determination, finding - the act of determining the properties of something

authentication, certification - validating the authenticity of something or someone

documentation, support - documentary validation; "his documentation of the results was excellent"; "the strongest support for this this view is the work of Jones"

monetisation, monetization - establishing something (e.g. gold or silver) as the legal tender of a country

probate - the act of proving that an instrument purporting to be a will was signed and executed in accord with legal requirements

cogent evidence, proof - any factual evidence that helps to establish the truth of something; "if you have any proof for what you say, now is the time to produce it"