Di Xiao

> Edit: Real issue here is the fact that xet blob is not multiprocess safe. That must be fixed before this can be parallelized. Oh! which part is not?

@satyrmipt I think the error message "[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain" indicates a cert chain verification failure. Can you check if you have the root...

I suspect your proxy is manipulating the certs, let try this to check the certificate chain, can you run the below command and share the output: ``` openssl s_client -showcerts...

So indeed. The correct cert chain of huggingface.co is ``` depth=2 C=US, O=Amazon, CN=Amazon Root CA 1 verify return:1 depth=1 C=US, O=Amazon, CN=Amazon RSA 2048 M02 verify return:1 depth=0 CN=huggingface.co...

You don't need to installed `Amazon Root CA 1` or `Amazon RSA 2048 M02` as `Starfield Services Root Certificate Authority - G2` is the issuer of `Amazon Root CA 1`....

Hi @peepeepeepoopoopoo What's your huggingface-hub and hf-xet version? Also, are you behind any proxy or behind a firewall that doesn't white list domain `transfer.xethub.hf.co` or `cas-bridge.xethub.hf.co`?