Kareem Dennis (; born 23 May 1986), better known by his stage name Lowkey, is a British-Iraqi rapper and activist from London. He first became known through a series of mixtapes he released before he
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 0x7e2caa4aed696e3e2521e88f8931c0376a5c256206c2a3a33024c63b08dfa04e. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93e30d13-8bc2-4cd3-8ad8-00814665765d.json and https://artists.proofprofile.net/proofs/artist/93e30d13-8bc2-4cd3-8ad8-00814665765d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).