Nasereddine Souïdi (, born 30 November 1969), known as Cheb Nasro and after Nasro (Arabic:نصرو) is raï's most prolific artist with more than 131 albums to his credit. Biography Nasro was born Nase
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 0x89779a839a60eb26104c549e7d44a0094876e110c79433c314f25cb442e4807e. 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/21d84e63-f63b-4fcf-b62f-5cef27009739.json and https://artists.proofprofile.net/proofs/artist/21d84e63-f63b-4fcf-b62f-5cef27009739.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 0x8e89b825f69ab174d301ae54009fa088f0e6fdb46e5da29af3957881189dc0e0. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:37:11Z), 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/FRX282306463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f6b4dbde90e3c7be8ccef3f151ebb1e33d3cec46d4843ffa3e0d47523edbb4. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FR43D1600501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76479dd1c759ee1e6b193ef78b98f51adce1f14f57334bf781369d9546065a5. 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/FR43D1600502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe529e5d29f2eb4234d3ed75cd763427150e29fa8a470f622fa5c10edf7d6df0d. 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/FR43D1600505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fa4c4bd3612ca0715f7213238915916efc1df76499310ac45cf50c3469297c. 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/FR43D1600507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1feb1026d8b5b404394dbd56f03378f451681773c7a6e61ff29561f2f9f2cdf4. 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/FR43D1600510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a76737eddab874ebdbc19396fd54f1e37e1d050640cc0747ae60d7cd3a6a1c. 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/FR43D1701390.
Cheb Nasro, Le meilleur du prince de la chanson sentimentale Vol.2
Cheb Nasro, Le meilleur du prince de la chanson sentimentale Vol.3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a6bdfbce8c59439d98c8ec4aa37583d04237f49f9f8e964e251cd366015219. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR0O70804656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e70dd210624cc5422391c15c4180ed2956f2d00b7b009ac0b3223dde0b70648. 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/FR0O70804659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154f65b9fcca1bbd42770f4ec67243e19600b86d3aea0db13ec4d3aac1c7562d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR0O70804660.
Cheb Nasro, Le meilleur du prince de la chanson sentimentale Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5636510cbcb9e76899b9bb027da268769e6ed701a5bd44a4308c49a9bbcfac46. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:24:35Z), 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/FR0O70804633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb113b0f6efe7345d7916991c2928cffc6fe53974d1e44bdbee95c63d642fec5f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FR0O70804638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2464f3404b1acd23b9b6cf3653c54149c60049b66b567af2834d56e4d1195613. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:58:43Z), 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/USAK10100666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e08a7eaed8dd32adfcae912013c3392ddde6776d337f6930e19d4307e86dd2f. 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/VGA011021275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe46e5563f90d7db0545f8c46d549418f83db1bfa6522ce3fb89a92d9f944db4. 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/VGA011021280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e8035c9694d2c67866f04171e13fdcc4163daa5b7b5d14f6548ae24ce7c773. 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/VGA011021295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939eae7a4650f9e2996f361c06eb0abbf2e89b938c897ae169b2507c46a07dce. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:57:37Z), 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/VGA011021283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69287b8cecd3a8cfc6f995ea6dc2a41fe385f7d0159615b70891d45525970a6c. 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/VGA011021299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f901105241459fb5e95f54f05ea9fe6bfa034751e58d944c8b6670bc2e1eb7. 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/FR6V81133385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b62df0937666fa7610a88069a6cd20f456eae173cb26141a82d9100a9361cb. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/FR43D1300854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da5573ea6e43409d23c771dc7154258f82be6f7869584eeaa56443991df4824. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:30:03Z), 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/FR43D1300866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed850fe0aff2253ff8d0e34b2cd96757bdcef71207f0193085284d55efeba2ac. 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/QM4TW1799215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0908a6e3392a83f10871b95a5d51aa0c2aee50745f817f2989e0ceeed186f15a. 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/QM4TW1799216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9e9b6b9dec3c6d472b6a8077abf86226e7d179f7a5f4cdaca1441b958ba343. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QM4TW1799217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e17964dba2f42fda0a6b9a70d9801e3df650b7f92209e31df7439713172128d. 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/QM6MZ1730494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd592c7b6d96d6bee83bb03bebb56ac08d15dd0516b9313ac024d486cc701b11. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM6MZ1730495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60caed6cb2143b3dc46a0988bdb1501510ceb2ae08b71aeb76e18fe4d6bdc2bd. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QM6MZ1730497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeca879977ae70b680c4a71f9c31caae870ff2894a3ec5492a529751999d9b48. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QM6MZ1730502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0651697c14ad443dff4a5f2601c8362744399df910dc6a2f940ef10fc5854c6. 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/FR43D1704070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226e8fcaf75d7af249e9cd8f1a81ba30f13bee895269542bd6f855b3e96f0fc5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FR43D1704140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3591102f6bfcebd2baa89d0a25013e85a1f78d9b629ab93367db08c5c5771aa. 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/FR43D1704180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe681a003f259fe23bd39657b62d7cd6707fb2bcf44137892d8c321b3a9bea0a8. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/FRX762017027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96b2641051565019f8a589c5ac960cb7540b9fcab2c6910f5c21d33d737ff0f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FR10S2189870.