A family tree is a set of claims
Names, dates and relationships look simple on a chart, but each is a claim supported by one or more records. If software stores only one value, a correction can erase the very disagreement that a researcher needs to investigate.
Two layers create a durable research trail
GeneaProof retains source-derived records and lets researchers build conclusions above them. That model supports competing interpretations, citations attached to the exact claim and a visible explanation of why the current conclusion was chosen.
Correction becomes safer
New evidence can change a preferred conclusion without rewriting the archived source record. The result is useful to families and rigorous enough for professional review because another researcher can reconstruct how the conclusion evolved.