Is there any known thing or physical object that absolutely cannot be destroyed? What hasn't worked
I thought of elementary particles, but with antiparticles they can be converted into photons (thus the particles and antiparticles vanish), and photons can be converted into heat (thus the photons no longer exist). I have also thought of information, but it is not confirmed that information is actually indestructible (if it is thrown into a black hole) and I have observed in my own experience from accidentally wiping my computer that information can be permanently lost (not to mention that since phones, hard drives, computers, monitors, CDs, DVDs, servers, and paper can be shredded, cut, burned, etc, the data on them can be lost permanently). I have thought of Black Holes, but Hawking radiation effects can make the Black Hole evaporate eventually. Space and time can be ripped/warped by a strong enough gravitational pull, and even things like depleted uranium, tungsten carbide, vanadium steel, and other relatively strong materials all melt if you throw them in the sun (which is why I think probes have never been to the surface or core of the sun, as no currently available material will maintain its integrity at the surface of the sun, much less the core. I have thought of atoms, but atoms can be split or fused. Also, protons and neutrons have been split into quarks by the LHC.
What I mean by Indestructible
When I say indestructible, I mean that it cannot be split, cut, burned, disintegrated, vanished with antimatter, warped, broken, erased, deleted, blown up, or otherwise made to not exist. Since indestructible is an absolute term, if there is any possibility of the thing in question ceasing to exist, it does not count as "indestructible."
The essential question
According to physics, is there any possible thing, object, particle, etc. that is or could be indestructible?
Note: I was unsure what tags to use, so any edits to the tags would be welcome.
 A: The fundamental laws of physics are time reversible. So if something cannot be destroyed then it follows that it cannot be created. And if it cannot be created then either it doesn't exist or it has always existed.
As far as I know, we don't know of anything that has always existed. So then we don't know of anything that is indestructible.
A: Energy it can only dissociate transform but never completely gets wiped out. SO ENERGY is the answer. Energy might change its magnitude,colour,form but it doesn't just disappear.
A: Alternative reasoning, same answer as others...
All physical entities we know of exist in time and space.  But we have no way to know if time and space have always existed  or will always exist. So we can't know if anything within them can or will  either.
A: The Universe itself.
(At least according to the current body of physics)
A: The second law of thermodynamics states that, within a closed system, entropy must always either remain constant or increase over time. Therefore entropy as a bulk quantity can never be destroyed.
A: Nothing can't be destroyed.  Once everything else is destroyed, Nothing will still remain.
A: The word "destroyed" doesn't bear a lot of mean in a generic scientific context, in other words; you left the word "destroyed" to be open for interpretation.
For example:
When you crush a brand new car, most people would interpret that as destroying the car. However, at a more fundamental level, the matter is all still intact; it just changed shape.
You can use a collider to smash matter into tiny particles so it isn't even matter anymore, however; this example is much like the car example in the sense that the energy that constituted the matter still exists; it's state just changed.
From a particular perspective, nothing can be destroyed in our universe, as matter can only change its state. We live in a universe of  impermanence, a universe where entropy is the second law of thermodynamics.
Read about Maxwell's Demon, for a good example of how omnipresent entropy is. The universe could not be what it is without it. Everything is in an impermanent state, everything will change, everything has to change.
What does entropy have to do with your question?
Well, it has everything to do with your question.
It certainly answers it, though the answer may not be as defined as you might like.
The bottom line is that everything in our universe must change: if crushing a car means it was destroyed to you, then everything in our universe can be destroyed, and will eventually be destroyed. On the flip-side, if you feel that the car wasn't destroyed, and that the car simply changed shape, then to you, nothing in our universe is destroyed, but everything can change, and eventually will change.
