Cryptocurrency is a digital currency that does not rely on any real substance and makes use of cryptography, eg. Bitcoin, litcoin, BitShares, etc. It is a digital currency that is created, distributed, and maintained based on cryptography and validation technology. The characteristics of cryptocurrency are its application of P2P technology and the fact that everyone issues it. Crpytocurrency is also an online payment system that supports anonymous transactions. Bitcoin is the top cryptocurrency, and is recognised by the laws in many countries.

1. Encourage miners to mine

2. Prevent excessive small transactions from hitting the network. Due to the P2P network, the ability of transaction processing is limited. If everyone frequently conducts small transactions, the network will be congested, causing delays or even stagnation. So set a threshold, the amount of natural transactions will be reduced when there is a small transaction.

Since the transaction is a two-way charge, it means that the sale of a digital currency requires at least a 0.1% Withdraw fee to the platform.