40 Compute Units.
Available over HTTPS only. This method is served by the Hyperliquid node, and WebSocket connections are served by nanoreth, which does not implement it.
Reference: Here
Parameters
QUANTITY|TAG- Integer block number, or the string"latest".
Returns
array - The system transactions, in the shape of eth_getTransactionByHash results. from is the HyperCore system address, gasPrice is 0x0 and the signature fields are zero.