Right, the evidence is accurate and true. You do not seem to understand that one piece of evidence alone is usually not proof. One can have verifiable evidence for a concept and the concept would still not be proven. One example is abiogensis. We have all sorts of verifiable evidence for abiogenesis, but we do not have enough evidence yet to paint a clear picture. Don't conflate evidence with proof. Enough evidence is considered proof, that is proof beyond a reasonable doubt. But one usually needs more than one piece.
You make some good points. Evidence is not the same as proof. I have been saying that since I came to this forum and I posted the definitions.
But verifiable evidence is different from regular evidence, because it meets a different standard. If we had verifiable evidence that God exists, we could verify that God exists.
You cannot compare science with religion since the evidence is of a different kind. No matter how much evidence we have for God's existence or for a Messenger being from God, we can never verify either one of those the same way we can verify scientific facts. That is why we can never prove God exists or prove that Baha'u'llah got messages from God, no matter how much evidence we have.
We can prove it to ourselves but we cannot prove it to everyone else.
For evidence to be reliable it has to be verifiable. The two go hand in hand. One piece of evidence is not "proof" but it can help one's argument. Do you have any verifiable evidence for your beliefs? If not you really cannot say that they are rational.
It is irrational to expect to have verifiable evidence for something that can never be verified. God's existence can never be verified so it is irrational to expect to have verifiable evidence for God.
It is also irrational to expect to be able to verify that Baha'u'llah got messages from God. Since we cannot verify that God exists, how can we verify that Baha'u'llah got messages from God? Even if we could verify God's existence, how could we verify that God spoke to Him, if we were not the one getting the message? So we have no choice but to trust Him, that He is telling the truth, or reject Him and conclude He was lying.
In order to determine if Baha'u'llah was telling the truth all we can do is look at all the evidence that indicates that Hhe was telling the truth. There is plenty of that and some of that evidence is verifiable (testimonies to His character and accounts of His life, accounts of the history of His mission, the authenticity of His Writings, fulfillment of prophecies in the Bible and other religious scriptures, predictions He made that came to pass).