Polkadot, brainchild of Ethereum ($ETH) co-founder Gavin Wood, is looking to raise $60 million through a token sale. The token sale would push its diluted market cap to an estimated $1.2 billion. Polkadot is the project of the Web 3 Foundation which develops interoperability between different blockchains. As of now, Polkadot is slotted to launch in Q3 2019.