Chicago – August 5, 2020 – Centro(https://www.centro.net), a global provider of advertising technology, announced transparency requirements that bridge the relationship between programmatic marketers and publishers. Now, advertising exchanges and advertising networks that want ad spend from Centro will need to implement sellers.json and SupplyChain Object. Centro will block ad intermediaries that do not comply. Centro is also setting a ‘two-hop’ limit, whereby its demand side platform (DSP) will accept an impression only when an exchange works with a publisher directly, or when an exchange works with an ad monetization intermediary that works with the publisher directly. Centro’s efforts to create more direct supply paths have led to recent integrations with supply partners Connatix, ENGINE Media Exchange (EMX), IronSource, Mediavine, and Unity.