First of all, a safe and reliable paper duplicate checking system should have high confidentiality. It should be able to protect the privacy information of papers uploaded by users and their authors and prevent leakage and abuse. The system should take strict security measures, such as data encryption and access control, to ensure the maximum protection of users' papers and materials.

Secondly, a safe and reliable paper duplicate checking system should have accurate and reliable duplicate checking algorithm. The duplicate checking algorithm should be able to accurately identify the repeated contents in the paper, including words, charts, quotations and so on. The algorithm should be highly sensitive and accurate to avoid misjudgment and missed judgment. The system should update and optimize the algorithm regularly to improve the accuracy and reliability of duplicate checking.

In addition, a safe and reliable paper duplicate inspection system should be efficient. The system should be able to complete the duplicate checking task in a short time, which not only improves the user experience, but also reduces the waiting time of users. The system should have good scalability, and can handle a large number of repeated requests of papers at the same time to meet the needs of users.

Finally, a safe and reliable paper duplicate checking system should be user-friendly. The operating interface of the system should be simple and easy to use, which is not only convenient for users to operate, but also can reduce the learning cost of users. In addition, the system should provide detailed duplicate checking results and reports to help users fully understand the duplicate checking results and make necessary modifications and improvements.