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Re:Sign arbitrary data with your SSH keys by int_19h on Sunday November 14, 2021 @02:33AM (#29215912)
It's visible so that your commits that are signed by that key can be verified by other GitHub users. There's an option somewhere in settings that makes it so that any commit from you that is not signed is automatically flagged.
Re:Sign arbitrary data with your SSH keys by jchw on Sunday November 14, 2021 @05:14PM (#29221227)
Signing Git commits by SSH public key is brand new. GitHub has been doing this since before SSH or Git supported this.