The OST (OpenSea Traders) token and OST NFT will be airdropped to all addresses that traded on the Opensea platform during Q1 of 2021. In total, there were 194,133 trades between 59,868 unique users, all of which qualify for the OST airdrop.
Each eligible address is rewarded one OST NFT as well as 1 OST token for every trade order that they were the buyer or seller for. Claims can be submitted to the contract via the website for free (minus gas costs).