On Tue, Sep 24, 2024 at 04:03:55PM +0200, Toralf Förster via tor-relays wrote:

Never cared about this before, but isn't the "8" too often here? :

$ cat ~/tmp/tor_bridge_stats i10 bridge-ips ru=264,br=16,de=16,us=16,au=8,cl=8,co=8,cz=8,dz=8,eg=8,es=8,fr=8,gb=8,gr=8,hk=8,id=8,in=8,ir=8,it=8,kr=8,lt=8,lv=8,nl=8,ph=8,sa=8,sg=8,tw=8,ua=8,ve=8 i11 bridge-ips ru=152,ir=16,cn=8,cz=8,de=8,gb=8,nl=8,pl=8,tr=8 i12 bridge-ips ru=224,by=8,cn=8,de=8,fr=8,in=8,ir=8,jp=8,nl=8,pl=8,ro=8,us=8 i13 bridge-ips de=8 i14 bridge-ips de=8,fr=8,ru=8 i15 bridge-ips de=8,ru=8 i20 bridge-ips de=8 i21 bridge-ips de=8 i22 bridge-ips ru=96,at=8,de=8,nl=8,pl=8,us=8 i23 bridge-ips ru=904,ir=48,eg=32,de=24,us=24,fr=16,ae=8,at=8,be=8,br=8,by=8,ca=8,co=8,cz=8,dz=8,fi=8,gb=8,gr=8,hk=8,hu=8,im=8,in=8,it=8,jp=8,kz=8,lv=8,ma=8,md=8,mm=8,na=8,ni=8,nl=8,pk=8,pl=8,sa=8,se=8,tm=8,tr=8,tz=8,uz=8,ve=8,ye=8,za=8 i24 bridge-ips de=8 i25 bridge-ips ru=112,ch=8,cn=8,de=8,gh=8,in=8,ir=8,ke=8,mm=8,mu=8,nl=8,tr=8,us=8 i26 bridge-ips de=8 luchs bridge-ips de=8

The numbers are rounded to reduce precision.

https://spec.torproject.org/dir-spec/extra-info-document-format.html

"bridge-ips" CC=NUM,CC=NUM,... NL
   [At most once.]

List of mappings from two-letter country codes to the number of unique IP addresses that have connected from that country to the bridge and which are no known relays, rounded up to the nearest multiple of 8.

https://metrics.torproject.org/reproducible-metrics.html#bridge-users

From each number of unique IP addresses, subtract 4 to undo the binning operation that has been applied by the bridge.