Is there an object on given memory address?

[tcak via Digitalmars-d-learn]

Is there any "reliable" way to determine whether there is a 
certain type of object in memory at a given address?

I am going to send the memory address of an object to another 
program over pipes. Then after a while, other program will send 
that memory address, and main program will try to address the 
object. (Please do not concern about security). What I am worried 
about is whether the object is still there, or garbage collector 
has already removed it, or another object has come on same 
address.