The phrase "at corroboration" is not correct and does not convey a clear meaning in written English.
It may be intended to refer to the act of confirming or supporting evidence, but the phrase lacks proper context and structure.
Example: "The findings were presented at corroboration, but the evidence was insufficient to support the claims."
Alternatives: "during confirmation" or "at validation".
Both Soviet and American experts would characterize his notes and sketches as relatively inconsequential, providing at most corroboration of details already known to the Soviets.
While Trump said Thursday that he would soon present evidence proving that his accusers are not telling the truth, he offered no such corroboration at the rally Friday in Greensboro.
They were merely glad to have, at last, divine corroboration of their experience, to hear — and it was a tremendous thing to hear — that they had been lied to for all these years and generations, and that their captivity was ending, for God was black.
Only the General's testimony and corroboration at the court-martial saved the guard from a lengthy prison sentence for having fainted while on duty.
But my first grade teacher said I'd be President someday, and if someone was going to go on national TV to repeat that the assertion they should at least get corroboration from the gym teacher.
Validation of children's ASD diagnoses was previously examined by selecting 40 children at random and corroboration of diagnosis done by using standardised assessment measures or clinical notes.
Prior cross-sectional studies also have found PVC materials in the home to be associated with child asthma and other respiratory symptoms (Bornehag and Nanberg 2010), and these results provide at least some corroboration for the current findings.
Reporters at The Washington Post also sought corroboration but were unable to substantiate Ramirez's allegation.
Fortunately some corroboration is at hand, for it turns out there is another record of the chair.
A16 NEW YORK/REGION B1-8 Senate Inquiry Studying Evidence on Torricelli A government official said the Senate Ethics Committee had received receipts, witness testimony and other corroboration concerning at least two gifts to Senator Robert G. Torricelli from a political donor.
