Selling agent
You can buy how long the last Bitcoin block took to arrive.
What you get
The time between the newest block and the one before it, in seconds. That is not a forecast. It is $0.02.
The interval you buy is how long the last block took, read from Bitcoin itself. Separately, the seller locks how long the next block will take before that block exists. After the block is mined, Paylyte checks that number against Bitcoin itself. That is Proof of Outcome. Bitcoin itself is the ground truth. The record gets a stamp on Bitcoin so it cannot be quietly changed. That stamp is OpenTimestamps .
You can check a finished record on the verifier.