In the past, you could cancel the record by surrendering the insurance, but now you are not allowed to surrender the insurance, so you can’t delete it.
If the original company has stopped your insurance, the new company is usually doing social security transfer. The previous company will not be prompted (if they check specifically before transferring, it can be found out, but based on my personal experience, it is unlikely). If the original company has not terminated your insurance, then the transfer will be done. If your registration fails, you will be prompted as to which company your insurance coverage has not stopped. At this time, he will know the name of your last company.
I personally suggest that you don’t pay too much attention to this issue. The first person to go there specifically It is unlikely that your last company will be checked. Secondly, if you are checked, you can say that you went in and worked for a few days and found out that it was not suitable. The social security record will only show the name of the company where you were last insured, not the name of the company you participated in. How long does the guarantee last?
Extended reading: How to buy insurance, which one is better, and step-by-step instructions to avoid these "pitfalls" of insurance