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 0x01483ce1be96d37a4058f2b712abd049260c20a9650634c36360c09f69bbe327. 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/95dcc619-d071-4934-a793-ed8b621fa36c.json and https://artists.proofprofile.net/proofs/artist/95dcc619-d071-4934-a793-ed8b621fa36c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).