Hello,
an earlier version of this has been send to tor-relays [1] and I got some feedback from irl and relay operators via ML and github issues.
Now I'd like to hear from the tor developer community. Please send your feedback until 2017-10-27.
example ContactInfo: https://atlas.torproject.org/#details/1EBFC733CCD952F7F7616EBBA7BC6B8E6F2F0C...
Overview ---------
Tor's ContactInfo descriptor field was primarily intended to contain an email address and PGP key fingerprint but since this field accepts an arbitrary string it has been used for multiple other other purposes (website urls, donation information, bitcoin addresses, ...). Making use of provided information in an automated way is hard since there is no specification on how this string should look like. This is an specification to formalize the ContactInfo string.
Motivation (excerpt) -----------
- collect additional (self-reported) relay metrics (for things like atlas and https://nusenu.github.io/OrNetStats ) - exmples: How many use tor's Sandbox/OfflineMasterKey/KIST feature? - This data could provide tor developers with information on how well tested/how much used new features (like Sandboxes) are before changing defaults.
The entire document can be found here: https://github.com/nusenu/ContactInfo-Information-Shareing-Specification
regards, nusenu
[1] https://lists.torproject.org/pipermail/tor-relays/2017-October/013274.html