The event json would point the user to a file hash hosted in a blossom server. This could be structured in one of two ways: A) the blossom server requests a payment per megabyte of storage required paid for by the content creator B) users pay the blossom server hosting the video to download it. I personally prefer option B as it would give several servers an incentive to host copies of any blob. As for whether users would pay for this, which I assume is the next question you may ask, yes they would. Netflix has 300 million subscribers, and those are people paying monthly for essentially a more widespread version of my option B. They put up caching servers in many ISPs data centers and pay them, in order to make users download their content faster