Stack size

[alkurbatov97]

What is the stack size in Bitcoin Script?

[bob123]

That's a weird question with no clear answer.
Do you get an error when signing a transaction (e.g. 'operation not valid with the current stack size'), or why are you asking this question ?

If you somehow encounter an error and want to get a detailed helpful reply, you should include every necessary information into your post.


In case of you getting 'operation not valid with the current stack size' when signing a transaction with core, you are somehow either missing private keys to sign the TX or the script verification failed for any other reason.
Are you trying to sign a multisig tx ?

[alkurbatov97]

Hi
Thank you for comment.
Just I read in one source that the stack size when using Bitcoin Script is limited to 16 values.
Is it so?

[amaclin1]

Hi
Thank you for comment.
Just I read in one source that the stack size when using Bitcoin Script is limited to 16 values.
Is it so?

No, this is definetely wrong

[HeRetiK]

The maximum stack size for a Bitcoin script to be still considered valid is 1000:

Code:

// Maximum number of values on script interpreter stack
static const int MAX_STACK_SIZE = 1000;

Depending on your script you are more likely to run into the maximum script size in bytes though:

Code:

// Maximum script length in bytes
static const int MAX_SCRIPT_SIZE = 10000;

For reference:

https://github.com/bitcoin/bitcoin/blob/78dae8caccd82cfbfd76557f1fb7d7557c7b5edb/src/script/script.h

https://github.com/bitcoin/bitcoin/blob/78dae8caccd82cfbfd76557f1fb7d7557c7b5edb/src/script/interpreter.cpp