To the ASIC owner,

The most efficient useful practical miner at the time is the S19j Pro. I owning one know the work going into an asic securing the bitcoin ledger. This is work. Proof of time is required such as powering a 220V, space ventilation / exhaust and routing to IP. There are also nonsupplemental webpages. The S19j Pro is not easily found in stock but once purchased can be making you $10,000 - $12,000 annually. The electrical work goes into securing the bitcoin ledger. Roughly one block/10min.

-Chicago