Trumaine Barnett-Epps (born September 19, 1987), professionally known as DJ Tab, is an American hip hop DJ, record producer and entrepreneur. He has worked with DJ Khaled, Chris Brown, Bow Wow and J-K
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 0x9bb3f408d06c8d29ddf190b298fad82fb0bd1fd901a5949ad2705d83afc8d75e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5893a6ae-8270-4f87-a6ec-08bbe8ed0fb3.json and https://artists.proofprofile.net/proofs/artist/5893a6ae-8270-4f87-a6ec-08bbe8ed0fb3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).