Leor Dimant (, , ; born December 18, 1972), better known as DJ Lethal, is a Latvian-American DJ, musician, and record producer, best known as a member of the groups House of Pain and Limp Bizkit. Ea
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 0x29c0ad0814b219e3a1244b7dfffe74fb94c2cd328a13937fc663d7155ff8f6c5. 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/f7a0f528-9428-45d4-a053-523aa0076aa3.json and https://artists.proofprofile.net/proofs/artist/f7a0f528-9428-45d4-a053-523aa0076aa3.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 0xf532d3b5ead8994f2699aedb1fb6cb562e1e8bbff7a13c2b6d3fe19fe7ad6382. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USA2P2207519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf532d3b5ead8994f2699aedb1fb6cb562e1e8bbff7a13c2b6d3fe19fe7ad6382. 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/USA2P2207519.
Space Boogie: Smoke Oddessey (Digitally Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb1b634e7b6b2eac1a8d8828613bf9ed590baf4290c2ce16014c80b111f2155. 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/USGZ21243258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19b56ac3b2460a8442696c913ffc20de52d5144ade1e683166c8147fa42b74d. 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/USGZ21243259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb1b634e7b6b2eac1a8d8828613bf9ed590baf4290c2ce16014c80b111f2155. 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/USGZ21243258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf532d3b5ead8994f2699aedb1fb6cb562e1e8bbff7a13c2b6d3fe19fe7ad6382. 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/USA2P2207519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ae53f4b998f158595a2d91321e88572fb8af247d1073b09495fab0817170c8. 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/USIR10120412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1193aa9ea0971ed79311aa32e99def77c3a1f7b9bb6efbd7b43178682090283b. 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/USIR10120416.
Counterfeit - Lethal Dose Extreme Guitar Mix (Album Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37736be8177df68eaba670cdc8aa3b72d3b015a396e52e302f39ce4c510d79ee. 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/USIR10120417.