DeFiChain’s new Ethereum Virtual Machine (EVM) layer, called MetaChain, marks a major evolution in its architecture. With MetaChain, DeFiChain can now support EVM transactions while still keeping the security benefits of its UTXO model. How does it work? DeFiChain introduced a new transaction type called xVM. These xVM transactions have no inputs or outputs, and simply contain the EVM data. This allows the EVM subsystem to verify EVM transactions separately, without needing to know about UTXOs. The xVM transaction concept draws inspiration from Bitcoin’s coinbase transaction. By segregating EVM transactions in this way, DeFiChain achieves EVM compatibility while maintaining UTXO security. xVM also opens up the possibility of adding new virtual machines such as the ones from Polkadot or Cosmos. This innovation also enables smooth integration with existing Ethereum tools like MetaMask. Overall, MetaChain and xVM transactions open up DeFiChain’s possibilities tremendously while upholding its core advantages.