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ApplicationsJanuary 10, 2026

Who uses presence receipts and why

Volunteer organizations, training providers, construction sites, government agencies—real examples of how verifiable presence proof solves problems.

A volunteer giving a cup to a person - Community service and volunteer attendance tracking. Photo by RDNE Stock project from Pexels

Presence receipts fill a gap that exists across many industries: the need to prove, not just record, that someone was somewhere. Here are the most common applications we see.

Volunteer organizations

Nonprofits issue volunteer hour documentation constantly—for students needing community service credits, professionals tracking pro-bono work, and individuals fulfilling court-mandated service requirements.

Traditionally, this means signed letters on letterhead, spreadsheets emailed back and forth, or phone calls to verify hours. These methods are slow, error-prone, and easily fabricated.

With presence receipts, a food bank can issue verifiable hour logs at the end of each shift. Volunteers collect receipts over time, then share a link with their university admissions office or probation officer. The verifier sees instantly: 40 hours, verified, tamper-evident.

Habitat for Humanity issues ~200 volunteer receipts per week across their Portland chapters. Before Attestly, staff spent 8+ hours monthly responding to verification requests. Now verifiers check receipts themselves.

Training and certification

Safety training providers, continuing education programs, and corporate L&D teams all need to document attendance—and often need that documentation to hold up in audits.

OSHA inspectors don't just want to know that training happened; they want proof that specific workers attended specific sessions. Same for professional licensing boards verifying continuing education credits.

Presence receipts provide audit-ready documentation automatically. When an inspector asks for training records, workers can produce verifiable receipts on the spot. No scrambling through filing cabinets, no "I'll have to check with HR and get back to you."

Construction and field work

Construction sites have complex presence requirements. General contractors need to know which subcontractor crews were on site on which days. Insurance claims require documentation of who was present during incidents. Labor disputes often hinge on proving attendance.

Current solutions—sign-in sheets, badge scans, supervisor attestations—create records that are hard to verify after the fact. When a dispute arises six months later, it becomes a matter of competing claims about who was where.

Presence receipts create contemporaneous, signed records. A worker clocks in by scanning a site QR code; at the end of the day, they have a receipt with a precise timestamp that can be independently verified. If there's ever a question, the proof exists.

The common thread

Across all these use cases, the pattern is the same: someone needs to prove presence to a third party who wasn't there and doesn't have a direct relationship with the issuing organization.

If your organization issues any kind of attendance documentation that recipients later need to prove to others, presence receipts are probably relevant.

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