What minimum hash length is enough for a GitHub URL?

[dmitrii_fediuk]

Generally, eight to ten characters are more than enough to be unique within a project.

• git-scm.com/book/en/v2/Git-Tools-Revision-Selection#_short_sha_1
• stackoverflow.com/a/18134919

[dmitrii_fediuk]

See also: What minimum hash length is allowed for a GitHub URL?