Function chainHead

src/cli/maintain-audit.ts:85–87

(entries: AuditEntry[])

/** The chain head — what a signature commits to. PURE. */
export function chainHead(entries: AuditEntry[]): string {
  return entries.length ? entries[entries.length - 1]!.hash : AUDIT_GENESIS;
}

/**
 * Recompute every hash + link and report the first broken index. PURE. `valid` means the chain is