ENGINEERING

    How we resolve identities without leaking PII

    Cross-channel matching without becoming a privacy nightmare — the architecture that makes it possible.

    Date
    April 14, 2026
    Read
    9 min
    Author
    Taploop Team

    Identity resolution is powerful and dangerous in equal measure. Done wrong, you've built a surveillance database. Done right, it just feels like the brand remembers you.

    The trick is to hash-and-match instead of store-and-link. Raw identifiers never leave their channel of origin; only their fingerprints do.

    CHECKLIST5 ITEMS

    Privacy-first matching principles

    • 01Hash identifiers at source — never store raw email/phone in the match graph
    • 02Per-region storage (EU data stays in EU)
    • 03User-initiated unlink endpoint that actually works
    • 04Audit log of every merge event, reversible by support
    • 05Match confidence scores so low-confidence merges don't auto-trigger campaigns
    IMPLEMENTATION PLAYBOOK

    Turn this into a working Telegram CRM workflow.

    Use the article as the strategy layer, then connect it to Taploop for audience selection, campaign execution, attribution, and follow-up. The SEO goal for this page is to answer the searcher's practical question and route them to the product surface that can run the workflow.

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