Byron Dwayne "Guilty" Simpson is an American rapper and songwriter from Detroit, Michigan whose recording career spans more than 30 years. He is signed to Stones Throw Records, and is known for being
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 0xd6616b09589cfcda69db42efc2be07c6158339328e94d66f5d705dd9b0af35e7. 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/3320aaa8-e2e5-4bc7-916e-90a81c8aaaef.json and https://artists.proofprofile.net/proofs/artist/3320aaa8-e2e5-4bc7-916e-90a81c8aaaef.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 0xfa3f1f9b953a02373d2f2e381075bd68d8236be13267b480bc8c2b45795d13b1. 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/US2S70880002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5dba4e1a77795a0fffc96b142c272eb15701ac6cd19665d09aa37870cd3f18c. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/US2S70880006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdc534aa85e1f5c6215d12f64e4083526ebd89322d58d91fc43d9c71ff6b549. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US2S70880011.
Close Curtains (Backed with Unbelievable)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1d1eaec80f367b1c51a67de45f9cd0d666c29307c13695286507a02acaf591. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/US2S71557009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4720600a833b95032278d76cd118b4a25004cf98f46ec892937ac8a5d964d8. 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/QMFME2167697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa830bafab097fcaadaf9ff7fe4c7f6872ec6744d8a0a8311d473a708c8899cdc. 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/QMFME2167700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99f96925239b2809824c6be74b1650e73f5770af578decbc489163eef6f7011. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMFME2167702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece0b32f808741037eab726e3ed8891e071f0c1120c62c18d78aa958b032a6c9. 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/QMFME2167704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e677250f69a8f88f0fd25a13a5831788f5cc0aa6b33c7051af604b549d65528. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMFME2167706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f51225dc5503f0273ec580e68c7f385925298dcc1dba597ccb3e777a13d074f. 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/QMFME2167707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9479a5b4dc4bd19ed3e9d56f30209c53586cb471b3ed65bd7a9e55d696c256. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/FRX452430829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3e4359bdcb183f3c43078dd455ccaabb21929c28281bec30eec610df9f6c10. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/FRX452430831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8701718cbfe310e05e0d332ca7f51834768145b1ed87553cd09e62ab5f7eca0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRX452430832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd7d2d50d6f2a38abdb1620dbba23d4e215655756f9126567450045a4e81090. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FRX452430833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a1b427bbf6ac4dfa500ee79ad10875ca0ec500ae17a571a44ea32574062a47. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FRX452430834.
The Shining – the 10th Anniversary Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7bbb686ea64868bc0d6677645fd9a12b0ca34f4d59266e955f55682ae9b98e3. 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/GBEQT1600090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ebe39cbcac447c1a11ef87b377a156dfa59431775aabf3b803c8e7237b9aba. 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/GBEQT1600092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06ec52729cc8680eb467c9e38cdfc7679b8a53ca1b0c28065a252033abd9344. 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/QZTAS2323056.
Our Vinyl Weighs A Ton - This Is Stones Throw Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a405110fac86d3d6f89251fc3fee4965efa33de1d473d83f972ec54b2ea87b1. 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/US2S71284003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a21836f9162aa147a8d1faa9f79c6687ffec24c3e07be573e0255e8803c4336. 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/USLZJ2275649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679a1df92a8b25e67333118a4af29bdba7e2e4064a3384ac2554c55129d37603. 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/QZCE61802035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45861000fbe75e0839342d8348600d85c515cf54feff72eb80104fc2726c43d3. 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/US6YF1900172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4dff41157d5067cb10ee7519afa639d4beeb108f9406a2b7ec07bbd682658cf. 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/US6YF1900035.
Murdah Type Thinkin (feat. Guilty Simpson) [Small Professor Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70af694697ff5bdfa72f01deec0b0c491d19050981b52b77734f8d7b31e633d. 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/QMDA71376856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30da105d503f0aab960d1d546076508b6166395909107d279527da5dc0085c1b. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FR5R00906729.
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
The Guns (feat. Guilty Simpson, MED & Pok Dog)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa738b64408a15556b804216a0a8603367d3e9a51c8388938ebe5f17f9e606b. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/US4UZ1200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a77c6e8bc83e339c805aff5964dc4cc1d81b71c72cb984a5eee4582125a3a4. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QM6P42360133.