Lateef Kenneth Daumont, better known by his stage name Lateef the Truthspeaker, or mononymously as Lateef, is an American hip hop artist. He is a member of several hip hop groups such as Latyrx, Latee
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 0xb5f26bf960e02997ecdea4703c80603d62d9c74a966a7d1ab5ddf09005a9c867. 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/5305ff37-0d32-4ba5-a5fc-17e01b7a14ae.json and https://artists.proofprofile.net/proofs/artist/5305ff37-0d32-4ba5-a5fc-17e01b7a14ae.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 0x4e16a88dc98f5b47c335e223d1abffcdd7eaf0d7207eee54a6f4f05f44e14a8e. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:45:50Z), 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/FR6V80086421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e86867bfdfd3abc3c9e32943e058b2ef99fb17b20d4f7e3a9134af1f1d3fb6e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR6V80086423.
Oakland - feat. Del The Funky Homosapien & The Grouch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15804e587d6e764600dcbc86c344eef98b67ad151884dc1e38675a69ca94996. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US2P21100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f8a28eda3090a63f583a44d020652283f6151287e1533e6ec6bc24e64838c1. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:41:17Z), 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/QZGLS2506580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9226293fd89f082756cc8511174354d9dd8701e9e45941d35caf1c95b959a621. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZNJV2541006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1f214ef596c0af83b4ed306eb841a56807fe5d1ed133393e01bab96d2653b5. 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/USR8J2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc8d83798e83e0439b39d7ac2f642bf2f0e50be99b958a878a72e90e95f294c. 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/FR9W11002040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799d1cc695210b2e85a877277ad2b40ec62a3a105e30349fde3baec4649d7846. 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/QM6N21448579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690ddfe0234897730a0c1f188cc0ca6686e46d0bdf34afcdcefd053c6d7dde4c. 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/FR4EO1800073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dce6c288b313cad09f15806ea8cd71f01ceabb4295b918d5410384b9b17bb34. 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/DEM090400114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969e0982a0c76cde4bf120a08c2f901546e319118340a1f4f02dda1bcc5cdb12. 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/GBUM70601651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137b8139beffc6b7fe96147a5225b594786ed4fd2e179e3e75bef8cea7141003. 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/QM4TW2549979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd3d8ccf178f0410027a934e31b9084821781e153394d959724ad30bfca3881. 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/GBAQH9800044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa911c13e39192df9ab2ad96a3caa8ff48cfac6cc0d0f10bfdd80e57ed3b14f2d. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBAFL1900212.
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 0xe30cdde7c6b8281b47f5a8dc444d93a32eebad54932cdb9ccfed5f52aa7901af. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USR8J2400002.