The event's sponsorship deck says "5,000 senior decision-makers." The deck also said that last year, and the booth team came back reporting three days of students collecting lanyard swag. Event sponsorships are five-figure bets made on the organizer's self-description — the least reliable source available — because verifying the real audience seemed impossible from the outside.

It isn't. Last year's event is on YouTube: the sessions, the panels, the hallway-track energy. The content level tells you who the event is actually for; the Q&A tells you who actually showed up and what they cared about. An hour of diligence against the recordings beats every stat in the deck.

deep_search pulls last year's edition: the event's uploaded sessions, keynotes and panels. The level classification alone is diagnostic — an event pitched as "senior practitioners" whose content classifies beginner is telling you who really attends.

run_youtube_tool's summarizer compresses the sessions into the diligence read: topics, depth, sponsor integration quality (how did last year's sponsors show up — booth mentions, integrated talks, or logo wallpaper?). The Q&A segments are the goldmine — real attendees asking real questions is the audience sample no deck can fake. Your sponsorship decision runs on the event's own recorded evidence, and the negotiation runs better when you demonstrably did the homework.