Hosting an event? Planning a celebration? Going on a trip? CBOH ("SEE-boh") is an event facilitation tool for COVID-19 vaccinations and testing statuses. Built by engineers and designers from MIT and Harvard with best-in-class data security, CBOH allows hosts to create events, invite guests, and manage proof of attendees’ vaccination or testing status. Attendees can upload and store their CDC COVID-19 Vaccination Record Card and other COVID testing results to attend social gatherings - so you can get back to sharing life with peace of mind.