Substantiate vs Proved - What's the difference?

As verbs the difference between substantiate and proved

is that substantiate is to verify something by supplying evidence; to authenticate or corroborate while proved is (prove).

(en-verb)

to verify something by supplying evidence; to authenticate or corroborate

to give material form or substance to something; to embody; to record in documents

(head)

(prove)

* proven (proscribed)