ENVELOP (NIFTSY) (https://envelop.is) is a flexible cross-chain tool set able to give any NFT new functionality (economic set-up, on-chain royalties, rental mechanism, time/value/event-locks), protection of devaluation and anti-fraud system. Now easily implemented in GameFi, Marketplaces, Art, Metaverses and non-pledge NFT-rentals. Project’s long term aim is cross-chain tokenization of payment channels (rollups) to intensified unused liquidity. What will lead further to the world’s biggest market — derivatives — ENVELOP is to create first secured decentralized derivatives. ENVELOP DAO consists of three main parts, binded together by NIFTSY token: 1) Protocol to add the digital assets inside NFTs and set on-chain royalties; 2) Oracle to score the collateral and assess the quality of assets inside NFTs; 3) Index to hedge the position to the whole NFT market — becomes one of the first decentralised and collateralised simultaneously market indices for NFT and related assets (synthetic, among others).