Korea Commerce Agency IndexAgency Data Lab

How does KCAI verify its data?

Every fact goes through five stages: collect → snapshot hash → evidence grade → review → publish. Review-based verification (V0–V3) has a schema ready but no operating data yet, so it ships in a later phase. Corrections and disputes are submitted through the submit page and handled by editorial review.

DATA AS OF 2026-08-03 · METHODOLOGY v0.2 · N=33

Collect-to-publish pipeline

  1. Collect — AI-assisted collection agents gather facts from official sources.
  2. Snapshot hash — the original source content is stored and hashed at the time of collection, so it can be re-verified later.
  3. Evidence grade — a grade from E1 (official) to E6 (editorial judgment) is assigned based on source type.
  4. Review — editorial review and spot-checks re-confirm the grade and the facts.
  5. Publish — only facts and pages meeting index-promotion criteria go live.

Full definitions of the six evidence grades (E1–E6), and how each grade affects ranking and display, are on the methodology page.

Review verification tiers (V0–V3, upcoming)

Review collection has a schema in place, but no user-facing UI or live data yet.
TierMeaningRanking input
V0Email-verified userNo
V1Company-verified reviewerNo
V2Project-verified reviewYes
V3Outcome-verified projectYes (highest priority)

Only V2 and above (project- or outcome-verified reviews) will be used as ranking inputs. V0 and V1 will display as directory reference information only, with no effect on rankings.

Correction and dispute process

  1. Submit the type, target agency, and details through the submit a correction page.
  2. Editorial review assigns an evidence grade to the submission.
  3. If it meets source and grade thresholds, it is published or the existing value is corrected. If not, it is declined and the reason is kept in our internal record.
  4. If an email was provided, we reply with the outcome.