Struct ChainVerifyResult 

pub struct ChainVerifyResult {
    pub total_entries: usize,
    pub valid: bool,
    pub first_invalid_at: Option<usize>,
    pub source_present: bool,
    pub unknown_event_types: usize,
}

Fields

total_entries: usize

valid: bool

first_invalid_at: Option<usize>

source_present: bool

Whether the audit trail file existed and was readable. A missing trail is a valid empty history for a fresh install, but callers that already hold audited state must treat false as evidence loss.

unknown_event_types: usize

Entries whose event_type this build does not know, but whose hash links verify. Forward compatibility, NOT corruption: a reader older than the writer must report those separately instead of raising a false tamper alarm (OCP Part 4 additive-event rule). Actual hash or structure damage still sets valid = false.