Guide
Duplicate Detection Explained
How HireScan uses cryptographic fingerprints to prevent duplicate candidate records.
Why duplicates happen
Multiple sources (referrals, job boards, agencies) often lead to duplicate entries with slightly different spellings or formats.
Our approach
- We compute a salted hash over normalized identity features (e.g., name + email + phone + key CV entities).
- We compare this profile hash against your organization’s existing candidates.
- We flag likely matches for review instead of silently merging.
Best practices
- Prefer work emails where possible; personal emails change more often.
- Normalize names (e.g., removing extra whitespace or punctuation).
- Encourage consistent company and title naming for cleaner data.