Joseph Kirkland (born April 5, 1968), better known by his stage name Diamond D (or simply Diamond), is an American hip hop MC and record producer from The Bronx, New York City, and one of the found
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 0x8fc673351c4bba28d611aa73bebd1b2776b952ca0860ecfcecaaab7d8eb0fa47. 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/7bf004c7-5c70-4b5b-a292-d9ae55cd30cc.json and https://artists.proofprofile.net/proofs/artist/7bf004c7-5c70-4b5b-a292-d9ae55cd30cc.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 0xcb3d918446d896dfde12c6515edcc78955194717114c3b55cc8971581c1d8ac3. 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/USAE81277434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1949f31d16d489868a927fd38d715c864597809e4c23ab4d92a54fe6d95d6b44. 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/USAE81277438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e59ae85efb557c760ce8f4e3a7d8e8102e0146cdd4509f6f8141a686bfd05b8. 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/USAE81277439.
Action Like Charles Bronson: Best of Hardcore Hip Hop Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed84b0c9b50677755e647233503142316720d7e41d30b9e1d47c6312447313c. 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/USUYG1068418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998b54abfcfc2bcaf23ea06207c97983e1a65f6555da2c614ba7c5a4b3efa0b4. 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/USUYG1068440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375e35ae1ce432b8d73f334171d67bfee8b3626f69da9677430685df5212d9c6. 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/USUYG1119072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa6d0d92adc785de927fd0f29f8441123f14079bdfa590d0cd992ee96159554. 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/USUYG1566364.
T.S.N.Y. (feat. NEMS, SAIGON, PRAYAH & TONS)
T.S.N.Y. (feat. NEMS, PRAYAH, SAIGON & TONS)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d710becad9012bf2e055440cd41088709d6c9535f05088b1ec1f22afcd289b3. 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/USUYG1591320.
The O-Zone Files: Rare Demos and Unreleased Tracks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d953502785ec6abfd582a4da5f5ccb0895771955f7b19ee02e8999885dfa7d. 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/QM6N21969327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5738821e71fed87f3e8a0d8ef58d0548733aad6184a6cf555d1b4f7d635fc93e. 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/QM6MZ1991566.
Watch the Sound (feat. Diamond D & Grand Puba)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64bebe696a8e5383512a9ae21993c49da1118dfc2c142109289fe3108605fc2. 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/USSM10904573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9956492100fd8be89d18045e88445ddbe0eac957258e7888c1643016ea865905. 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/USA2P1696347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dab58d867bb9214915aa4185d62ea5ee88bf0e8a75536cefa6a94f14bc4af5. 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/USTB11900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33fb182cf446123478be7809c664de38834f1fe536a790cf8dbd46c9b5cfd9d2. 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/USTB11900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79197ca87e4ac9907daf3d0b7bc2f3be81cadf6f8d15a732b3e1fe6d58fb7508. 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/USTB11900017.