Zethu is a given name. Notable people with the name include: Zethu Dlomo (born 1989), South African actress Zethu Matebeni (born 1978), South African activist and writer Category:South African femi
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 0x539bee35ad89659e415f874cda078b41235de8d51d235033e22c5ee7394dfe6b. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c62eb60a-0df9-419c-a8e9-1e696a1c0c0b.json and https://artists.proofprofile.net/proofs/artist/c62eb60a-0df9-419c-a8e9-1e696a1c0c0b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).