Independent deterministic decision authority
After an incident,
confidence is worthless.

The second question is always: "How do you know nothing else happened?" Legacy Lens produces deterministic, replayable evidence from source artifacts and issues authority decisions only under a declared governance context. Where provability terminates, authority terminates.

Offline only No telemetry Deterministic outputs Cryptographic verification GO / NO‑GO / REFUSE

What we issue

Authority records tied to an immutable evidence bundle: bundle root hash, findings hash, registry version, policy hash, declared context.

What we refuse

Claims that cannot be proven from artifacts. No runtime inference. No compliance certification. No confidence scores.

When confidence fails

Regulatory findings, post‑migration discrepancies, disputed diligence, audit committee escalation.


When confidence fails

Regulatory finding / consent order / monitorship
The decision must survive scrutiny, not optimism.
Post‑migration discrepancy / incident review
The second question is always: what else changed?
Merger integration dispute / diligence under scrutiny
Authority records replace assumptions in dispute.
Audit committee escalation / board refusal requirement
Refusal becomes the only defensible outcome.

How it works

Upload artifacts → declare context → run offline analysis → receive evidence bundle + decision outputs → verify later with hashes.

Start here

1) Download the offline kit
Run air‑gapped. No external calls. License required to start the server.
2) Read the research library
Provability boundaries: ALTER, dynamic CALL, CICS RESP/RESP2, IMS DL/I, assembler entry points.
3) Review public validation outcomes
Public corpora analyzed under declared context with verifiable bundle IDs and downloadable PDFs.

Authority and Evidence

GO / NO-GO / REFUSE definitions and issuance posture.
Authority issuance requirements and modes.
Deterministic bundle structure and replayability.
How to verify bundle integrity.
Versioned policy and registry governance.
Where deterministic guarantees terminate.