GOAT Network has launched the V3 testnet of its GOAT BitVM2, advancing towards a Bitcoin-native zkRollup. This testnet leverages Bitcoin as the final settlement layer, allowing BTC to engage in financial activities without custodians or multisignature trust models. The BitVM2 mechanism ensures that any false claims or malicious actions can be contested, with resolutions governed by Bitcoin's mainnet rules. Key features of the V3 testnet include off-chain execution and Bitcoin-anchored transaction ordering. Future integration of BitVM2-GC aims to lower challenge costs, enhancing security verifiability in practical scenarios.