What is Window Proof of Spacetime (WindowPoSpacetime)?

Within the Filecoin network, Window Proof of Spacetime (WindowPoSpacetime) is a specialized type of cryptographic proof which plays a central role in verifying data on the Filecoin network under the Proof-of-Spacetime (PoSpacetime) consensus algorithm. Via WindowPoSpacetime, commitments made by storage miners are audited in 24-hour period increments, which results in a zk-SNARK-compressed proof being published to the Filecoin blockchain.