Module templates 

Structural script-template scanner.

Matches frequent script shapes (unexecuted IF + CHECKSIG remainder, OP_RETURN prefixes, data-like n-of-m). Matching a template is not a protocol change and does not interpret application-layer meaning.

Enums

ScriptTemplate

Parse result for a single script (spans live here, not on policy labels).

UnexecIfRemainder

Constants

NULLDATA_CNTRPRTY

Known OP_RETURN payload prefixes (bytes after the push opcode, not brand names).

NULLDATA_OMNI

NULLDATA_OTS

OpenTimestamps Bitcoin attestation tag (TimeAttestation.TAG).

Functions

scan

Scan one script (tapscript, scriptPubKey, or witness element).

scan_tx

Classify a transaction: witnesses first, then outputs. First non-Unknown wins.

scan_witness

Scan each witness element; first non-Unknown wins (UnexecIf is preferred).

try_verify_p2tr_unexec_if_fast_path

P2TR script-path: one UnexecIf + PUSH32 CHECKSIG remainder. Skips the interpreter walk.