How to see

Whether the RMB you receive from selling Bitcoin, Ethereum, Sol, or USDT is black money, in fact, your counterparty may not necessarily know. So, how do you make sure you have no problem receiving your money?
The counterparty gives you non-currency funds. For example, the source of funds for ordinary people is wages. I have never heard of anyone having their card frozen after paying their salary. If you use Douyin, you should know that the currency circle where the bank card is frozen is the main market. Secondly, It is a foreign trade merchant, gold and various mobile phone hard currency merchants.
What money is absolutely fine?
It comes from the money given to you by the government and banks. Secondly, this person is not in the above-mentioned industry and usually works to get paid. If you receive his money, you will most likely be fine.