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Author Topic: Valid transaction  (Read 764 times)
jackjack
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May 27, 2013, 12:23:09 PM
 #1

The wiki says that "a transaction is valid if nothing in the combined script triggers failure and the top stack item is true (non-zero)"
But "x==OP_TRUE" != "x!=OP_0"
So which one is correct?

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crary
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May 27, 2013, 03:23:38 PM
 #2

Actually, neither one is correct (even if you blur the distinction between a constant and the opcode that pushes it).  There are lots of representations of true, and -- since the script manipulates byte strings, not integers -- there are lots of representations of false as well.

Also, the way I read the code, OP_0 doesn't actually work, but I could be confused.  I'd like it if someone better familiar with the code than I could weigh in on that.
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