PhotoChromic is powered by Ethereum standard tokens: -ERC-721 identity NFT as unique NFT representing a certain identity -ERC-20 $PHCR as a means of governance on the platform The PhotoChromic solution comprises of: -A Decentralised App (“dApp”): A slick front-end interface for users to connect his/her wallet and mint his/her PhotoChromic NFTs. -Wallet integration: Connection to major Ethereum based wallet providers, thereby providing users with full flexibility and autonomy when connecting his/her wallet to the dApp. -Integration with ENS: PhotoChromic builds upon the success of ENS, the most widely integrated blockchain naming standard, utilizing the system as the foundation for PhotoChromic’s SSI solution. -NFT generative art: Each PhotoChromic NFT holder will be provided with a unique digital representation of their identity using algorithmic art, which is created during the NFT minting process. To maximize decentralization and user control, the NFT artwork is stored on IPFS. -Software developer kit (“SDK”): SDK for integrating Photochromic identity validation, renewal and selective data sharing into other decentralized applications.