When did blockchain become the official path to transparency for digital advertising? Don’t get me wrong: Distributed ledgers are a promising new technology with the potential to revolutionize many aspects of our digital lives. Digital currencies built on blockchain have already proved to be a significant, if somewhat erratic, economic force. Cryptocurrency powered by blockchain… https://www.adweek.com/programmatic/as-blockchain-falls-short-of-expectations-advertisers-look-to-ad-tech-for-solutions-instead/