What's the difference between "proven" and "proved"?
prov·en ( v.)
A past tense and a past participle of prove.
Having been demonstrated or verified without doubt: “a Soviet leader of proven shrewdness and prescience” (Joyce Carol Oates).
v., proved, proved or prov·en
Conclusion: Proved is used a past participle or the Simple Past, while proven can be a participle and adjective at the same time.