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IOST is a decentralized, ultra-fast blockchain network based on the "Proof of Believability" consensus method (PoB). IOST's objective is to provide the underlying architecture for online services that satisfies the security and scalability standards of a decentralized economy, led by a team of accomplished innovators and backed by world-class investors.IOST advertises itself as a "ultra-fast," "fully fledged," and "decentralized" blockchain network and ecosystem, complete with its own nodes, wallets, and a consensus algorithm termed "proof-of-believability."IOST's blockchain architecture is open-source and built to be safe and scalable, with the goal of one day serving as the backbone for internet services. To ensure that transactions on the network are safe and efficient, the researchers devised a "proof-of-believability" consensus mechanism.