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EON RESEARCH LIBRARY // Article
How to recognize duplicate certificate records
Two files can contain the same certificate. A changed filename or an additional archive location does not necessarily add an independent analytical observation. Deduplication therefore needs document evidence rather than filename comparison alone.
For research use only. Not for human or veterinary use.
A file hash can detect identical bytes. It cannot identify every scanned or re-exported copy of the same report. Where bytes differ, compare the issuing laboratory, report identifier, dates and results before deciding that both files represent distinct records.
Reading checklist
- Check exact-byte duplicates first
- Compare report identifiers for nonidentical files
- Preserve the reason for merging records
Reference: Certificate report identifiers.
Sources and further reading
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