[tor-dev] terminology explaination: identifier.

Hi, On the following URL : http://hctxrvjzfpvmzh2jllqhgvvkoepxb4kfzdjm6h7egcwlumggtktiftid.onion/stats.... the quote: *All per-graph statistics files are available for download via an URL of the form:* *https://metrics.torproject.org/identifier.csv* Remains ambiguous to me... *object of this email: *What is an /identifier/ ? Do the author imply the Nickname / Fingerprint ?... Do they imply the |KP_relayid_ed| that requires specific relay permission when the mere fingerprint is safer ?... *Would you kindly increment the torproject webpage with an example (or a set of examples) @ *http://hctxrvjzfpvmzh2jllqhgvvkoepxb4kfzdjm6h7egcwlumggtktiftid.onion/stats.... Cheers, Carlos.