Give every observation a source
An auction photo, title document, service invoice and seller statement are different kinds of evidence. Add their dates and describe where each came from. A source can be a public URL or a private document reference such as service invoice dated May 2; do not paste passwords, owner addresses or sensitive account links.
Use the event date, not today's download date
An archived listing may have been downloaded this week but describe an event years earlier. Enter the actual record date when available. If the date is uncertain, resolve it before treating the item as a reliable chronological point. The tool requires a specific date and leaves interpretation to you.
Keep mileage units explicit
Record miles and kilometers exactly as shown. The comparison converts kilometers to miles using 1 mile = 1.609344 kilometers. It flags a lower later reading for review, not as proof of rollback. Data entry, units, instrument replacement and record errors can all require investigation.
Worked example: different units
An earlier record of 100,000 kilometers is approximately 62,137 miles. A later 65,000-mile observation increases rather than decreases. Entering the earlier number as miles would create a misleading discrepancy. Keep the original units beside each normalized value.
Title history and physical condition are separate
Use an approved NMVTIS provider or relevant state records for title-related research. NICB offers a limited participating-insurer lookup. Neither a missing record nor a tidy timeline establishes that a vehicle has no undisclosed damage. Independent inspection answers a different question from history research.
Make the gaps useful
For each unresolved item, ask for a specific document or explanation: the earlier listing, an instrument-replacement invoice, the relevant title document or inspection findings. A long gap is simply a gap in your evidence, not evidence that nothing happened.
