{"id":2973,"date":"2022-12-12T17:31:10","date_gmt":"2022-12-12T17:31:10","guid":{"rendered":"https:\/\/gifct.org\/?page_id=2973"},"modified":"2023-04-06T09:06:35","modified_gmt":"2023-04-06T08:06:35","slug":"hsdb","status":"publish","type":"page","link":"https:\/\/gifct.org\/hsdb\/","title":{"rendered":"GIFCT\u2019s Hash-Sharing Database"},"content":{"rendered":"

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GIFCT\u2019s Hash-Sharing Database enables GIFCT member companies to quickly identify, and share signals, of terrorist\u00a0 and violent extremist activity in a secure, efficient and privacy-protecting manner.<\/b><\/h3>\n

[\/spb_text_block] [spb_blank_spacer height=”60px” responsive_vis=”hidden-xs” width=”1\/6″ el_position=”last”] [spb_blank_spacer height=”30px” responsive_vis=”hidden-xs” width=”1\/1″ el_position=”first last”] [\/spb_row] [spb_row element_name=”Hash Sharing” wrap_type=”full-width-contained” row_bg_type=”color” row_bg_color=”#e1e7ef” color_row_height=”content-height” bg_type=”cover” parallax_image_height=”content-height” parallax_image_movement=”fixed” parallax_image_speed=”standard” bg_video_loop=”yes” parallax_video_height=”window-height” row_id=”row-hash” row_top_style=”none” row_bottom_style=”none” parallax_video_overlay=”none” row_overlay_opacity=”0″ remove_element_spacing=”no” row_col_spacing=”0″ row_col_pos=”default” row_col_equal_heights=”no” row_expanding=”no” row_animation=”none” row_animation_delay=”0″ minimize_row=”yes” simplified_controls=”no” custom_css_percentage=”no” custom_css=”margin-top: 0px;margin-bottom: 0px;padding-top: 20px;padding-left: 20px;padding-right: 20px;padding-bottom: 20px;” border_styling_global=”default” width=”1\/1″ el_position=”first last”] [spb_blank_spacer height=”60px” responsive_vis=”hidden-xs” width=”1\/1″ el_position=”first last”] [spb_video link=”https:\/\/vimeo.com\/564638166″ remove_related=”yes” autoplay=”no” full_width=”no” width=”1\/1″ el_position=”first last”] [spb_blank_spacer height=”60px” responsive_vis=”hidden-xs” width=”1\/1″ el_position=”first last”] [\/spb_row] [spb_row element_name=”How Does it Work?” wrap_type=”full-width-contained” row_bg_type=”color” row_bg_color=”#ffffff” color_row_height=”content-height” bg_type=”cover” parallax_image_height=”content-height” parallax_image_movement=”fixed” parallax_image_speed=”standard” bg_video_loop=”yes” parallax_video_height=”window-height” row_id=”row-url” row_top_style=”none” row_bottom_style=”none” parallax_video_overlay=”none” row_overlay_opacity=”0″ remove_element_spacing=”no” row_col_spacing=”0″ row_col_pos=”default” row_col_equal_heights=”no” row_expanding=”no” row_animation=”none” row_animation_delay=”0″ minimize_row=”yes” simplified_controls=”no” custom_css_percentage=”no” custom_css=”margin-top: 0px;margin-bottom: 0px;padding-top: 20px;padding-left: 20px;padding-right: 20px;padding-bottom: 20px;” border_styling_global=”default” width=”1\/1″ el_position=”first last”] [spb_blank_spacer height=”60px” responsive_vis=”hidden-xs” width=”1\/1″ el_position=”first last”] [spb_column col_sm=”6″ padding_horizontal=”0″ width=”1\/2″ el_position=”first”] [spb_text_block animation=”none” animation_delay=”0″ simplified_controls=”yes” custom_css_percentage=”no” padding_vertical=”0″ padding_horizontal=”0″ margin_vertical=”0″ custom_css=”margin-top: 0px;margin-bottom: 0px;” border_size=”0″ border_styling_global=”default” width=”1\/1″ el_position=”first last”]<\/p>\n

How does hash-sharing work?<\/h3>\n

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Known as perceptual hashes, a hash is a numerical representation of original content (video, image, PDF) that\u00a0 cannot be reverse-engineered to recreate the content. These hashes are then added to the database with a series of labels to help other members understand what content corresponds to the hash, including content type, terrorist entity that produced the content, and its behavioural elements. A GIFCT member can then select a hash to see if it identifies and matches to visually similar content on their platform. As a result, members are sharing signals about terrorist content they have identified on their platform so that other members can quickly identify if the same content is shared on their platform and assess it in line with their policies and terms of service. All without sharing any user data between companies.<\/span><\/p>\n

When a\u00a0 member reviews content corresponding to a hash they can use the feedback tool in the database to\u00a0 tell us whether they agree or disagree that\u00a0 the\u00a0 hash is correctly labeled and meets GIFCT\u2019s taxonomy, or criteria for inclusion.\u00a0 At GIFCT, we respect that each member might operate a little differently. We don\u2019t tell our members how to use the hashes or how to apply their own policies. Rather, we are here to help our members collaborate, and together we can make terrorists ineffective online.<\/span><\/p>\n

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Hash-Sharing Database Taxonomy<\/h3>\n

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Hashes added to the database must fit within GIFCT\u2019s <\/span>Taxonomy<\/span><\/a>, otherwise understood as inclusion criteria. This taxonomy addresses content based on a terrorist or violent extremist entity producing the content and the type, or behavioral elements, of the content the entity produced.<\/span><\/p>\n

This taxonomy contains a series of parameters for inclusion in the database that takes into account:<\/span><\/p>\n