XEM is a decentralized cryptocurrency, which was developed by thunder network and officially launched on 20 15. The design of fast chain currency aims to solve some problems existing in blockchain technology, such as slow speed and poor expansibility.

Different from other cryptocurrencies, such as Bitcoin and Ethereum, fast-chain currency adopts the proof of importance (POI) * * algorithm instead of the ProofofWork(PoW) or stack proof (POS) * * * algorithm. PoI algorithm can better prevent 5 1% attacks, and users who hold a large number of XEM tokens are more likely to get rewards.

The transaction speed of fast chain currency is very fast, and the average confirmation time only takes a few seconds, which is much faster than other cryptocurrencies such as Bitcoin. In addition, the transaction cost of fast chain coins is very low, which is an ideal choice for small transactions.

There are many other characteristics of fast chain coin, such as built-in multi-signature function, strong expansibility, strong security and simple wallet. In addition, fast chain coins can also be used for decentralized applications (dApps) and smart contracts.

Generally speaking, fast chain currency is a kind of cryptocurrency with great potential, which has many advantages in blockchain technology. However, like other cryptocurrencies, its price may fluctuate greatly, which requires careful investment.