Poku is a surname. Notable people with the surname include: Abena Osei-Poku (born 1971), Ghanaian businessperson Ernest Poku (born 2004), Dutch footballer Ernest Owusu-Poku, Ghanaian police officer F
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 0x0eeffba348915fc0ff5a8b7656c7687559196b689fc8b78f010fc4a380f5f46c. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb511b28-7fc6-4091-bb18-c8c4d39b91f1.json and https://artists.proofprofile.net/proofs/artist/eb511b28-7fc6-4091-bb18-c8c4d39b91f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).