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This is an edited extract from the start of the Verification Handbook, published this week by the European Journalism Centre and currently available online.

The public relies on official sources such as news organisations, emergency services and government agencies to provide credible, timely information.

But, at the same time, these organisations and institutions increasingly look to the public, the crowd, to help source new information and bring important perspective and context. When it works, this creates a virtuous cycle: Official and established sources of information - government agencies, NGOs, news organisations – provide critical information in times of need, and work closely with the people on the ground who are first to see and document an emergency.

The combination of the human and the technological with a sense of direction and diligence is ultimately what helps speed and perfect verificationVerification Handbook
To achieve this, journalists and humanitarian and emergency workers must become adept at using social media and other sources to gather, triangulate and verify the often conflicting information emerging during a disaster. They require proven processes, trustworthy tools, and tried and true techniques. Most of all, they need to gain all of the aforementioned before a disaster occurs.

A disaster is no time to try to verify on the fly. It's not the moment to figure out what your standards and practices are for handling crowdsourced information. Yet it is what many – too many – newsrooms and other organisations do.

Fortunately, an abundance of tools, technologies and best practices have emerged in recent years that enable anyone to master the new art of verification, and more are being developed all the time.

It is, in the end, about achieving a harmony of two core elements: preparing, training and coordinating people in advance of and during an emergency; and providing them with access and resources to enable them to take full advantage of the ever-evolving tools that can help with verification.

The combination of the human and the technological with a sense of direction and diligence is ultimately what helps speed up and perfect verification. Admittedly, however, this is a new combination, and the landscape of tools and technologies can change quickly.

[The Verification Handbook] synthesises the best advice and experience by drawing upon the expertise of leading practitioners from some of the world's top news organisations, NGOs, volunteer and technical communities, and even the United Nations. It offers essential guidance, tools and processes to help organizations and professionals serve the public with reliable, timely information when it matters most.

The following tools are recommended in the final chapter of the handbook, but the intermediary chapters covering elements of best practice, training and preparation are equally important for verification in breaking news and emergency situations.

The Verification Handbook is currently accessible to view online, and will soon be available to download for free, in full, as a PDF or ebook.

Verifying identity

Use these online verification tools to find contact details and profiles of users who are active on social media. AnyWho: a free white pages directory with a reverse look-up function.

AllAreaCodes: allows users to look up any name and address listed against a phone number. The service is free if the number is listed in the White Pages, and they provide details about unlisted numbers for a small price.

Facebook Graph Search: provides a streamlined method to locate individuals for the verification of information. Journalists do not need to know the name of the person they are searching for; instead, they can search based on other known criteria such as location, occupation and age.

GeoSocial Footprint: a website where one can track the users' location "footprint" created from GPS enabled tweets, social check-ins, natural language location searching (geocoding) and profile harvesting.

Hoverme: this plug-in for Google Chrome reveals social media users' profiles on other networks from their Facebook news feed.

Identify: this Firefox plugin creates a profile of individuals' social media identities from any page.

LinkedIn: through work history and connections Linkedin can provide additional means to track an individual down and verify the person’s identity or story.

Muck Rack: lists thousands of journalists on Twitter, Facebook, Tumblr, Quora, Google+, LinkedIn who are vetted by a team of Muck Rack editors.

Numberway: a directory of international phone books.

Person Finder: one of the most well-known open source databanks for individuals to post and search for the status of loved ones affected by a disaster. Whenever a large scale disaster happens, the Google Crisis Team sets up a person finder. searches for an individual’s internet footprint and can help identify through multiple social media accounts, public records and contact details.

Rapportive: this Gmail plugin gives users a profile on their contacts, including social media accounts, location, employment.

Spokeo: a people search engine that can find individuals by name, email, phone or username. Results are merged into a profile showing gender and age, contact details, occupation, education, marital status, family background, economic profile and photos.

WebMii: searches for weblinks that match an individual's name, or can identify unspecified individuals by keyword. It gives a web visibility score which can be used to identify fake profiles.

WHOIS: finds the registered users of a domain name and details the date of registration, location and contact details of the registrant or assignee.

Verifying places

Did something actually happen where the crowd said it happened?

Eliot Higgins, aka Brown Moses, explains how he verifies videos using Google maps

Flickr: search for geolocated photos. extracts text from images which can then be put into Google Translate or searched on other mapping resources.

Google Maps: an online map providing high-resolution aerial or satellite imagery covering much of the Earth, except for areas around the poles. Includes a number of viewing options such as terrain, weather information and a 360-degree street level view.

Google Translate: can be used to uncover location clues (e.g. signs) written in other languages.

Météo-France: France’s meteorological agency makes freely available Europe focused radar and satellite images, maps and climate modelling data.

NASA Earth Observatory: the Earth Observatory was created to share satellite images and information with the public. It acts as a repository of global data imagery, with freely available maps, images and datasets.

Panoramio: photo-sharing website carrying millions of geolocated images uploaded to a Google Maps layer.

Picasa: search for geolocated photos.

United States ZIP Codes: an online map of the United States categorized according to ZIP code. Users are able to search for a specific ZIP code, or can explore the map for information about different ZIP codes.

Wikimapia: crowdsourced version of Google maps containing points of interest and descriptions.

Wolfram Alpha: a computational answer engine that responds to questions using structured and curated data from its knowledge base. Unlike search engines, which provide a list of relevant sites, Wolfram Alpha provides direct, factual answers and relevant visualizations.

Verifying images

Is a particular image a real depiction of what’s happening? another tool that can be used to reveal EXIF information.

Foto Forensics: this website uses error level analysis (ELA) to indicate parts of an image that may have been altered. ELA looks for differences in quality levels in the image, highlighting where alterations may have been made.

Google Search by Image: by uploading or entering an image’s URL, users can find content such as related or similar images, websites and other pages using the specific image.

Jeffrey’s Exif Viewer: an online tool that reveals the Exchangeable Image File (Exif) information of a digital photo, which includes date and time, camera settings and, in some cases, GPS location.

JPEGSnoop: a free Windows-only application that can detect whether an image has been edited. Despite its name it can open AVI, DNG, PDF, THM and embedded JPEG files. It also retrieves metadata including: date, camera type, lens settings, etc.

TinEye: a reverse image search engine that connects images to their creators by allowing users to find out where an image originated, how it is used, whether modified versions exist and if there are higher resolution copies.

Other useful tools

AIDR platform: uses human and computer monitoring to weed out rumours on Twitter. aggregates all social media into one platform allowing images and events to be cross-checked against each other.

Geofeedia: allows a user to search and monitor social media contents by location. By selecting a location, crowd contents from Twitter, Flickr, Youtube, Instagram and Picasa in this area are gathered in real time. Geofeedia can assist in the verification process, by cross-referencing posts within a particular area to see if details match.

HuriSearch: enables you to search content from over 5,000 human rights related web pages and easily filter these to find verifiable sources.

InformaCam: The app addresses the verification challenge by harnessing metadata to reveal the time, date and location of photos or videos. Users can send their media files, and their metadata, to third parties by using digital signatures, encryption (PGP) and TOR secure servers.

PeopleBrowsr: a platform and tool on which the crowd can monitor and synthesise social media and news into location and time sequence, which can then also be filtered down. The platform also features a credibility score measuring users' influence and outreach on social networks. an international directory of free public records. a site dedicated to debunking internet hoaxes, which can be used to cross-check UGC.

Verily platform: allows users to ask specific questions and provide UCG evidence for and against.

YouTube Face Blur: Developed out of concern for the anonymity of individuals who appear in videos in high-risk situations, this tool allows users to blur faces of people who appear in videos they upload. To use, when you upload a video on YouTube, go to enhancements, and then special effects. There you can choose to blur all faces in the video.

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