Emmanuel Kwesi Danso Arthur (born 18 December 1999), known professionally as Kwesi Arthur, is a Ghanaian rapper, singer and songwriter from Tema. He rose to fame in 2017 with the hit single "Grind Da
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 0x7aa0bc7fee44b08fd2e119775b1f5d224f03d5781b3afe86e0b8190c7a194689. Chain 2 (Bitcoin): anchored in block 954047 (2026-06-17T04:56:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/417942dd-1296-43e1-92d1-6bcfe2278e11.json and https://artists.proofprofile.net/proofs/artist/417942dd-1296-43e1-92d1-6bcfe2278e11.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).