IOST is a relatively early blockchain project. It was once called the fourth largest blockchain after ETH, EOS, and TRON. At the same time, it issued the token IOST. The IOST project tries to solve the impossible triangle problem of the blockchain through a new consensus algorithm, and at the same time has a voting system that is friendly to small nodes.

IOST tokens were issued on January 11, 2018, with an issuance price of approximately US$0.01 and a circulation of 21 billion. The total amount of IOST tokens is 90 billion, the current circulation is 18.7 billion, the current price is 0.007 US dollars, the total market value is about 135 million, the FDV is about 651 million, and the price has dropped by 30%.

The most important contribution of the IOST project is the PoB consensus mechanism, which selects and verifies based on community contributions and tokens held by an algorithm instead of a voting mechanism, and all nodes can take turns to verify blocks. This mechanism helps IOST accommodate more community members to participate in the election, and also helps the public chain achieve the goal of horizontal expansion and high throughput.

The IOST chain was founded by Jimmy Zhong and his strong team, and the mainnet Olympus v1.0 was officially launched on February 25, 2019. Different from other public chain projects, IOST focuses on creating ecology on the chain, finding a balance between high-quality projects, users, rewards, and user, and creating multiple featured projects such as chain games and payments. Currently, IOST expands the PoB consensus mechanism Create a multi-chain ecological layout compatible with EvM and Solidity. The criticisms of IOST mainly focus on the content of the imitation market, the rationality of ecological construction, and the ability to resist the pressure of huge orders.