Distributed storage network Filecoin has announced it will launch its highly-anticipated mainnet on October 15th of this year, three years after its initial coin offering, which raised $205M in 2017. At the time, this marked the largest token sale in history. Though a mainnet launch originally scheduled for mid-2019 was delayed, over 400 miners participated in the project’s ‘Space Race’ testnet phase that year. Around 3.5M FIL tokens will be distributed to Space Race participants.