ChainCatcher news, the futures protocol Contango officially tweeted that it will launch a public testnet on Arbitrum in a few days. Contango has received investment from Coinbase Ventures. When traders open positions on Contango, the protocol borrows in the fixed-rate market, exchanges in the spot market, and then lends in the fixed-rate market, providing physical delivery upon expiration.Additionally, the announcement mentioned that users who join the Discord community will have the opportunity to participate in the testing early; for safety reasons, the test version will limit trading volume during the launch phase. (source link)