I think what I want to emphasize is that as a committee you're asking all the right questions in terms of how you actually make this functional and an experience that's worth a citizen's time to go on and sign.
I'm not an expert on digital interface but I think there are experts out there. Think about websites like Change.org and Avaaz.org that host thousands of petitions, and they've managed to do it in a way that allows citizens to try to find those petitions that they want to sign.
I think a really important design feature is that it needs to be shareable, like whatever petition is very shareable on social media. I know the U.K. platform does do this where it's very easy to tweet or Facebook the link to the petitions so that you're driving traffic from your followers or your friends to a petition. What we know from how petitions work and the curve on participation is that with petitions generally most of the activity happens in the first 10 hours of a petition's lifetime, so if you don't have thousands of signatures happening in those first 10 hours, you're probably not going to have a petition that reaches 10,000 or 100,000 threshold.