SUMMARY:

1. “Proven” by itself is an adjective;
2. The AP (Associated Press) Style Guide prefers “have proved” to “have proven”;
3. However, both “have proved” and “have proven” are correct

We hope this answers your question, albeit in a roundabout way, regarding the difference between “have proved” and “have proven.” If you have any further questions on this topic, tweet us @The_YUNiversity. Cheers.