Cédric Matéta Nkomi (born 30 January 1992), known professionally as KeBlack, is a French rapper and singer of Congolese origin. He is signed to the record label Bomayé. Career Youssoupha and his re
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 0xb10023a66cc415da72373fa46bbb5bb45499e8bf00865c01185908ecdbad7e72. 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/60a50058-b874-417d-83ad-b7ebfd970849.json and https://artists.proofprofile.net/proofs/artist/60a50058-b874-417d-83ad-b7ebfd970849.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 0xed4c1232fc4e9dbd8c327c4e7c34917de7ecc803b9cbdc7332e0d1f2bc8af40c. 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/DGA092316630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5c4bad14551b9316ed9ce2a7697f311980f220b091130ed02ba6289175bd69. 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/FR9Z12300124.
Ça va bien se passer (feat. Naza & KeBlack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344bba0f543ff60fe2ddd40e2636d64a405a5d0e055251f087e9448aefcd4b0b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR9W11907597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda48b57a496e6cde82f53de4ef9b88275086566f6c78a6d8acecc7d54196b633. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR2PY1600500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3cd0edc24173a2d5351d07b49fedf33e7c9c41887d9768dd5f187644d2c900. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRZ082200358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3cd0edc24173a2d5351d07b49fedf33e7c9c41887d9768dd5f187644d2c900. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRZ082200358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344bba0f543ff60fe2ddd40e2636d64a405a5d0e055251f087e9448aefcd4b0b. 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/FR9W11907597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a11344cee069a063e141d6ad88879338b836b4af70421aa03ab5056e9403ed. 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/FRU781704075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a11344cee069a063e141d6ad88879338b836b4af70421aa03ab5056e9403ed. 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/FRU781704075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4795066ad304edc2947caa36cd4888a186a450172ab567d94d692a148281cc9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX282123387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f90b166ac5fddc06feda15234bec0ca8452a17d3fd425f75ca0a302e0bb74c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRZ041700645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3feb5b99782c5bd86af83a32d352cbad971a7f309b30e41d7f48b02c0bb698. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR9W11704607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f09f0a0090ba21d0e21e4d7a16d48f1678e3023a4e2d4494a3b90929e65815d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRZ082000426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c7d7df92507e3321f5ddd283c33e81a0947eaec225f35131c2e52cc41cf3cc. 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/FRUM72101783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42909e8fcac5b90c58ecb74338aff28d00d099d41a3f364ca69f91b935bfb46. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRPZ92421430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fbd2d62d619507ecbd2114254b76b0bfa475fe0da054df4dc491e3d7042909. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR7U61401042.
Personne pour rattraper l'autre (feat. KeBlack & Naza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167e4d986a9798975e64826e6afaabf1a65ce8d4296ab95184975aa90534cc2f. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FR7U61401072.
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
Ça va bien se passer (feat. Naza & KeBlack) - DJ Wiils Remix
Ça va bien se passer (feat. Naza & KeBlack) [DJ Wiils Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8bc699405e17f3c7231fe89f8726372651bed50435daf958b11a0110257183. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/FR9W11914943.