John Simon Mseke (born March 27, 1980), popularly known by his stage name Joh Makini, is a Tanzanian hip hop recording artist and composer. He is one of the members of the Tanzanian Hip Hop group cal
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 0xffcaf872172aff6c0c035b1a767b50f257f7b6da69245dcce21eb97d2e272c21. 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/3466a008-94f6-473b-bc62-955a83199d40.json and https://artists.proofprofile.net/proofs/artist/3466a008-94f6-473b-bc62-955a83199d40.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 0xbc7a85aa7fc2d7b7509f97d9616297ac4d4754751d2ee15998f0d90e6ad0f689. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TZA1X2000773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a0dbd7212569d2c721d1c871d8a0f880d79e1c06b0329ce067e6d3962e559b. 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/TZA1X2200125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca50edbe224eba9dabfcf0489e90a45dfb791ef840ca529d178e4c739ac85d5. 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/QZNW72249975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6caf129e6bf63cd6f6016a1af8713e0941c26d38b3087fe00d68da484ba1ab. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-02T22:12:38Z), 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/TZA1X2000470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3227b19619f0afa36f179edfb057f764716a1622cf3af66e5f1293e5d02a1a6. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/TZA1X2000460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b619cab741d5920e021f391df4881cd0606a8a7418f1ea6cdd7e275dad351bb. 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/TZA1X2000461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bae621099d5882436e970f61b26cbc6fc00a9a8171c0d75fadedbd1d1dcd30. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:24:41Z), 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/TZA1X2000706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6caf129e6bf63cd6f6016a1af8713e0941c26d38b3087fe00d68da484ba1ab. 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/TZA1X2000470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e99cbfc9871ff4133951d607008aa9b3c6a44d52ac080529e4a7338a33e768. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:31:10Z), 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/TZA1X2300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a0dbd7212569d2c721d1c871d8a0f880d79e1c06b0329ce067e6d3962e559b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TZA1X2200125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6466e6beb116045200a180a222fb20534ccb95af5adf8fc390cab96e19cb5af2. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/TZA1X2300402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb023a98f694ad636c1b542ce4e3ed9c33354687ab0893d13b4b0170f66315c80. 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/QZQAY2459147.
Dah! (feat. G Nako, Joh Makini, Rosa Ree, Khaligraph Jones, Moni Centrozone & Stamina) - Remix
Dah! (feat. G Nako, Joh Makini, Rosa Ree, Khaligraph Jones, Moni Centrozone & Stamina) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0956de065913bd608f6d2d8b8edbf16f2f0b7ea4baf4ecdeb08eba03902952c. 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/ZA40S2400573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829772a99d2ecf85ec9337f9b4533e283c881637030d7eea2cf1152ddf386c0f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TCAGR2257040.
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 0xfa69f9f76ef3b1451be1a3bc66425d660301725fa0046bc56058c15bd2885dba. 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/UK43Q1806285.