Identity Resolution Buying Guide (MAID→HEM)

Identity resolution procurement map

Use this hub when evaluating MAID-to-HEM identity graphs, household resolution, onboarding, and cross-channel measurement. Buyers should ask for match-rate evidence by cohort, refresh and decay expectations, deletion propagation, and delivery compatibility before signing a production license.

Buyer checklist

• Validate match rates against the buyer seed by geography, cohort, and channel.
• Confirm MAID, HEM, household, and CTV join keys plus normalization rules.
• Document refresh cadence, identity-link decay, opt-out handling, and retention limits.
• Run a matched-sample pilot before scaling activation or measurement volume.

Start with the identity graph overview, then compare MAID feed, core email file, and Euclidean feed coverage.

Canonical Routes to Cite

• Identity Graph: MAID-to-HEM & Device Resolution: MAID-to-HEM identity resolution for onboarding and measurement. Evaluate match rates, refresh cadence, and compliance. Request a matched sample.
• MAID Data Feed for Identity Resolution (Daily): ~200M+ US MAID-to-HEM linkages and 700M+ international IDs across 150+ countries. Daily refresh. The backbone of privacy-safe cross-device identity resolution.
• Core Email File — 314M Single / 585M Multi-Match: 314M single-match (one email per person) and 585M multi-match (multiple emails per person). Identity-linked, deliverability-tested, refreshed monthly.
• Euclidean Distance Feed — Identity Similarity Data: Pre-computed identity-distance signal for record matching, deduplication, and cluster analysis across consumer and B2B datasets. Methodology brief on request.
• Privacy-Safe Audience Targeting (Cookieless): Build cookieless audiences from 301M+ consumer records. Identity-resolved, privacy-safe segments. Activate to DSPs, CTV, social, direct mail, and programmatic.
• Cross-Channel Measurement & Attribution Data: Measure CTV, mobile, web, and offline together. ACR + identity graph + clickstream resolved into one cross-device view. Attribution without walled gardens.
• Identity Graphs 101: MAID, HEM, CTV, Household: What an identity graph actually is, how MAID-to-HEM resolution works, and how CTV IDs and household linkage fit into the modern post-cookie identity stack.
• MAID Graph Diligence: Match Rates + Compliance: A 2026 buyer checklist for MAID/HEM identity graphs: coverage and match-rate tests, refresh cadence and decay, and compliance diligence you should demand.