Mohamed Mounir (born 28 October 1988), better known by his stage name Gnawi, Lgnawi or Simo Lgnawi, is a Moroccan rapper and songwriter from Salé. He is best known for his 2019 single "3acha Cha3b". H
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 0x47346486d0eb60aee539518a02b5ff813d2bcbb49510ad2111c4605a6c222f4c. 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/a81c75e7-f107-46fa-97cc-3abd04fab9bc.json and https://artists.proofprofile.net/proofs/artist/a81c75e7-f107-46fa-97cc-3abd04fab9bc.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 0x2487d2476d67f821d09de0b78fa4007e08926eae9b7ded94138f686c7f9fd7a8. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZHNC2169883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde67170f637b638f104aa18bbe50cf7c25383fe7842c8c484fe4656a4fa7873c. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZHNC2169891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d74b94fb35b2c4588220eb63e8d833804e9459d6a2cd2cd87a0b14729524ea. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZHNC2170137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45ca2d20b037acfddcc2575d581f359629f0fbacfd6fd5241b04087329065ec. 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/QZDA82168407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45ca2d20b037acfddcc2575d581f359629f0fbacfd6fd5241b04087329065ec. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T14:10:55Z), 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/QZDA82168407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80769be3b5ed642066dca27db5faca0349dead3157d9bc31452d3306141760ce. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/QZHNC2169605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c64dfbcf92588359df7f9c2f81b1c08178995d497ea4b5f1ad6b8beea3961e7. 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/QZK6Q2163691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc68b304e69085251a5cabf61f6661d4bb465e0d5f82ccee684690d73502338. 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/QZES72284273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b46f898d5234ae2ecc9ea10ae77e59b82a10bea20a9201d133725567508eb7. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZES92259521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2571964e87f79a91845b19d4b123fb930c3028be11c1b13c4e2a4baff5c1593. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZK6M2339076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a56f8a4cf4770f4dca128ebb0ec7839dc9c7094b79b9c3a10c87875e08a9d8. 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/QZNWV2393667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeceb25e97e0c6f8482836c2e65622b874fc174a41a0a981c80be69138897da65. 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/QZHN42453998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e21cb68a79197283836c7ff62ba442bf9c9c1f73c6cfe6e8c29167655ff245. 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/QZK6J2459367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49109e37f971f40da91bc96b739f6f999b70054ab31169fa71db80b5925092c0. 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/QZWFN2454689.