Union Square Ventures, a prominent venture capital firm that was an early investor in the cryptocurrency exchange Coinbase, has made a significant investment in Mirror.xyz, a crypto publishing tool, at a valuation of $100 million. The startup, founded by Denis Nazarov, a former crypto partner at Andreessen Horowitz, provides a platform for writers to crowdfund their projects using non-fungible tokens (NFTs) that are verified via the blockchain. In recent seed financings, Mirror.xyz has raised...