Odaily Planet Daily News Spark, an on-chain order book development project based on Fuel Network, announced the completion of a $1.5 million Pre-Seed round of financing, with participation from P2 Ventures, Curiosity Capital, Unicorn Ventures, and Fuel Network. Spark can be seen as a DeFi super application on the Fuel network, integrating a series of financial services such as perpetual contracts, order books, and lending functions. It also introduces a multi-collateral full-position margin system, supports diversified asset deposits and complex risk management liquidation protocols, and uses order books and tools to facilitate non-custodial interactions.