Blockchains, if translated directly, block (Block) is a collection of information that is stored as parts. And continue to bring hundreds to each other Like a chain (Chain), with a computer encryption method for security. That makes it known that the information was collected at any time, has it been modified or not All information is transmitted and distributed to all computers in the network. Therefore the information that has been written down Therefore, it is reliable because everyone in the network can see the change at the same time, if anyone wants to fix it, there is only one way to fix it on everyone's machine in that network, which is possible. Very difficult when the network is big enough So when we adopt blockchain in cryptocurrencies by collecting the amount of information that everyone has The total number of transfers each time everyone goes into each block, and so on. And spread it to everyone to know Makes the digital money transparent Safe from editing by anyone And most importantly, when we spread it to everyone This reduces the risk that all of the systems will go down all the same, resulting in the loss of stored information. Bitcoin with a global network from rewarding people who help each other in the network. It is a reliable digital currency. Can send digital money through the Internet network to anyone in the network in a short time. It just stores the information of the transfer in a blog, no need for a middleman. Importantly, there are very low transfer or remittance fees compared to real money sending nowadays. It is these qualities that Bitcoin has succeeded in making it accepted by people all over the world. After Bitcoin coincides with blockchain technology that can solve many problems. The points that have never been done in technology before In particular, the security of the information cannot be modified. Transparency of information so that all parties can see the same information. Optimization to reduce middlemen Blockchain is now being used in many different ways, in many industries, not just limited to cryptocurrencies.