Resetting Testnet, SigHash & Dashboard ~ Bitcoin Op Tech #11
World Crypto Network
Bitcoin Optech #11 covers Core 0.17 RC2 testing, a new Optech dashboard, and testnet reset proposals—including replacing PoW with signed blocks for predictable disaster drills. Johnson Lao's extended SigHash flags (via BIP 143 witness updates) let hardware wallets safely execute coinjoin and enable per-party fee bumping while preventing counterparty bloat attacks. Key merges: Bitcoin Core removed

https://relay.towardsliberty.com/43a9496be2af5f5492640aa18a5b63bbc2a6575d1e0ded17ba0d90287b253ab6.mp4