Almost 200 journalists representing 53 countries have met in Madrid to participate in the fourth edition of the Global Fact-Checking Summit, the largest meeting in the world of information verifiers.

The goal of the meeting will be to exchange experiences and address new data verification challenges among media representatives such as The Washington Post, RAI, Le Monde, France Info and organizations such as Full Fact, Checked, Google News Lab or Facebook.

In particular, this edition of Global Fact will focus on issues such as the analysis and exchange of new formats, the contributions of cognitive science to data verification, automation processes or how to deal with organized disinformation campaigns.

The last meeting of this species was held in Buenos Aires from June 9 to 10, 2016, gathered 111 verifiers from 40 countries around the world. Participants included global leaders in the field such as Africa Check, Checked,, Full Fact, Libération Désintox, PolitiFact and The Washington Post Fact Checker.

The conference resulted in new initiatives such as the IFCN fellowships and the Code of Principles of Data Verifiers, later adopted by Facebook as a minimum condition for its third-party verification partners.

In this fourth edition, The Goal of Ana Pastor (LaSexta) collaborates in the celebration of the event with its main promoter, the International Fact-Checking Network of the Poynter Foundation.

The meeting was made possible by funding provided by National Endowment for Democracy, Duke Reporters' Lab, Bill & Melinda Gates Foundation, Omidyar Network, OSF and Google.

Follow the event here or with the # GlobalFact4.