Marty's Ƀent Issue #1055: BitMEX adds user verifiable Proof of Reserves This is a novel way to implement a Proof of Reserves system and should raise the bar for the industry.
Marty's Ƀent Issue #544: Bitcoin vaults. Yes, please! Slowly but surely, the vision comes together, usability and security seem to be on the up and up, and this system may turn out to be more idiot-proof than we thought.