Help with understanding Bitcoin script.

udyogaadhar01

brand new

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Merit: 0

As of late, for boosting little scope organizations in the nation, the Government of India has started the Udyog Aadhaar Registration process. Prior, in the event that you wished to begin msme registration online a business and get SSI enlistment or MSME enrollment, you expected to experience a great deal of administrative work.

evanlinjin

newbie

Activity: 2

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Awesome! Thank you for your help with clarifying

pooya87

legendary

Activity: 3472

Merit: 10611

yes the second one works and essentially does the same thing as the first one but in a more efficient way. this example is probably like this to show how OP_IFs work otherwise there is a better way of defining this particular script which is using multi-sig.

Code:

1   2 CHECMULTIKSIG

usually the conditional scripts like this are more complex and each expression could contain multiple pubkeys with a multi-sig OP or sometimes locktimes or other complications which has to be defined like the first script.
examples:

Code:

IF
    CHECMULTIKSIG
ELSE
   CHECKSIG
ENDIF

Code:

IF
   CheckLocktimeVerify DROP  CHECKSIG
ELSE
  2   2 CHECKMULTISIG
ENDIF

evanlinjin

newbie

Activity: 2

Merit: 0

I'm going through the book Mastering Bitcoin, and I have a query regarding the section on "Using Flow Control in Scripts".

So, there is an example of a redeem script as follows:

Code:

IF
   CHECKSIG
ELSE
   CHECKSIG
ENDIF

I'm wondering why it is structured in this manner, instead of the following:

Code:

IF
  
ELSE
  
ENDIF
CHECKSIG

Would the latter work? And if so, would it be the better version as it saves space by one opcode?

Thank you all in advance.

Topic: Help with understanding Bitcoin script. (Read 169 times)