I had a cutting that's now a sapling from the Fortingal Yew, the oldest living tree in Europe, at around 6-7,000 yrs old. And in my pocket I have a piece of Yew that's 3,800yrs old, so I can always 'touch wood'. It's a very magical piece of wood
Being into botany that is an amazing opportunity to have a cutting of that tree. I am sure it may be pretty common to obtain that specific strain due to extensive propagation? I'd like to try a few seeds of the bristlecone but it is pretty picky about where it grows. It would be fun to try.
Some of them are, yes. I am not sure the age of this specific one. Apparently one of them is just under 4800 years old. They do not say specifically which one it is to prevent vandalism. But It is within this grove.