Proton (XPR) is a new public link and smart contract platform that aims to improve consumer applications and peer-to-peer payments. Proton focuses on building a secure authentication and financial settlement layer that allows users to link non-monetary accounts with their real identities, access funds and buy cryptocurrencies, and seamlessly use that cryptocurrency in their apps. XPR is the token of the Proton chain, while Proton is a combination of Lynx wallet and Metal Payment.

Proton is the concept of an authentication account, where user Bob White can verify his identity and safely assert that @Bob is in fact his real account. In addition, Bob can link fiat accounts to this account and push and pull Fiat funds from daemon commands through nodes. This means that after KYC, @Bob can transfer funds between a special-purpose bank account or credit card and encryption in one quick transaction. It also means he can find and send fiat or encryption to his friend Alice Black (@Alice) knowing that she is the real Alice Black.