According to official news from Odaily, the hybrid on-chain exchange Gravity has completed its seed round of financing, with participating investors including ABCDE, Matrix Partners China, Delphi Digital, C² Ventures, etc. Gravity plans to launch the testnet in the fourth quarter of 2023 and the mainnet in the first quarter of 2024. Gravity is an on-chain trading platform that uses an order book model, providing options and futures trading, and uses Validium technology to ensure that each users transactions are invisible to other users on the chain.