Merlin Chain is a Bitcoin Layer 2 powered by Bitmap, based on the native assets, protocols and products of Bitcoin Layer 1, making Bitcoin interesting again. Merlin Chain aims to amplify the asset potential of the Bitcoin ecosystem as a whole by enabling the assets, protocols and user ecosystem of the first layer on the second layer, such as building a metaverse that users can easily access based on Bitmap, and building DeFi protocols based on BRC-420 to maximize the duality of graph and currency.