Step 1 — Input Recognition

Identify the asset entering the system.

Minimum requirement:

• identifiable asset
• defined input structure

Step 2 — Validation Reference

Confirm that the asset has passed a validation process.

Minimum requirement:

• reference to validation source (MTVF or equivalent)
• traceable validation context

Step 3 — Integrity Check

Evaluate whether the asset shows signs of inconsistency or manipulation.

Minimum requirement:

• structural consistency
• no detected anomalies

Step 4 — Classification Assignment

Assign one of three states:

• Verified
• Unverified
• Contaminated

Step 5 — Decision Enforcement

Apply system behavior based on classification:

• Verified → allow
• Unverified → restrict
• Contaminated → block

Structural Rule

No asset may enter a system without TSA classification.

Closing Statement

Modern systems operate on assumed trust.
TSA replaces assumption with classification.


Trust is not declared.
Trust is validated and enforced.