SHAREIn this episode, we sit down with Ethan (Bucky) Buchman, co-founder & CTO of Tendermint, to talk about testnets. We look into what they are, what purpose they serve and cover examples from Bitcoin, Ethereum, Cosmos and Polkadot. Links Testnets on Karl.tech The latest gossip on BFT consensus Bitcoin Testnet Ropsten Testnet Kovan Testnet Rinkeby Testnet Join the Cosmos testnet Join the Polkadot testnet ← Previous Episode → Next Episode RECENT EPISODES zkPDF and zkID with Vikas Rushi and Ying TongID,Tools,Wallets,Privacy13.08.2025 How ZK inspired AI Watermarking with Miranda ChristZKML,Miscellaneous,Research06.08.2025 ZKTorch & the Evolution of ZKML with Daniel KangZK Applications,Tools,ZKML30.07.2025 check our ZK JOB boards