Fiducia | 683 followers on LinkedIn. Log-level data management platform providing transparency, accountability and efficiency to the advertising marketplace | FIDUCIA is technology company developing a log-level data management platform delivering transparency, accountability and efficiency for the digital advertising marketplace over TAG TrustNet, the global initiative launched jointly with the Trustworthy Accountability Group (TAG). TAG TrustNet enables programmatic marketplace participants to share, harmonize, map and automate the reconciliation of impression log-file data to come up with Shared Truth: a single record of every ad impression across the digital advertising supply chain. The Fiducia platform was used for the ANA Programmatic Media Transparency Study and is now getting used for the Industry Programmatic Transparency Benchmark, a joint initiative of the ANA and TAG TrustNet.