Setup: We use metamask as an example wallet and configure it to connect to a local Ethereum node turning on the RPC. The RPC node further connects to a separate miner node.
Demo: Because metamask has an internal cache with about 20 second expiration policy, we in this demo issue a "getBlock" query request every 20 seconds. You can see the two queries return different block numbers/heights, implying actual RPC queries are sent and results are not returned from the cache.
Payload:20M Freq:10
Payload:50M Freq:10
Payload:100M Freq:10
Payload:200M Freq:10