| authenticated(verb, adjective, evinced) |
| certified(verb, adjective, test, expert, reliable) |
| affirmed(verb, adjective, certain, definite, sure) |
| confirmed(verb, good, sound, right, reasonable) |
| proven(verb, adjective, test, expert, reliable) |
| testified(verb, assured, supported, affirmed, evinced) |
| declared(verb, affirmed, evinced, testified) |
| demonstrated(verb, evinced) |
| documented(verb, adjective, evinced) |
| tested(adjective, test, expert, reliable) |
| validated(verb, affirmed, evinced) |
| verified(verb, affirmed) |
| vouched(verb, evinced) |
| witnessed(verb, assured, supported, evinced, promised) |
| asserted(verb, affirmed) |
| corroborated(verb, affirmed, evinced) |
| deposed(verb, evinced, testified) |
| substantiated(verb, evinced) |
| valid(adjective, sound, right, reasonable, rational) |
| approved(verb, adjective, test, expert, reliable) |