09:00 AM Polkadot's Data Availability and Validity Scheme: Alistair Stewart 09:20 AM Improving the Federated 2-way Peg: Matt Luongo 09:40 AM Interblockchain Communication & Interchain Topology: Christopher Goes 10:00 AM PANEL: Community Interoperability - Vitalik Buterin, Terry Culver, Josh Swihart, Jae Kwon 10:45 AM PoS Security and Ethylene: Emin Gün Sirer 11:20 AM Trains, Planes and Network Upgrades: Danno Ferrin, Tim Beiko 11:45 AM Toward Backward Compatible Ethereum Upgrades: Wei Tang 12:10 PM UX Awards