Proof of Play (PoP)

A log from a digital out-of-home screen confirming that a specific ad actually played, when and where.

By Brandon MinaCEO, BrandPilot AIUpdated November 2026

Short answer

Proof of play (PoP) is a log generated by a digital out-of-home screen or its media player confirming that a specific ad actually played, along with when and where. Advertisers use proof-of-play records to verify delivery against what was purchased, and they underpin billing and reporting in programmatic DOOH.