UniChain is a DeFi-focused Ethereum Layer 2 solution to enhance liquidity across various chains. It boasts rapid transaction speeds with current block times of 1 second (projected to reach 250ms) and offers transaction fees that are 20 times lower than those of Ethereum. Uniswap has successfully secured $188.8 million in funding from investors such as Paradigm, Polychain Capital, SV Angel, and Coinbase Ventures. They have recently launched a testnet, allowing users to engage with the network and potentially earn rewards.