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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 …
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. …
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." …
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? …