Separation
Report structure, integrity, signature, identity, time and current status independently.
Layered verification guide
Neutral requirements for layered document verification
A vendor-neutral procurement and evaluation checklist.
Local operation
Perform exact-state verification locally where feasible.
Evidence
Expose algorithms, key identifiers, registry evidence and timestamps used.
Failure safety
Malformed, altered or unsupported input must fail closed and explain why.
Portability
Permit human and machine-readable reports and offline document handling.