You're describing a different problem. Killcord solves the Insurance Policy problem: Suppose you're a whistleblower, who exfiltrated gigabytes of unredacted da

You're describing a different problem. Killcord solves the Insurance Policy problem: Suppose you're a whistleblower, who exfiltrated gigabytes of unredacted data from the NSA. So far you've leaked only redacted excerpts, but the NSA might kill you to stop your leaking. However, the NSA really doesn't want the whole archive leaked, or it would blow their agents' covers. So, you put the whole archive up on the net, encrypted, and set up Killcord to decrypt unless you keep checking in. This keeps you alive, since the NSA knows it'll leak if you're dead.