There are no direct evidence that the universe is eternal.
As to proof, you haven’t shown any.
if you understand what PROOF is, the ways scientists and mathematicians understand ”proof”, then ”proof” is a logical statement or logical model, often expressed as equation or a set of equations.
When anyone say “prove” or “disprove“, then that would means to a mathematician or a scientist, solving the equation, or do partial differentiation or do truth table (eg using the operators AND, OR, NAND, NOR, etc), etc.
To give some examples as to what proofs mean in science, particularly in physics:
Ohm’s Law is V = I R that equation is proof, not evidence
Newton‘s law for force is F = m a, that would be a proof for force.
Here is Einstein’s proof for mass-energy equivalence (used in Special Relativity): E = m c^2
So if you had any proof, then should be able to show mathematical equations that the universe is eternal. But since this thread started, you have not shown a single equation.
You keep saying you have proof, then do you either the equation or formula?
If you don’t, then stop claiming you have them.
Proofs (eg equations) are theoretical.
here, you have demonstrated once again, you don’t even know what proof is.
if you want to prove or disprove something, then that would be “theoretical”.
you are utterly clueless, using wrong words, only demonstrated how little understand science.