Is Jinshan office verification code a loan?

Not necessarily, but it's best to be careful not to disclose the verification code at will.

It is possible that the other party randomly filled in the mobile phone number and sent a text message.

The so-called loan verification code actually means that customers need to provide their real-name mobile phone number as contact information when applying for a loan, and will send a verification code message consisting of several numbers to this number. After receiving it, the customer submits the verification code information to the lending institution/platform to confirm the identity and verify whether the mobile phone is in use.