/usr/share/ca-certificates/igtf-classic/DigiCertGridRootCA-Root.crt is in igtf-policy-classic 1.59-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | -----BEGIN CERTIFICATE-----
MIIDxTCCAq2gAwIBAgIQAmE4fDe0OaWE+qFSUtrI6jANBgkqhkiG9w0BAQUFADBs
MRMwEQYKCZImiZPyLGQBGRYDY29tMR0wGwYKCZImiZPyLGQBGRYNRGlnaUNlcnQt
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PE/n/NrqMkF6lZZuQuSooicEZkcxCmyM2Vp7XQXe+qCzILYsp5rEX4FXclT0SMiX
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H/O8BdLIR2z2UmsAbnraQFMWS0SFvFfUH0BccrAEJ5RvLEMlXBy9haeNLTua7May
2amGScIUFi6R
-----END CERTIFICATE-----
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