Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options not deleted user 139306

A simple, stack-based, Forth-like programming language using "opcodes" to express spending conditions.

2 votes

How to choose a nothing-up-my-sleeve (NUMS) point on secp256k1 for use in Taproot?

In BIP-341, an example NUMS point is given, along with a cautionary note about leaking information: One example of such a point is H = lift_x(0x0250929b74c1a04954b78b4b6035e97a5e078a5a0f28ec96d547bfe …
James O'Beirne's user avatar
2 votes

Is there a particular order in which transaction inputs are checked for script validity?

Inputs are not necessarily evaluated for script validity in any particular order. … Those script check objects will be pulled off the vector by asynchronous workers and may be evaluated in any order. …
James O'Beirne's user avatar
1 vote
1 answer
210 views

How to choose a nothing-up-my-sleeve (NUMS) point on secp256k1 for use in Taproot?

Per BIP-341, if you want to create a Taproot output that is only spendable via the script-path spend (and not a key-path spend), you must "pick as internal key a point with unknown discrete logarithm." …
James O'Beirne's user avatar
1 vote
1 answer
82 views

Is there a particular order in which transaction inputs are checked for script validity?

When a transaction is being checked for validity, is there a particular order that the inputs are evaluated for script correctness? …
James O'Beirne's user avatar