YottaChain is a public blockchain based on exclusive technologies, economic models and governance structures, it aim is to connect global (or interplanetary in the future) computing resources and with storage resources, to form a vast planetary level computer, which enable every one to easily own and then make people much easier to enjoy computing power and storage capacity like today’s super giant Google/Facebook. Furthermore, YottaChain can also provide convenient, reliable and cheap storage and computing services for other blockchains, such as storing unlimited transactions in a single tiny block. By YottaChain, the digital currency of contributing storage resource is much more than what is needed to buy same storage volume. This unique model will efficiently encourage storage owners to join YottaChain. Owners who own unique storage resources and computing resources contribute their resources to YottaChain, they could not only obtain more resources than their exclusive resources, but also can obtain additional tokens. YottaChain is developed on the basis of IPFS (Interplanetary File System) and expands a lot, like a super IPFS. In short, YottaChain overcomes IPFS’s major defects and becomes a perfect system. If Suppose IPFS is equivalent of DES (Data Encryption Standard), RSA and MD5 (Message-Digest Algorithm5), YottChain is equivalent to the AES (Advanced Encryption Standard), ECC and SHA256. In other words, More generally, IPFS is compared to two-dimensional, YottaChain is compared to three-dimensional.