[metrics-bugs] #21909 [Metrics/Onionoo]: add metadata about used geoip data

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#21909: add metadata about used geoip data
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     Reporter:  cypherpunks      |      Owner:  metrics-team
         Type:  enhancement      |     Status:  new
     Priority:  Medium           |  Milestone:
    Component:  Metrics/Onionoo  |    Version:
     Severity:  Normal           |   Keywords:
Actual Points:                   |  Parent ID:
       Points:                   |   Reviewer:
      Sponsor:                   |
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 Hi,

 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:
 1) onionoo updated its maxmind geoip file
 2) 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.

 thanks!

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21909>
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