El Hachmi Guerouabi (Arabic: الهاشمي القروابي; January 6, 1938 – July 17, 2006) was an Algerian singer and composer of Chaâbi. He was born in El Mouradia and grew up in Belouizdad. Guerouabi died on
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 0xaa0759f3fdb1857576083895ab48c30084aae34f0162597fbdab5cfec07b0abf. 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/bf5cbd32-8b5f-450e-929d-9d677d1935e8.json and https://artists.proofprofile.net/proofs/artist/bf5cbd32-8b5f-450e-929d-9d677d1935e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Guerouabi, No. 8: Ya Layemni Filiti (Mono Version)
Aib Alik Nti Mheniya (Live au zenith paris 1986)
Allo-Allo (Live au zenith de paris 1986)
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 0x984c98b9086f746131edbc609bb0d14208ec2216ec25beb2dde21aa1ef75b787. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:40:15Z), 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/FR43D1804097.
La reb ghirek qrib moujib fi koul hin yensaa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8044e19669801d7fe3088164b3a64700ecc527983809c8c6535101886c3dcab5. 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/FR0O70793969.
Le Ramadan en fête, 20 chansons pour les veillées du Ramadan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb75214c1ab8d98fe4368477a9b461bd5ee6a1008a59f6389ffabbac24a6b617. 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/FR0O70852220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f12ff8fb08b8beb2153396961855a085631093c4a6f6d775fb4bc8fdc57625. 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/FR6V80678544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbd906f6ec3577145153a60f83afe241d840c92932d13477f2afde7dab94308. 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/FR6V80678546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c5ed3142591d12435ce3297960d88a552bdcb6a3f3e560517d146e27718b5c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:05:09Z), 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/VGA011115315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d98c4bb0b7e9738bcc61412d1922ca66a9a6095688230c2d749f24b229b0dc1. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/FR43D6900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d46f5d79df0bc95d23e157d1d37985131cf19913a5b962a1a60498fbd29b84a. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/FR43D6900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924bbcb6d504bacde6ecfb37addb1f4ebd5f39960c25137849a1564935e1a54c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:32:26Z), 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/FR6V80151226.
Le madhi rani rhlakt babou oua kfelt alih
Le regretté l'Hadj El Hachemi Guerouabi (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392cb17426603e0fc6de1b531f6f01405b88d2b406dc4f9cfa18b76bc2e24a19. 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/QM4TX1811613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f047bf42d53f7965c69fc39d974a01c9bcb88a687d8490eebb14fd2168a0b7. 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/QM4TX1811616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1c796fcf54e91d5e3f9467fdbebc7be93ab47e467700ebb7ba15da37559c17. 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/QM4TX1811619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c697d34b17dbd7f869979e3205f6c13cffb51ad985badf537c2027e9fe9d81. 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/QM4TX1811620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14944a7f6f4fbf867f38e05c59dc8a7bd57dac0fc23512279a362b046d13ade. 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/QM7281898245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f70ffa71da761840680905e1aaddcdad19762b4fdc33d91e6858bd1962238c7. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:36:37Z), 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/QM6N21921512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112b4d8b338dbacd06059d834f70f5ea9a2e4a8ef0d8a511b8bcd8f7900bd1ab. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:36:23Z), 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/QM6N21921514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155d4d72faf139805052032f5c3c0fbd7e28269dd320f09c9461130fb71b04cf. 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/QM6N21921515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f10dc0cea8270a3c101824942be5e166bbd540052e3b07bf04e9e92b64ac48f. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:23:04Z), 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/QM6N21921517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d55cd6d9b1baa3756026f4e65ce2b978a00251e00718a92cc7574652ba05b18. 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/QM6N21921518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cadc0d409101bbeec98080a68c069122721d54c0a8c7385c6355bf0a1957a32. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:41:40Z), 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/QM6N21921520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143fd0efbeddc236b19a08d51b779401139849f122c6509009de74010cb623a2. 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/QM6N21921522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55b81a391373149a9e74bc579c386d12c4ba0e7e4be514f39056124cccbdd89. 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/QM6N21921525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa268c5ea0facbeb42713dc2c7eb22c0845c8e9a62f56314dafaff773e6a86eb8. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:03:30Z), 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/QM6N21921526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e810ba1ec3e8dad807893f9b84a68638b4474a6a91e36d15f1adf8ad79162a5. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:11:05Z), 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/QM6N21921527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006bead2d67d3c89a8300f5779800353177e0a0c2e0de4cf8444b225e5e09518. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:29:45Z), 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/QM6N21921528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf31b836fd69be7af3acab290bc911d0f305126fe7d34ea083be8423da360451. 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/FR43D1717730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc624092294985c69fe455c6beda97003b65b5a6a0d69227847e01b9f83bbcefe. 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/FR43D1714610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e167ef6da5bb7db63a9ed1bd76659cb7c59efa78f14ac45f592b5f9e5a31ce. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/FR43D1717760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b0a5cbb3e3bc8c3e68ead2ff608b06db50fbd15378fb7e34ddaf47da2888a0. 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/FR43D1701010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b934ca09ff9fbc6280872083844a7fa3f4fd82185ff67d5e009f9e090f05f1. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:36:46Z), 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/FR43D1704270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ab9ca49e10c3e8875fb559d8196a299b3dd7d51b026709c3cd7b2f8609ff26. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/FR43D1719720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ef49aa2ea8e141c193a406d6e057d69d95f9465f677ba62c33c8846287d1ff. 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/FR43D1719730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418b5d7d743b9c4118be040be0aad9e4901862883199585d794f9a4249277586. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:29:25Z), 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/FR43D1719740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04559c0e371d3cfab95325fedbae391f24e428cc2ada59eb3a394f111d896ac. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:10:09Z), 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/FR43D1701020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac31360df9b63f6a183a861788126741fb730e9246c8bf0b1e6ca10859f37f6d. 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/FR43D1719750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a304f8fcf7f328e8af4658ecef6162a9ed492a6d9fbb4091362b0fe4fb835ce. 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/QMFMF2112643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8b22bb38f3782f8c82f0736949a6ba28b17fd238a192895bc63bc425070a14. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:16:47Z), 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/QMFMF2112644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c56d59e4648f465a9b8213282c887ba57a998ac187ddf251f5e7dbd6af9a2d7. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:55:03Z), 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/QMDA62103315.