How can we secure personal data in an age when it has become fully commoditized? This question and more are answered by Sean Moss-Pultz, the co-founder and CEO of Bitmark, working to create a property system for establishing value and legal control over the world's data. Property rights were invented for land (real property) and then ideas (intellectual property), but none extend to the digital world. Sean defines the digital property, defends it, and makes it economically divisible. Their most recent project helped track Covid-19 spread in a community.