INDEPENDENT VERIFICATION

Transformation Verifier

Provide an original coordinate pair and a claimed transformed result. This tool independently recomputes the expected shift, calculates the deviation, and flags the result as Acceptable, Suspicious, or Severe Mismatch.

① Original Coordinate (Input)

② Claimed Transformed Result

③ Transformation Context

How the Verifier Works

The Verifier computes the Haversine great-circle distance between your original and claimed-transformed coordinate pairs. It then compares this against the expected shift range for the selected datum transformation pair, and classifies the result:

  • Acceptable — Deviation is within the expected tolerance of the transformation method
  • Suspicious — Deviation is outside expected range but below catastrophic mismatch tolerance. Manual review recommended.
  • Severe Mismatch — Deviation strongly suggests a datum confusion error (e.g., Tokyo treated as JGD2011, GDA94 treated as GDA2020). Transformation is invalid — do not use in production.
→ Explore the Global Compliance Hub