The company has now raised more than $70 million.
The round was co-led by Coatue Management and Shunwei Capital, with participation from Coinbase Ventures.
Auditing firm CertiK is working with Hdac to record Internet of Things devices on a blockchain.
Coinone has partnered with two security and disclosure firms to ensure compliance with South Korea's new cryptocurrency regulations.
A group of blockchain firms called Universal Protocol Alliance is launching a euro-pegged stablecoin that can be staked to earn annual returns.
Binance Labs, the crypto exchange's incubator wing, says it has has invested millions in smart contract and blockchain auditing platform CertiK.