Rozell Manely Brown (born October 6, 1964) is an American beatboxer and rapper, formerly a member of the Roots.Matsui, M (1999) Rahzel: The Fifth Element, The Daily, University of Washington. archived
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 0x208a571ef1ad28a34a4ca54af9df7cbe98bec4a7df3b7c2344594ac671e30337. 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/a5a3ef0a-85bf-40b9-a463-a96f501620fe.json and https://artists.proofprofile.net/proofs/artist/a5a3ef0a-85bf-40b9-a463-a96f501620fe.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 0xf6b334d40dc9792d39c81b049f7b18ebeb8e312e2d3ab6d3e44558589f1b5540. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/USMC19959036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ae345834a1076027831d960d1d825dc16f0f6c270443e79e390f93af3549c8. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/USMC19959040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b80e7d7a034ad392fd5dc378cd24dede6b9fa688b7dd71db814f98c16fe777. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USMC19959043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8205d0ceca5c78c93065a224970aa7c0c047a2153fe97a10c1ed72947221e5. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USMC19959338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3758f7626866a77121235e9de119a0f788fd7d5b747b50f2e2db900097ce27. 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/USMC19958855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bb40a2a814987abde496458e8963dbf3ea815fb725f3fd31965e539f34d110. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USMC19959045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35bb68e51c159723179afd85cca5f32bf37376ee1c6856e1af1863108640e36. 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/GBARL1801503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce794d0851d0099c5fa279ac4b83277349ca4dbc1db36ca088ff5900f9d2114d. 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/QM6P41757196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811366c0da942adb246c12a6a64b1fcb4e81df50c3294493736c0ec5de17b939. 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/USTB10300168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423d2fad171b614862349013456a611a2dd0f518ca3edb92df2d945da1fc7c88. 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/US6881000627.
BrainBender (feat. Ultramagnetic Mc's, Canibus, Prince Po & Rahzel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1814944e5a52b98f13f661e3987b8318bbeed81c858fc8188ad7f1d44f5ad247. 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/US6881000634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a3ae03b35b225544b8f3ecff08020e2165e7c1475717f20823abe015b7429f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QMFMF1491963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334892e241561ba0aaf32225d8b2840b3d26703e88f16e9bb232a175d42a4b3d. 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/USI4R0603884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67dd4106335cc72236dbfe5f08cee023c15edecfb05ded34251b773ce4aa1fa1. 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/US6881000559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157e3f8b01dc9da74d13ae456950d890bc302310e1859ea2af95f7a0a95e4710. 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/USMC19959033.
Rock and Roll (Could Never Hip Hop Like This) Part 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda7a69be31bac85500ee3fe6b2ae007bb915db2c80f817818874fa632c9ebe9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USEE10413012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b43209183371b39a57152c52d07a6ae77bffc981001a977d55c6fda6528da3b. 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/USAT20202582.
Shotta (feat. Rahzel) - Itchy Robot Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5296362f15696cc93e6e71af02092a46abb2b0cc1ce706bd8b2e698923c153. 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/USUS11201111.