Your certificate seems perfectly valid. Something must be amiss with the recognized certificate authorities on my server since Oct 1. Christian Zimmermann FIGUGEGL! Economic Research Federal Reserve Bank of St. Louis P.O. Box 442 St. Louis MO 63166-0442 USA https://ideas.repec.org/zimm/ @CZimm_economist On Tue, 5 Oct 2021, Christian Zimmermann wrote:
$ wget https://collec.repec.org/Betweenness.csv --2021-10-04 18:51:19-- https://collec.repec.org/Betweenness.csv Resolving collec.repec.org (collec.repec.org)... 95.216.245.19, 2a01:4f9:2b:276c::2 Connecting to collec.repec.org (collec.repec.org)|95.216.245.19|:443... connected. ERROR: cannot verify collec.repec.org's certificate, issued by οΏ½/C=US/O=Let's Encrypt/CN=R3οΏ½: Issued certificate has expired.
Christian Zimmermann FIGUGEGL! Economic Research Federal Reserve Bank of St. Louis P.O. Box 442 St. Louis MO 63166-0442 USA https://ideas.repec.org/zimm/ @CZimm_economist