From files downloaded 14.12.2017:
$ cat riseupCA-signed-sha256.txt
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
RiseupCA.pem
. SHA1 Sum: 351477162bb44dc5b9bd15bcba706763b987c006
. SHA256 Sum: f25e446989c5edfc308fe87d6143118e927a0b41cb7c59c0bba407b04266891f
-----BEGIN PGP SIGNATURE-----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=XbAo
-----END PGP SIGNATURE-----
$ sha256sum RiseupCA.pem
aad40862504390365b1a2dff7741fb92c541e0dadcc2b4886f7f3abe7d94b859 RiseupCA.pem
The text file includes the fingerprint of the certificate, not of the .pem file, which is what you're calculating. Instead follow these instructions:
https://riseup.net/en/security/network-security/riseup-ca#calculate-the-fingerprint-of-riseupcapem
Let me know if you need anything else.
https://riseup.net/en/security/network-security/riseup-ca#calculate-the-fingerprint-of-riseupcapem
Let me know if you need anything else.