Ultiledger aims to build a low-cost distributed ledger and account system through blockchain technology. ULT is short for the Token of the Ultiledger project's native asset. To some extent, ULT can be regarded as the "hard currency" in the digital realm. The pricing rules of all goods (including various tokens) in the ecosystem can be based on ULT. All economic activities will take ULT as the carrier; All relationships will depend on ULT as well. ULT, as the basic Token supporting the whole Ultiledger economic ecology, will have all the functions of money in social and economic activities -- measure of value, means of circulation, means of payment and means of storage.