Any available ways to download CERA-20C or ERA-20C datasets after the Public Datasets Service closed on 1 June 2023?

Hi mate,

I am looking for some reanalysis data that can date back to 1900 (ERA5 begins only from 1940), CERA-20C and ERA-20C are suitable ones, but they are not accessible from the website due to the closure of the Public Datasets Service on 1 June 2023.

Does anybody know any way to access them? TIA!