Because the transaction details in ordinary stock software are not a single transaction, the transaction details here should be many single transactions. General software is invisible, but it can be seen with special software, that is, payment software can be seen.

K-line (candlestick chart), also known as "Yin-Yang candle", is a chart reflecting the price trend. It is characterized by recording a lot of information in a line segment, which is quite easy to read and understand, practical and effective. Widely used in technical analysis of stock, futures, precious metals and other markets, it is called K-line analysis.