L2 records the message
ArbSys emits L2ToL1Tx.
CANONICAL WITHDRAWAL
THREE STEPS
The first two stages advance with the protocol. Stage three intentionally stops: the owner signs the Outbox call elsewhere on Ethereum L1.
OriginL2 / ArbSys
Window6D 8H / ASSERTION
DestinationL1 / OUTBOX
The assertion matures
The protocol dispute window is 6 days 8 hours.
The Outbox waits
The documented 7-day experience includes assertion posting and the owner's manual call.
6 days 8 hours
The dispute window.
7 days
Assertion posting plus the manual claim step explain the difference.