1) Affirmed to be true 2) Authenticated 3) Bore witness 4) Certified 5) Certified under oath 6) Corroborated 7) Documented 8) Echt 9) Established as genuine 10) Genuine 11) Said in court 12) Said under oath 13) Spoke on the stand 14) Swore 15) Swore to 16) Sworn 17) Vouched for 1) Authenticated 2) Echt 3) Genuine 4) Swore 
• (imp. & p. p.) of Attest
[adj] - bearing the signature of a witness attesting to something`s legality 2. [adj] - asserted as true under oath 3. [adj] - established as genuine
authenticated adjective established as genuine