A more thorough explanation:

An attestator is a person who verifies the authenticity of a document or signature by adding their own signature or stamp. This makes the document attested, which means it is considered authentic and can be used in a court or held as binding on the parties involved.

For example, if a person signs a legal document, an attestator may be required to also sign the document to verify that the signature is genuine. This is often the case for important documents such as wills, contracts, and deeds.

Another example is when a notary public acts as an attestator. A notary public is a person authorized by the government to witness and certify the signing of legal documents. By adding their own signature and seal, the notary public attests to the authenticity of the document.

These examples illustrate how an attestator plays an important role in ensuring the validity and authenticity of legal documents. Without an attestator, there may be doubts about the authenticity of a signature or document, which could lead to legal disputes and complications.