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Date: Wed, 7 May 2014 17:47:17 -0700
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From: Gregory Maxwell <gmaxwell@gmail.com>
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Subject: Re: [Bitcoin-development] Announcing the Statoshi fork
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On Wed, May 7, 2014 at 2:07 PM, Wladimir <laanwj@gmail.com> wrote:
> On Wed, May 7, 2014 at 10:25 PM, Mike Hearn <mike@plan99.net> wrote:
>> Another is to export stats over regular TCP and make them public so
>> literally anyone can listen to the stats feed for any node.
>
> TOR does this as well: http://torstatus.blutmagie.de/
>
> No idea what they use to submit/gather the statistics.

The tor network works based on a centralized (well, in theory,
federated) trusted directory service. (More info in
https://gitweb.torproject.org/torspec.git?a=blob_plain;hb=HEAD;f=dir-spec.txt).

Much of data that is not related to relay related is just generated by
probes, e.g. semi-trusted bandwidth authorities that measure node
performance back to the directory authorities.

More info on their monitoring work is available here:
https://metrics.torproject.org/tools.html