`tx-expired`


Category	Consensus rule
Surfaces as	HTTP 422 (`consensus rule violated`) when submitted to a node
problem+json `code`	`tx-expired`

Where it is defined

§6 Contextual transaction validation (check_tx_inputs): lock_time ≤ h. If valid_until ≠ 0, then h ≤ valid_until (tx-expired).

See the error model for the RFC 9457 response shape.