Blockchain News South Korea will use blockchain to prevent counterfeit vaccine passports April 1, 2021 Blockchain technology is being used to cement confidence in the integrity of new health surveillance measures such as COVID-19 vaccine passports. About The Author coinmaker See author's posts Post navigation Previous: NFT investment vehicle set to go public in LondonNext: Spain Is ‘Close’ to Regulating Crypto-Related Ads in the Streets, Says CNMV President More Stories Blockchain News Dollar stablecoins could improve FX access but amplify currency runs: IMF July 12, 2026 Blockchain News Zcash targets July 28 launch for Ironwood network upgrade July 10, 2026 Blockchain News Bitcoin’s quantum dilemma: Bigger blocks or STARK proofs? July 9, 2026