OK. curiosity got the better of me.  I took a random sample of 20,368 HS descriptors and just 131 were authenticated - that's about 0.6%.

The code I used is here:
https://github.com/drgowen/tor-research-framework/blob/master/src/main/java/tor/examples/HSIsAuthed.java

Best
Gareth

PS - I only took a sample (rather than the whole batch) because each HS descriptor is in its own file and it takes ages to process - nevertheless, because of the way its collected the sample should be representative.

--
Dr Gareth Owen
Senior Lecturer
Forensic Computing Course Leader
School of Computing, University of Portsmouth

Office: BK1.25
Tel: +44 (0)2392 84 (6423)