Mirrortables are to cap tables what stablecoins are to fiat currencies. They streamline and internationalize the logistical mess of angel investing.
Balaji suggests managing a cap table on the blockchain.
This is an interesting companion to the reading on Open Cap Table Coalition - Canadian members?
I mentioned an open source project for Open Cap Table. Doing something that read/writes Open Cap Table format and syncs it with mirrortable would be a great project.