Compared to the mock version of the explorer that I showed last week I have rewritten it so that pages can load even before they have received the data. For example if a user attempts to navigate to a block the page will immediately load and display "loading block". And since last week I have like Eric said implemented blockstream as a external data source so that I have been able to continue to test and develop the explorer before I can get it hooked up to libbitcoin node.