A greeting postcard from the
@cardano PoolHash war room, where engineers observe how stake pool operators choose to update their nodes in order to maintain the valid chain fork.
Quick legend explanation:
The sharp turn in the green line at 8 am UTC this morning marks the fork.
Later today, we also started tracking the bad chain (red line).
The bad chain had more stake and grew much faster than the one without the malicious transaction.
The purple line shows the difference between the two forks (note the different scale on the y-axis).
In the mid-afternoon, we reached a point where the majority of the stake switched (patched) from the bad chain to the good chain.
Since then, the delta (purple) has continued to shrink.
Later this evening, when the green line crosses the red one, all the unpatched nodes that are still on the bad chain will also switch to the good one, as it will have become the longer one (Ouroboros at work).
Let's hope this is a unique opportunity to watch such a chart and network!