Persistent IDs
One identity,
that follows them.
A persistent ID (“PID”) is an identification number that follows a customer through relocations, lapses, and name changes. Doing this successfully requires complex match logic and serious identity resolution.
PID-7841-EX
Jane R. Wilson
812 Oak Ave, Boise ID 83704
Jane R. Foster
812 Oak Ave, Boise ID 83704
Jane R. Foster
44 Pine St #3B, Seattle WA 98101
J. R. Foster
1290 Elm Ct, Portland OR 97214
Four addresses, two surnames, eleven years — one PID.
Match retention
97.4%
of identities preserved across change events
What a PID Survives
Built to outlast the events that break ordinary IDs.
Three transitions destroy most customer keys. A persistent ID is engineered for all three.
Relocations
Customers move — across town, across the country, or internationally. A persistent ID survives every change of address.
Lapses
Accounts go dormant and reactivate years later. PID keeps history intact across the gap so you don't start over.
Name changes
Marriages, divorces, professional name shifts. PID links the same person before and after, so analytics stay continuous.
The Science
DataPure brings 30+ years to identity resolution.
Resolving identity across time and change is one of the hardest problems in data. It blends deterministic matching, probabilistic inference, and a tolerance for ambiguity — calibrated against ground truth at scale.
Complex match logic
Multi-key matching with weighted attributes — names, addresses, phones, emails, DOBs — tuned to your data shape.
Identity resolution
Probabilistic reconciliation across sources, with confidence scores on every link, so you decide where the threshold sits.
30+ years of experience
Identity resolution is hard. We bring three decades of predictive analytics and big-data scale to every PID engagement.
One identity,
resolved across time
and change.
Where PID delivers
Continuity wherever the customer goes.
Anywhere you need a single, durable view of a person across time — despite the changes that life and data systems throw at it.
True LTV across moves
Track customer revenue, retention, and reactivation accurately when addresses and names change.
One member, one history
Reunite duplicate loyalty accounts so points, status, and history follow the customer.
Patient identity
Link patient records across providers, payers, and encounters — for a continuous care history.
Don’t lose the customer
When customers move, PID keeps them on your list at the new address — with full history.