab3319313f9a5d0efb19d44ceff825f201c8f9b2120a4bcf5315b70699fcc. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FR43D7800021.
Matoub Lounès, Compilation Azwaw spécial fête, Oeuvres inédites
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859b446cf690a3066ea1776339dccd6138286dd9ac18b717431fe18e6eaa72f7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR43D1704580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6555755ef07fee88cbcf3a54b60494930fc74b4210c14e117d87ae37bf806a54. 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/FR43D8000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb270d6b73d6f62936609e11f051b2b9e39a0825b708834f597353135205b45d. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/FR43D8000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9021a7975ee31cca47ea739e55e4844acef69ee781b12010a1e74b9d1fb8ee83. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR43D8100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00396b0574727c28bb03c6c2f2bb0382056e1a75e77ef0f3a0940e5644ea9a62. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:52:56Z), 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/FR43D8800212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51c50c7647a686f7cb6fb1f45ecf68eaa5053f1297f6c10bd88cd83f245b265. 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/FR43D8800214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994d2f06942ae5d453433b5fcbb411fccb5ddf6c74f277d3eeaee56890d6507d. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/FR43D8800218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2845af9190c403fa23efef90f22d1876029c79fef44b119ed320bbf70b7a03d6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR43D8500346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c937e2e60057bf804f6d228e55373c755c19462af92177f70597624cef0a6c6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FR43D8500347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88908cd10caae184e6c1655ce3aadec4999e8861ce56ffadfd5178bac485c358. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR43D8500349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d68d56868eaa57a6498eb1fbd0cde945e12f5e14e2fb107d46bc9a3bc4d869. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:50:54Z), 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/FR43D7800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbbcfbb975eef0c74fd74927f7ae4eff63f3f005d45075d480f0106bbcb5d18. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/FR43D7900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9415bbd7de2481225481b14d3bece5a747babc494db74de0e72f7f0cb104f8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR43D8000014.
Les enfants de Kabylie, Children of Kabylia
Matoub Lounès, Best of, Les meilleurs succès de Matoub Vol. I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a465705ef8cc7131e8d1b8c1ec9893facb372850b8d0ad51a8605d99f5a16b. 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/FR0O70880013.
Les plus grands succès du martyr kabyle [Original Masters]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc083360f013dccb1da96dad8784c8c79a660da8659e66143ee742bf16256939. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-20T00:13:33Z), 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/FR43D1704630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86964e1d29c3e17f8da2e627be8967cc641784cb352763abe95c98c02500e24. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/FR43D1707870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6770a706e67ab0ec24d21b0610e9f21c496775fb2bec020de35bf3cb26228f51. 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/FR43D1704560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ebb50f5709c60ff558f5093b34f094788be2720b8643d72af522935a3b3ae5d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR43D1704520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64082878ff4c289d8a3296273846af033f86b72f8b0ae983445d19c286dbfae. 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/FR43D1704510.