Dear Daniil Sarkisyan, Thank you for reporting this issue. Indeed, looks like the hash for haniffa21.processed.h5ad was incorrect. It has been updated and the website should show the correct one: “add2501947c585ea6b6ef7429e4bd9f2”. Kind regards, Martin.- From: Daniil Sarkisyan <daniil.sarkisyan(a)igp.uu.se> Date: Friday, 23 April 2021 at 14:50 To: "cv19caingest(a)sanger.ac.uk" <cv19caingest(a)sanger.ac.uk> Subject: [Cv19caingest] wrong md5 checksum for https://covid19.cog.sanger.ac.uk/submissions/release1/haniffa21.processed.h… [EXT] Dear COVID-19 Cell Atlas maintainer, I downloaded haniffa21.processed.h5ad from you website twice as follows $ wget https://covid19.cog.sanger.ac.uk/submissions/release1/haniffa21.processed.h… ) And both times $ md5sum haniffa21.processed.h5ad gave me add2501947c585ea6b6ef7429e4bd9f2 haniffa21.processed.h5ad while you provide md5 checksum 42ad74a77fc289b77cfedb7b287f7e23 Since all other files of COVID-19 PBMC Ncl-Cambridge-UCL release 1.0 matched your md5 checksums perfectly, I suspect you provide wrong checksum for haniffa21.processed.h5ad Best Regards, Daniil Sarkisyan, Bioinformatician Department of Immunology, genetics and pathology, BMC B11:406b mobile: +46 70 885 9883, email: daniil.sarkisyan(a)igp.uu.se När du har kontakt med oss på Uppsala universitet med e-post så innebär det att vi behandlar dina personuppgifter. För att läsa mer om hur vi gör det kan du läsa här: http://www.uu.se/om-uu/dataskydd-personuppgifter/ E-mailing Uppsala University means that we will process your personal data. For more information on how this is performed, please read here: http://www.uu.se/en/about-uu/data-protection-policy