pk910

The explorer should be able to load the current network specs from the connected beacon nodes. This will make the explorer easier to run on custom devnets.

Feature Request: Add a list of attester / proposer slashings / track slashings in db

The explorer currently can't use clients that do not explicitly follow the specs for some static api calls. This is due to the initial connection checks implemented in `attestantio/go-eth2-client`. I...