The target is not signed. I would like to ask if the platform account is registered and the real name is verified? If there is no real-name authentication and authorized signature, then the evidence chain is incomplete and the contract is invalid.

The electronic contract online conclusion process specification clearly puts forward:

Electronic contract is an agreement between natural persons, legal persons or other organizations with equal subjects to establish, change and terminate the relationship of civil rights and obligations by means of electronic communication with data messages as the carrier. This standard applies to all contracting parties who sign contracts electronically and conclude contracts in a way that meets the requirements of this standard.

Electronic contract conclusion system is an information system with the functions of identity authentication, electronic signature, contract storage and call, which can realize online conclusion and processing of electronic contracts.