依据档案的记载出具的凭证性文件。
看管特务机关档案的研究所正在受到人们的关切，他们难以在法律规定的时限内证明70万人的清白。
The institute that looks after the secret-service archives is concerned that it will be unable to certify the purity of as many as 700,000 people within the time limit stipulated by the law.
当其他方法——数学证明、档案研究、哲学推理——更切合时，科学精神就推崇那一方法。
Where other methods - mathematical proof, archival research, philosophical reasoning - are more relevant it calls for them instead.
然而3年后，重达5吨的秘密警局档案，其整整装满了asuncion郊区的一个警察局，证明了他说的话是假的。
But five tonnes of secret-police files turned up three years later, stacked from floor to ceiling of a police station in suburban Asuncion, to give the lie to that.
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