Add metadata about used geoip data
I'm analyzing the tor network by looking at (historic) onionoo details documents.
When I see that a relay changed AS over time there are multiple reasons for that:
- onionoo updated its maxmind geoip file
- the relay actually changed to another AS or IP range was relocated to another AS
For this reason it would be great if you could add a metadata field to the onionoo document in which you publish the geoip timestamp or hash, so we can tell (1) and (2) apart.