Altcoin News Climate, blockchain and CBDCs: an interview with HyperLedger’s Karen Ottoni April 22, 2022 HyperLedger’s Karen Ottoni explains that blockchains do more than just create cryptocurrencies: effective tools against climate change, they also improve the supply chain. About The Author coinmaker See author's posts Post navigation Previous: Alex Saunders issues a public apology and claims to be settling crypto dealingsNext: SoftBank leads $60M CertiK raise as demand for Web3 security grows More Stories Altcoin News SpaceX IPO update: Whale opens $22.3M SPCX long as synthetic price hits 30% premium June 12, 2026 Altcoin News Three signs that XRP price risks falling below $1 in June June 11, 2026 Altcoin News Audiera’s AI token BEAT beats Bitcoin, Ethereum as price surges 1,500% in a month June 11, 2026