Now try getting the signature file for this artifact so you can validate it hasn’t been tampered with.The asc file should have a GPG signature that was created with a publicly accessible key.To see for yourself, compare the results of these two urls: first that this pom has no repository element in it, therefore there is no need to modify the file at all.
Well, if you care about open source licensing, they are.
If you download things from the internet, validating PGP signatures isn't something you should think about doing, it is something you need to do.
It is the only way to guarantee that the artifacts from a remote repository are sound, and Sonatype has invested a great deal of time into making sure that artifacts added to the Central Maven repositories, the Apache repositories, and the Codehaus repositories are all accompanied by valid PGP keys that are on a public keyserver.
The indexes produced by Artifactory are using the old-style Lucene zip, but with a newer version of Lucene.
This means it is non-standard and is not consumable by all IDE plugins or other index clients.
Take a look at this POM from Central: The License header of the file has been completely stripped away.