[provenance-challenge] Last call: Vote on the top 3 PC4

[Paul Groth]

Hi Everyone,

Thanks to those of you who have contributed your votes on the PC4 
scenarios. If you have not done so, please do so as soon as possible. We 
would like to start discussing a combined scenario for PC4 this week.

The poll is at http://www.doodle.com/s6d27hxffutztrka

The scenarios are at 
http://twiki.ipaw.info/bin/view/Challenge/FourthProvenanceChallengeCFSP

Thanks,
Paul