Unstoppable Domains, a US-based company that’s building blockchain domain names, launched ‘Login with Unstoppable,’ describing it as the first functional non-fungible token (NFT) single sign-on service for Ethereum (ETH) and Polygon (MATIC) – with more than 50 companies supporting it at launch.

Per the press release, Login with Unstoppable allows its users to share data – including NFTs, email addresses, and off-chain information – with applications they use, using an Unstoppable domain.