Johnny Reed McKinzie Jr. (born March 31, 1985), better known by his stage name Jay Rock, is an American rapper. Born and raised in Southern California, Rock signed with the Carson-based independent la
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 0x474ae9b304b03912ad7d87d0324ae64bab2e54582e727cf446d122306825d249. 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/3690666d-8da4-4e1d-83d3-32536e9e0cc4.json and https://artists.proofprofile.net/proofs/artist/3690666d-8da4-4e1d-83d3-32536e9e0cc4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pay for It (feat. Kendrick Lamar & Chantal)
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 0x5489c3d19d7e344c0b81d608ed043ba035a47d48294932b53337c05c22510308. 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/TCACB1407358.
King's Dead (with Kendrick Lamar, Future & James Blake)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5244ea43b3e28bec65e76c6ceb0d26a7372d87e9fa1921ae5c44108f7bafdfe. 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/USUM71714093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05714ba560a6e3b308fa66bb30162cdc440e3e45fa24f43db537340568c9e5a. 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/USA2P1950850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d8f57ce58a1a6555264fd9ca70f43a99caf8f4df05c1b509b16c27e544de41. 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/USUM71210785.
Black Panther The Album Music From And Inspired By
Tity and Dolla (feat. Hugh Augustine & Jay Rock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea5b17e9313874c0adf2542c2ca092434ff14442ea978309901c45755e4456f. 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/TCACR1649841.
Shot You Down (feat. Jay Rock & ScHoolboy Q)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9435de6624e0236d8149304d42c8d43a60bb5d567e8cf1cd6d3b1bd0ab788c2f. 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/TCABT1443742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a35dfc5dd5cd16c5d359f3bd4033cd8f75f57451f4456126a07d1ff030cb0bb. 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/USUM71400901.
True Story (feat. Jay Rock & Jay Worthy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827ca3a36de05d9153e88a84b0c70b86cc809b5e90594c41940229273bf86652. 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/USWB12102078.
Lockdown (feat. JID, Noname & Jay Rock) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0507ecf16cbaa8b20197dd53ecb3ae89a46c765c6d90ae1bc3d2d94d1902b0fa. 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/ZZOPM2003009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063a7270f660015e804a13d3f1256fb5231967f582fb558b663bf757f93f05cd. 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/USUM71400309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827ca3a36de05d9153e88a84b0c70b86cc809b5e90594c41940229273bf86652. 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/USWB12102078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d8f57ce58a1a6555264fd9ca70f43a99caf8f4df05c1b509b16c27e544de41. 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/USUM71210785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5079affcf7000613141c1cdb6db41525335c2e7cd2db6e57b3de61d079dc1614. 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/ZZOPM2003012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c43a2dd5ca2befaecff13f72bd29dec43b694646f0c2c0301edfff7abbb23d. 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/USUG12000371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3f06a8aa154c7f2c459cad3e5093d32fed610fe8f4b6d09f7c3ab41834815e. 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/USQY51176093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc004b01c8d0870da79dabef097f7be063a6cb0a6757650077967d1239dfe6fdf. 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/USQY51441808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe332aab4758aa40ae541b8c3b2170b9849b54843c0a6c82285aa33cba9017c63. 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/USQY51176107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafe36ce53678387ae02a0fb7b60e009cc752ca90e06376519bc68ba30f95461. 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/USUM71101892.