Over 90% of chemistry literature freely available at pirate site
New analysis discovers Sci-Hub holds 69% of the world’s 82 million scholarly articles
More than 92% of chemistry journal papers – most of which are paywalled – are available for free from pirate site Sci-Hub, an analysis has revealed. On 19 March, Sci-Hub – most popular among researchers in China, India and Iran – released a list of digital object identifiers (DOIs) of all the papers it holds. The authors interrogated this database to discover that Sci-Hub contains nearly 69% of all 81.6 million articles registered in DOI registry Crossref. This number rises to over 85% when taking into account only paywalled content.