Hello. You have not submitted the documents to which this question refers, which makes it impossible for this question to be answered. However, I will try to help you in the best possible way.
In summary, we can say that a document presents evidence when it presents facts about something. These facts can be proven and often prove other documents, presenting truthful information on a given subject. In this case, we can consider that the documents to which you refer provide evidence, showing historical facts that can be proven by other sources.
