In this episode, Ari Paparo moderates a debate about the role of transaction IDs in the ad tech industry with Mike O’Sullivan, co-founder of Sincera and now part of The Trade Desk, and Chris Kane, founder of Jounce Media. The conversation covers the benefits and drawbacks of transaction IDs, publisher concerns about revenue and data privacy, and the influence of the Trade Desk. The episode also looks into the complexities of auction duplication and the need for transparency and standardization in digital advertising. In The Refresh, Ari and Eric Franchi discuss related topics, including CTV pause ads, AI payment models, and Amazon’s decision to block AI bots from scraping data. Takeaways Transaction IDs help harmonize ad requests and improve auction processes. Publishers express concerns about potential revenue loss and data privacy. The Trade Desk's influence is a point of concern for many publishers. Request duplication presents a significant challenge in ad tech. Engaging with buyers is crucial for publishers to understand market needs. Recent pre-bid changes have limited publishers' strategic options. Cleaner auctions can benefit both buyers and sellers. Transparency is vital for fair competition in the ad market. Publishers should seek clarity on how their inventory is presented. Standardization is needed for better performance in the ad tech ecosystem. Chapters 00:00 Introduction to Transaction IDs 02:15 Understanding Transaction IDs and Their Controversy 05:15 Publisher Concerns and Revenue Implications 09:01 The Impact of Request Duplication 14:35 Practical Uses of Transaction IDs for DSPs 18:46 The Future of Transaction IDs in Ad Tech 19:22 The Pre-Bid Controversy 20:53 Skepticism in the Market 25:11 Fear of Trade Desk's Power 30:12 Navigating Publisher Concerns 35:03 Advice for Publishers Moving Forward Learn more about your ad choices. Visit megaphone.fm/adchoices