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 Inveniam to acquire Mantra after turbulent year marked by OM crash June 17, 2026 Blockchain News Why banks are fighting stablecoins after shaping the rules June 16, 2026 Blockchain News LG, Arbitrum launch blockchain-based bid for $679B ad market June 12, 2026