New Kaspak
testnetLock a pot of KAS as 5 sealed envelopes. Each one opens once, with its own secret link. Whatever nobody opens comes back to you after the deadline.
Deadline
What the chain enforces: each envelope opens exactly once, with its own key; after the deadline only your wallet can sweep what is left. What it does not enforce: you minted every secret, so a drop is a promise made visible, not a promise made unbreakable.
Sweep an expired Kaspak
Connect the creator's wallet to sweep a drop whose deadline has passed.