The petition is open from April 10th to August 8th. So far, it's received over 11,000 signatures. I just signed it. You need to provide an email address (in addition to name, postal code, etc.), which they send a link to, and by clicking that link your signature is added (this is a 1 signature per person safeguard). I looked at the collection/disclosure of personal info briefly. It looks like no info other than #s signed per province/territory will be disclosed and all personal info will be destroyed 6 months after the e-petition closes.
Link to sign the e-petition: https://www.ourcommons.ca/petitions/en/Petition/Details?Petition=e-4922