Index Chain is First private hybrid currency of POW / POS / MASTERNODE based on blockchain, a framework that is built on the basic protocol of Bitcoin and incorporates multiple improvements and additional technologies in that protocol to make it perfectly anonymous, secure, economical, and efficient for all the users. A wide range of the technologies have been used in their latest and most up-to-date versions, and all the flaws in Bitcoin’s infrastructure regarding security and anonymity have been addressed appropriately. A hybrid PoS and PoW (X16RV2), Sigma Protocol, Dandelion++ technology, Masternodes, Lelantus, and much more has been unified into one absolutely anonymous currency – Index (IDX).