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Update 8_3_Running_a_Bitcoin_Script_with_P2SH.md

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Shannon Appelcline 2017-06-01 11:54:28 -07:00 committed by GitHub
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8_3_Running_a_Bitcoin_Script_with_P2SH.md
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@ -46,12 +46,14 @@ Script: OP_HASH160 <hashed99Equal> OP_EQUAL
Stack: [ 1 98 <serialized99Equal> ] Stack: [ 1 98 <serialized99Equal> ]
Script: <hashed99Equal> OP_EQUAL Script: <hashed99Equal> OP_EQUAL
Running: <serialized99Equal> OP_HASH160
Stack: [ 1 98 <hashed99Equal> ] Stack: [ 1 98 <hashed99Equal> ]
Script: OP_EQUAL Script: OP_EQUAL
Stack: [ 1 98 <hashed99Equal> <hashed99Equal> ] Stack: [ 1 98 <hashed99Equal> <hashed99Equal> ]
Script: Script:
Running: <hashed99Equal> <hashed99Equal> OP_EQUAL
Stack: [ 1 98 True ] Stack: [ 1 98 True ]
``` ```
The Script ends with a `True` on top of the stack, and so it succeeds ... even though there's other cruft below it. The Script ends with a `True` on top of the stack, and so it succeeds ... even though there's other cruft below it.
@ -73,12 +75,14 @@ Script: OP_ADD 99 OP_EQUAL
Stack: [ 1 98 ] Stack: [ 1 98 ]
Script: 99 OP_EQUAL Script: 99 OP_EQUAL
Running: 1 98 OP_ADD
Stack: [ 99 ] Stack: [ 99 ]
Script: OP_EQUAL Script: OP_EQUAL
Stack: [ 99 99 ] Stack: [ 99 99 ]
Script: Script:
Running: 99 99 OP_EQUAL
Stack: [ True ] Stack: [ True ]
``` ```
With that second validation _also_ true, the UTXO can now be spent! With that second validation _also_ true, the UTXO can now be spent!