The verifiable proof is that there is absolutely no proof to the contrary. For example, you have no proof of how that wheel got there other than from flight 77. And it's not just the wheel. Evidence of that wheel coming from flight 77 is corroborated by other evidence. Other fragments of an American Airlines Boeing 757-200. Fuselage fragments were recovered. Wing sections were located and identified. Engine components were discovered, including turbine blades. Landing gear parts were found scattered around the area. Ailerons and rudders, were retrieved. Bodies of some passengers were recovered. Some, still in their seats. Some of their personal belongings was also recovered. Flight data recovered from the black boxes showed the altitude, speed, and heading pf flight 77, showing it was flown right into the Pentagon just as many eyewitnesses claimed to have seen. Then there's the damage to the outside of the Pentagon before that section collapsed, clearly damage from a plane with a wingspan wide enough to rip out two rows of lampposts. Something you flat out refuse to even discuss because even you know there is no other explanation besides flight 77 taken them out as it approached the Pentagon. A Predator can't take out 2 rows of lampposts and create ~140 foot wide area of damage. Neither can a missile. "Nuh uh" is not a rebuttal.
