Question
Can something be true but unproven?
Yes. A claim can be true even before humans prove it. But until there is enough evidence, we should not treat it as established knowledge.
Answer
Truth and proof are not the same thing. Something may be true even if no one has yet proved it. For example, a historical event may have happened even if records are missing. A scientific fact may be real before it is discovered. A person may be innocent before evidence proves innocence.
However, the fact that something could be true does not mean we are justified in believing it strongly. Many things could be true. Some are likely, some unlikely, some unknown, and some false. The responsible question is not only whether a claim could be true, but how well it is supported.
This distinction matters for religion, gods, life after death, paranormal claims, politics and personal accusations. A claim should not be treated as established merely because it has not been disproved.
Honest reasoning therefore separates possibility from probability. It may be possible that a claim is true, but confidence should depend on evidence.
Evidence
Many true things were unknown before discovery. But many false claims have also been defended by saying they might be true.
Reasoning requires proportionate confidence, not automatic belief in every possibility.
Alternative views
Some people argue that lack of disproof is enough to believe. This fails because many incompatible claims cannot all be accepted simply because they have not been disproved.