Talk:OP CHECKSIG: Difference between revisions
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{{WikiProject|Protocol|importance=TOP|quality=B}} | |||
=Redundant step?= | =Redundant step?= | ||
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However, doesn't step 6 seem redundant? [[User:Vegard|Vegard]] | However, doesn't step 6 seem redundant? [[User:Vegard|Vegard]] | ||
Answer: | |||
Answer: ([[User:sirk390|sirk390]]) | |||
The comment for step 6. in the bitcoin sources help to understand this (script.cpp:882) | |||
// In case concatenating two scripts ends up with two codeseparators, | // In case concatenating two scripts ends up with two codeseparators, | ||
// or an extra one at the end, this prevents all those possible incompatibilities. | // or an extra one at the end, this prevents all those possible incompatibilities. | ||
In step 2, only OP_CODESEPARATOR before OP_CHECKSIG are removed. In step OP_CODESEPARATOR after OP_CHECKSIG are also removed. | |||
==Update with OP_RETURN== | |||
I'm searching a schema like the one from jenjix but updated with the OP_RETURN code, anyone can updare the page to add this new feature information in the raw transaction explanation? I also see that for now doesn't exist either a page on the OP_RETURN on this wiki... [[User:Pietrod21|Pietrod]] | |||
= More info = | |||
Maybe add short description from here [[Contracts#Theory]] for all SIGHASH_*? [[User:Mad|Mad]] | |||
= Code samples and raw dumps = | |||
I think there is some error in the section "Code samples and raw dumps" - The input script is: | |||
"04 11 db 93 e1 dc db 8a | |||
01 6b 49 84 0f 8c 53 bc | |||
1e b6 8a 38 2e 97 b1 48 | |||
2e ca d7 b1 48 a6 90 9a | |||
5c b2 e0 ea dd fb 84 cc | |||
f9 74 44 64 f8 2e 16 0b | |||
fa 9b 8b 64 f9 d4 c0 3f | |||
99 9b 86 43 f6 56 b4 12 | |||
a3 | |||
ac" | |||
and should probably be "304402204e45e16932b8af514961a1d3a1a25fdf3f4f7732e9d624c6c61548ab5fb8cd410220181522ec8eca07de4860a4acdd12909d831cc56cbbac4622082221a8768d1d0901", at least according to the Block Explorer: | |||
http://blockexplorer.com/rawtx/f4184fc596403b9d638783cf57adfe4c75c605f6356fbc91338530e9831e9e16 | |||
--[[User:ThePiachu|ThePiachu]] 22:46, 21 March 2012 (GMT) | |||
:Indeed, I had noticed the same problem. I have fixed the example. | |||
:[[User:OneEyed|OneEyed]] ([[User talk:OneEyed|talk]]) 18:16, 4 August 2012 (GMT) | |||
Latest revision as of 15:46, 19 July 2015
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Redundant step?
Under "How it works", we have steps 2 and 6:
- 2. A new subscript is created from the instruction from the most recent OP_CODESEPARATOR to the end of the script. If there is no OP_CODESEPARATOR the entire script becomes the subscript (hereby referred to as subScript)
- 6. All OP_CODESEPARATORS are removed from subScript
However, doesn't step 6 seem redundant? Vegard
Answer: (sirk390)
The comment for step 6. in the bitcoin sources help to understand this (script.cpp:882)
// In case concatenating two scripts ends up with two codeseparators,
// or an extra one at the end, this prevents all those possible incompatibilities.
In step 2, only OP_CODESEPARATOR before OP_CHECKSIG are removed. In step OP_CODESEPARATOR after OP_CHECKSIG are also removed.
Update with OP_RETURN
I'm searching a schema like the one from jenjix but updated with the OP_RETURN code, anyone can updare the page to add this new feature information in the raw transaction explanation? I also see that for now doesn't exist either a page on the OP_RETURN on this wiki... Pietrod
More info
Maybe add short description from here Contracts#Theory for all SIGHASH_*? Mad
Code samples and raw dumps
I think there is some error in the section "Code samples and raw dumps" - The input script is:
"04 11 db 93 e1 dc db 8a 01 6b 49 84 0f 8c 53 bc 1e b6 8a 38 2e 97 b1 48 2e ca d7 b1 48 a6 90 9a 5c b2 e0 ea dd fb 84 cc f9 74 44 64 f8 2e 16 0b fa 9b 8b 64 f9 d4 c0 3f 99 9b 86 43 f6 56 b4 12 a3 ac"
and should probably be "304402204e45e16932b8af514961a1d3a1a25fdf3f4f7732e9d624c6c61548ab5fb8cd410220181522ec8eca07de4860a4acdd12909d831cc56cbbac4622082221a8768d1d0901", at least according to the Block Explorer: http://blockexplorer.com/rawtx/f4184fc596403b9d638783cf57adfe4c75c605f6356fbc91338530e9831e9e16 --ThePiachu 22:46, 21 March 2012 (GMT)