CrowData is a tool to collaborate on the verification and release of data that otherwise would be hard or impossible to get via automatic tools like OCRs.
You install it in a web server and right away can start uploading documents and have a form for people to send information about the documents.
Crowdata is an open source project that was born when Manuel Aristaran was an Open News fellow at La Nacion in 2013. It was finally released as free software when Gabriela Rodriguez continued it for VozData in 2014. Thanks to Cristian Bertelegni and La Nacion for contributing to the code.