1) Collateral 2) Confirmative 3) Confirmatory 4) Confirming 5) Corroborative 6) Corroboratory 7) Proving correct 8) Substantiating 9) Substantiative 10) Supportive 11) Validating 12) Validatory 13) Verificatory 1) Confirmative 2) Confirmatory 3) Corroborative 4) Corroboratory 5) Substantiating 6) Substantiative 7) Supportive 8) Validating 9) Validatory 10) Verificatory 
• (p. pr. & vb. n.) of Verify
verifying 1. Proving to be true; confirming. 2. Establishing as authentic.