Ewart Everton Brown (born 31 March 1968), better known by his stage name Mad Cobra or simply Cobra, is a Jamaican dancehall musician.Huey, Steve "[ Mad Cobra Biography]", AllMusic, retrieved 2010-01-3
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 0x875714c0e2e4d8b67815bc49a8d8347ccc18cd4c8337547b967326fcdfa1118a. 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/cefba4c6-55ae-40be-a65f-ccc38b97a8b6.json and https://artists.proofprofile.net/proofs/artist/cefba4c6-55ae-40be-a65f-ccc38b97a8b6.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 0xf30a4d82e689895f099424aab2e9c2b005e9631bc26449961bcadae4226e3940. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USSM19201374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd063fe8147226ebb397c287a0d6ce9f2699b24b940adb2d7d023ed8bc2b157f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USA560957967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776da0f33bccb05187b3e9efd60b0c21c4131728af66f178492dfebb943a6c11. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USA560957969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36ad14d15bb04cf083e63a876ea9296479c3ef8078bb83bd1a3787beabd60bb. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JMC711301138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4394026706ca338677ae77e0fa7a0ac9d28b1af7bf4e7ceb07626d665281bd0b. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/JMC711301144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa496106b112625411ee9e6c8bd8ae58e4bfb49d7453e149861c4c1435bd3acb6. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USTKX1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b00b643ddd3d7f605da3ebf239debc39daa88d80bccb50b41e95020f4c00fa4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBLPF0014903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38baba7bb36bd964e181f515dadb07651f121641a51f2fad02b407afbc5c2f11. 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/GBE8H0000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0b5aa11f640476304f42068448a5720bedf119944e7cf389267df796ab78c2. 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/GBE8H0000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3a089604463460af1507cf12deba9b4730f909f27a04f97dbc122b149af6b9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBE8H0000017.
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 0x6ec07a753ddae288a2a9fefe0b988a2fa84d333930d34ce3fc7ab3af1c1565b0. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBE8H0000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697b9d561a04953c10659db6d4b9249dfafc1aa2507a4608c6506ed7fcadb896. 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/GBE8H0000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfcceaf6be1e25b3e1c9c307c8048a25340098643a30030041cc170c3197797. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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/QM4TX2334432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47a52a5792623f0fbbd2c69f15239336bf700b8673bd43284b9c52e98659614. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/GB8KE2503233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454ab7954eaff4b2b820dac0f793e30034dbc7bdb3f3b115a9ebbe15e3a3594b. 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/QMUY41500015.
Night Riders (feat. Travi$ Scott, 2 Chainz, Pusha T & Mad Cobra) [Neo Fresco Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfe9dd59920153db968b37e4e9416f761b03cc3ab1f33141c98fe45862615c9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMUY41500266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9f47019573037ab2fbb00d00ba97a6fcb809f55ac70b1968b0df79508d61be. 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/USVPR0208638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93f08abf4ead268e0c2c6d6bb39a2a6f893ec701a55f07f4d3a665cf1cdb58b. 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/GBVVQ1700287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc5803e77400033a226f612980ff9c8c84d43953b98106316bf4a77bd74d87c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USVPR0107281.
Night Riders (feat. Travi$ Scott, 2 Chainz, Pusha T & Mad Cobra) [Cesqeaux Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1d7f09676ec998c7b9b9437e57ef54b829d8acc648b53143e3c37b136b61e3. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QMUY41500218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa4f65f444ece18f0319468be4ad36d93b5b70de43c0073c45ba925d7ef3109. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/GBF6S1700001.
The Soul Of Richie Stephens - Deluxe Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf59cee1c453fa4155773fd8d58d8a6774ed6d164b527e6acb63e2c96fdfa8ef. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QM7282412130.
Ghetto Boy (feat. Bounty Killer & Cobra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423b321d7d91b57e9ccfafbf6d309869dc53bf56d222ab83c9794b4dd0f1540d. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QMCTU1500018.