Insurance teams are starting to ask for machine custody logs the way earlier industries asked for maintenance books and chain-of-handling forms.
The reason is simple. Too many off-world disputes now depend on proving not just that an event happened, but which machine branch, review stack, or automated lane touched it first. When claims turn on timing and delegation, ordinary narrative summaries stop being enough.
Custody logs will not remove argument, but they make argument auditable. That is already enough to move them from internal operations tooling into the evidence layer of underwriting and claims.