1. First, check whether the electronic contract of Ping An Pratt & Whitney has an electronic signature that conforms to the electronic signature law, and check whether the electronic contract has information such as time stamp, serial number, effective time, public key and private key.

2. Secondly, check whether the signature on the electronic contract is handwritten, and confirm whether the signature is handwritten or authorized by yourself.

3. Finally, check whether the electronic contract contains false propaganda or fraudulent content.