Hi i just found some posted here in other thread and section about double spend but honestly i do not know what it is.
But i have idea that double spend means that you double your send bitcoin but i do not understand someone that why they need to wait for confirmation before accepting and the other said that they want to wait because of double spending..
So if the receiver receive double spending i think it is lucky that he receive double? am i right?
Sorry for noob question.. even i am sr.member i never experience double spending in my life..
No, the term double spend is used in a rather confusing way. A true double spend where coins are used twice is not possible in bitcoin. At least not after one transaction has a confirmation. While two transactions can spend the same bitcoin, only one of them can be confirmed. Whichever is confirmed first is the "correct" one, the other is invalid. Now double spend is commonly used to refer to a second transaction that is in conflict (neither is confirmed) of another one.