DODO is a new generation of on-chain liquidity solutions, which uses the proactive market maker algorithm (PMM) to provide pure on-chain and contract-fillable liquidity. DODO accepts liquidity providers (LP) assets. It gathers funds near the market price to provide sufficient liquidity. LP may face counterparty risk, so DODO will dynamically adjust the price to encourage arbitrageurs step in to limit the counterparty risk and keep the portfolio of the capital pool unchange.