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 Ligero for Memory-Efficient ZK with MuthuZK Tech,Research,ID23.07.2025 TLSNotary with Dan and SinuMPC,ZKTLS,Tools16.07.2025 Local-First with grjte and Goblin OatsVerifiable Compute,Miscellaneous09.07.2025 check our ZK JOB boards