Mohamed Khelifati (; born 11 July 1966), better known by his stage name Cheb Mami (), is an Algerian raï musician and singer-songwriter. He sings and speaks in Algerian Arabic and sometimes in Eastern
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8867fb2047f42272b7c98cad014721ed5aefe0ee312674db64ae3631382aed. 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/e70dde69-3a71-4724-9e15-74aa5c7b85d9.json and https://artists.proofprofile.net/proofs/artist/e70dde69-3a71-4724-9e15-74aa5c7b85d9.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb838c7921e70241d60f089be4ef5a7a1935b1cf9665825b5134772ef88746d. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/FRX282388322.
Cheb Mami, Double Best, 29 titres originaux remasterisés
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba8a94fae4f102fe5448dc671e9c19b85e7533cb8146e43edeea408821a3e0e. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/FR0O70852126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700ad9b07ab15b6efa1fc9f7547a5676b30f1c5826620ad0d637453ca47842a9. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/FR0O70852153.
Les essentiels du Raï, All stars, Vol 1 of 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d6d0beb7cb86dc7edb43be27f885633672b33b56eddb9d05e612f676fb3a9e. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/FRX762322474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab55cecf601f2e13af816022c245e09a60b7948c0c3a8d41a1e7af01384681d. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/FR0O70793721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d0397d25b1039c673fc9f2eac88481761c9908e2b1d60fd95e4ef6a96fd083. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/FRX452324279.
Shab El Baroud (Live at Zurich Switzerland 1992)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7391d3ce721a9de74e2fe386e1cd54f4713346d6cbe03a8167f82a195e522f9. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T04:08:24Z), 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/FRX872321945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11912d1ccfa19f0811ff6ea0abc792095df0c5c3ccce7cf4830667fbd1d89ffb. 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/FRX872321946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21dc61b7cad73048ee0dbd420bc1ef9732c5fe4b2a0cdc67d8fc4d304427f8f4. 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/FRX872321947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850facad6ac1356af447548f36577fa2f993e48a931fa9d3b661f823e2648f00. 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/FRX872321948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e89938697d53820a104d44ecb7247c8ebb1ed9e3f0f8fdd946fb63f72cb0fb. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/FRX872321953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cfe9c99c357f022ea3c3816be393fec0cc0f10491f4b04eac61e4275090a50. 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/FRZ119704255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eda1fb0a8ef16c5efe4895c5083a1eef37d141f71bb2c5593f826f16165fcf5. 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/FR0O70864561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e07dc5b4f022240072346299834872098fecd4aa28bd59fe73d414d4ee7fc70. 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/FR43D1704390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a449ccd4625ce8512d2e45054ba6ceef68ea5427461ee7f00cd0f4f3e8bfd64. 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/FRZ180100187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9871a7c8251ebd19d4d2503b11db94b4f4088d0dc2c85159d49cbf375b5117. 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/FRZ180100186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd848a297d74bbe4a67ee2dad70e3e814e3a482247f7b88bd9dd4074a7de6e06b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/FRZ180100195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7590c50f65b20a980d25b8d61d1309c2a45ec676d00cc797751106830a2afd. 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/FRZ180100190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5711d25d1e7f128a893fb0ecf2aa4734322a2458cf5a9b39188789063a5737. 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/FRZ180100194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac116766e441214ba8f9e5ed38d632e6b0f966272699f96ab91e5422e105ce44. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/FR0O70793439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9354a527e0cff0870524a8230315ea3e51272c9bebfaee63a2d0d50a064c01b. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FR0O70793174.
Maghreb Soul Story 1986-1990 (Version remasterisée)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7fa4ebc00c8caab1f635a3a86e4e1fdcaf71142b14444341d42bacfbda7b1c. 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/FRZ110600917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c10c490c07830f0107f364d1d9f1f0e448c3e1bb1ae08dcea63641fae671cc4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FRZ110600912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa465cf3ddb491b45f1a1a7d212abadb02c827a90097ddd866d1db5f8e98a3048. Chain 2 (Bitcoin): anchored in block 957826 (2026-07-13T08:56:09Z), 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/FRZ110600915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cfda3fec0179921816174802a3b40ae948fb40eb2a0b3d840b68f733ce0a1d. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T13:14:47Z), 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/FR43D9800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d93f56f785f32d7495a8e74eaadbb82c9460d485a2450a4ef7bd9732ed76a4. 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/FR43D1709980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc851a23bf0a9af6f4b9efdf1403ac16c535ad39e30827e923292f94801f17efd. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/LBA0H2001006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff32f24ac01fd68329754869bdb69f383e494f65022798e0c027872f6bdf5353. 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/FR43D1711250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b646d6401b66e657cc183f8de90d060b56f4fbd56c7048d995444367b3166d. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DGA0L2462733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5ae0a4e2cba4218c284522a497b6f0c559ec1e9f92ef342e921a2018ff9447. 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/USIR19902517.
All The Best - Zu & Co (Night Of The Proms 2014 / Limited Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa00a697a5700685cbc6a3af777c90ffc2d0b4803fe2961bfc0811d8b11f7ed8. 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/IT9000400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5ae0a4e2cba4218c284522a497b6f0c559ec1e9f92ef342e921a2018ff9447. 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/USIR19902517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5ae0a4e2cba4218c284522a497b6f0c559ec1e9f92ef342e921a2018ff9447. 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/USIR19902517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5ae0a4e2cba4218c284522a497b6f0c559ec1e9f92ef342e921a2018ff9447. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USIR19902517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b7b06951fc4472bc86ab863d61b7a77b3c2ee6cfe5f184218dc7a409772d74. 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/FR9W11827159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94342514df3aa3b7cbb028f0eb183353827ed2da5ccafd87c67df02a35cdeb8. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FR8GV2426210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d97de0be3daf34e925d5ae36506ebaac684a6bd632082bdf07b8750ac50745. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FR8GV2425120.