Proof of Play is the documented evidence that specific content played on a specific display at a specific time. In digital signage, proof of play is the audit-grade record required for DOOH advertising billing, regulated-content compliance, internal verification, and partner accountability. Every play is logged with timestamp, content ID, display ID, and a verification hash.

In Livesignage, proof of play is captured natively across the network — every playback, every interaction, every skipped slide — and made available through structured reports and APIs. On the Enterprise license tier, proof of play data is also exposed to programmatic DOOH systems through the platform's API, enabling integration with DSP/SSP marketplaces and standardized advertiser reporting.