Verification engine

How WorkTag computes clearance

WorkTag uses a rule-based, fully auditable verification engine. Every credential passes through a structured verification loop. Every clearance decision is deterministic — same inputs produce the same result, with a full breakdown of why.

Verification tiers

Not all credentials are equal

WorkTag distinguishes credential strength by verification depth. Stronger verification carries more weight in the clearance assessment.

UploadedDocument uploaded but not yet reviewed.
None
ExtractedAI extracted fields from the document. Awaiting review.
Low
Admin-approvedAdmin reviewed and approved the credential.
Standard
Registry-verifiedNot yet available — no registry integration is live. Reserved for when a registry check exists.
Highest
FlaggedActive fraud signal or anomaly detected.
Blocked

Clearance levels

Status reflects credential strength

Not Eligible

—

Required credentials missing or expired

Conditional

—

Some credentials expiring or pending review

Eligible

—

All required credentials valid and current

Verified

—

Reserved for registry-confirmed credentials (not yet available)

Flagged

—

Active fraud signal

Fraud resistance

Built to resist manipulation

The system detects fraud patterns structurally. No ML — deterministic rules with defined thresholds.

Forged documents

Every credential is reviewed by admin before approval. AI extraction flags inconsistencies automatically.

Expired credentials

Expiry dates are tracked continuously. Clearance status updates automatically when a credential lapses.

Duplicate submissions

The system detects duplicate credentials across workers and flags them for review.

Submission velocity abuse

Unusually fast credential uploads trigger an anomaly signal for admin review.

Altered documents

AI extraction cross-checks fields against the original file. Mismatches are flagged.

Registry discrepancies

No registry check is live today. When one exists, credential details will be compared against the authoritative source.

How this supports site clearance

The verification engine feeds directly into site clearance decisions. When a worker shares their clearance link, the employer sees a status — Eligible, Conditional, or Not Eligible — backed by the verification data described above.

✓Credential verification strength determines clearance confidence

✓Fraud signals automatically block clearance until resolved

✓Every clearance decision links back to auditable verification records

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