Nocturne Labs, a crypto startup that wants to bring private accounts to the Ethereum ecosystem, has raised $6 million in seed funding. Bain Capital Crypto and Polychain Capital co-led the round, with Ethereum co-founder Vitalik Buterin, Bankless Ventures, Hack VC, Robot Ventures and others participating, it said Wednesday.

The firm started raising for the round in January of this year and closed it in August amid a crypto funding slump, co-founder and CEO Luke Tchang told The Block. It was an equity with token warrants round, Tchang said — declining to comment on valuation.

What is Nocturne Labs?

Founded last year in the United States, Nocturne is building a protocol that aims to allow users to transact anonymously within the Ethereum ecosystem. "Users will have 'internal' accounts …