Short description: Hashtag used on Twitter Part of a series on File sharing Technologies * File hosting services * Online video platform * Peer to peer * Usenet * Web hosting * WebRTC * XDCC Video sharing sites * 123Movies * Dailymotion * Putlocker * YouTube BitTorrent sites * 1337x * Demonoid * ExtraTorrent * EZTV * isoHunt * KickassTorrents * Nyaa Torrents * RARBG * Tamil Rockers * The Pirate Bay * YIFY Academic/scholarly * ICanHazPDF * Internet Archive * Library Genesis * Sci-Hub File sharing networks * BitTorrent * Direct Connect * eDonkey * Freenet * Gnutella * Gnutella2 * I2P * list * OpenNap * WebTorrent P2P clients * BitComet * DC++ * Deluge * eMule * μTorrent * qBittorrent * Shareaza * Soulseek * Transmission * Tribler * Vuze * WinMX Streaming programs * Butter Project * Kodi * Popcorn Time * Torrents-Time Anonymous file sharing * Anonymous P2P * Darknet * Friend-to-friend * Private P2P * Proxy server * Seedbox * VPN Development and societal aspects * Timeline * Legality * BitTorrent issues By country or region * Canada * Japan * Singapore * UK * US Comparisons * Comparison of BitTorrent clients * Comparison of BitTorrent sites * Comparison of eDonkey software * Comparison of Internet Relay Chat clients * Comparison of Usenet newsreaders * v * t * e #ICanHazPDF is a hashtag used on Twitter to request access to academic journal articles which are behind paywalls.[1] It began in 2011[2] by scientist Andrea Kuszewski.[3][4] The name is derived from the meme I Can Has Cheezburger?[4] ## Contents * 1 Process * 2 Use and popularity * 3 See also * 4 References * 5 External links ## Process Users request articles by tweeting an article's title, DOI or other linked information like a publisher's link,[5] their email address, and the hashtag "#ICanHazPDF". Someone who has access to the article might then email it to them. The user then deletes the original tweet.[6] Alternatively, users who do not wish to post their email address in the clear can use direct messaging to exchange contact information with a volunteer who has offered to share the article of interest. ## Use and popularity The practice amounts to copyright infringement in numerous countries,[6] and so is arguably part of the 'black open access' trend.[7] The majority of requests are for articles published in the last five years, and most users are from English-speaking countries.[1] Requests for biology papers are more common than papers in other fields, despite subscription prices for chemistry, physics, and astronomy being, on average, higher than for biology.[1] Possible reasons for people to use the hashtag include the reluctance of readers to pay for article access and the speed of the process compared to most university interlibrary loans.[1] ## See also * Academic journal publishing reform * Open Access Button * Library Genesis * Sci-Hub ## References 1. ↑ 1.0 1.1 1.2 1.3 "Bypassing Interlibrary Loan Via Twitter: An Exploration of #icanhazpdf Requests". http://eprints.rclis.org/24847/2/gardner.pdf. 2. ↑ "Is Biblioleaks Inevitable?". Journal of Medical Internet Research 16 (4): e112. 2014. doi:10.2196/jmir.3331. PMID 24755534. PMC 4019771. http://www.jmir.org/2014/4/e112/. Retrieved 22 October 2015. 3. ↑ "OMG, that should be the new "I'm requesting a paper" hashtag!". 20 January 2011. https://twitter.com/AndreaKuszewski/status/28257118322688000. 4. ↑ 4.0 4.1 "How to Get Free Access to Academic Papers on Twitter". The Atlantic. 23 October 2015. https://www.theatlantic.com/technology/archive/2015/10/why-some-academics-are-sharing-their-papers-for-free/411934/. 5. ↑ "2015: #icanhazpdf? User Requests for Medical Literature on Twitter". Medical Library Association. 2015. https://journals.library.ualberta.ca/jchla/index.php/jchla/article/viewFile/26060/20282. 6. ↑ 6.0 6.1 "The scientists encouraging online piracy with a secret codeword". BBC. 21 October 2015. https://www.bbc.co.uk/news/blogs-trending-34572462. 7. ↑ "Gold, green, and black open access" (in en). Learned Publishing 30 (2): 173–175. 2017. doi:10.1002/leap.1096. 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