Domain separator for the Inbox rolling sha256 chain over L1 to L2 message leaves.
Prefixed to every link's sha256 preimage so a chain link cannot be reinterpreted as an untagged two-field sha256
hash, in particular the out_hash merkle node hash, which absorbs the same 64-byte two-field preimage shape.
Domain separator for the Inbox rolling sha256 chain over L1 to L2 message leaves.
Prefixed to every link's sha256 preimage so a chain link cannot be reinterpreted as an untagged two-field sha256 hash, in particular the
out_hashmerkle node hash, which absorbs the same 64-byte two-field preimage shape.