Less than two months after going public, ad verification specialist Integral Ad Science (IAS) has acquired connected TV ad vendor Publica for $220 million. IAS is hoping the acquisition will expand its relationships with CTV publishers, with Publica holding the likes of ViacomCBS, Fox and Philo as clients. IAS historically worked in display advertising, ensuring that web ads were verified as viewable and brand safe, but video is clearly now high on the agenda. IAS feels that CTV viewership and programmatic advertising are shooting up and is hoping that Publica will allow it to latch onto this growth and capitalize on the market. IAS has acquired Publica for both its CTV technology platform and its proprietary data assets, with the…