Njang Mengu Collins (born 18 November 1992), known professionally as Kocee, is a Cameroonian rapper, singer, actor and songwriter. He hails from Bafut in the Northwest Region of Cameroon. Biography
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 0x075e78ad21113731d01d76924442b56ea3049b9a554a56cce9608c2df8b04683. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9154bc6-fbca-4744-983b-dd8f31278c44.json and https://artists.proofprofile.net/proofs/artist/a9154bc6-fbca-4744-983b-dd8f31278c44.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 0xa80512d410fdcb274e16b7e1412aa0479258dad980589ce3297b23c35101025f. 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/FR2X42394734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774736b8451e240c470c5d1a2605db2fca9161daf03aebcfcf532d4900640787. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR2X42394735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0baa10d8a40bec93d06c2f2c0b98a6b5e318113c4d09218afa422b12e4de088a. 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/FR2X42394736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b8f2a4ddf88c7a00b90d556d562e05565cfa18a1318d4758967403c21f0923. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR2X42394737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12542f83386e9e0ef5d40d12c9d8a5673d1088018b77dc243b461687d2df03c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR2X42394738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0372831c32c7002a1fb536f1154e001139b56ca0db32bbec183509489b18fb. 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/FR2X42394739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc67f5ea402491fe432ccd0c566873f038365df29c8bf99221b58605b77ac52e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR2X42394740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498ec9a7f995284a9904d29367bc43593a5e19c0402e452d1d1b255a0f82bdc5. 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/FR2X42394742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d42a25caf14efbdc70786c84daed2643f1d1117dc4892ad24bf152af297930. 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/FR2X42394743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea148658bd8ce1e1c940a3598c712de893e0cce8d441384120996630f16f114. 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/FR2X42394744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a6e30c5ec4da2e4eaa3ff5bf8f3e2dd0305d328dfab504a3f2126617e4aedd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR2X42394745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66470d43f67843b7d7ef58c740e1ba7c811601e4f5499b3f45888efe8c2ee8b1. 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/FR2X42394746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8a08b88b19bf951a5978b1959b0341092475e7438dd8ae9c719385db800d00. 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/FR2X42394747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9d588e81bb78a20de171560bb56ea84121085ef06b37fe0cf26d041012e8f6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR2X42394748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4879b967a6161cca42591065db49bda8f4bcfa0a26d8f438629027f51431e1. 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/FR2X42394749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b10053a875d2e02be60d89dd56e9476a4988f5620f669937bb1a45c73f9585. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR2X42394750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0372831c32c7002a1fb536f1154e001139b56ca0db32bbec183509489b18fb. 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/FR2X42394739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef66bbd87ee7406e7b2cf4610c2691631f2d08e9e365e92448070a1349c29cb4. 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/QZNJV2597577.