Reliably Enable Cold Storage Plots and Harvester Challenge Specialisation.

[mxfh]

Crosspost from:
https://chiaforum.com/t/is-the-plot-elegibility-deterministic-could-this-enable-huge-cold-storage-plots-power-savings/7069?u=mxfh

There seems to be a serious flaw in the PoC green argument, why potentially rule out cold storage at all, with the same arbitrary 30 second cutoff for all plot sizes. Why not allow multiples of this lookup time for higher k values. Would take longer to determine a challenge winner, but I don’t see why this has to be immediate.

Wondering, if the protocol could be tweaked to allow this, to enable a significantly greener stable netspace phase chia:

Are the plot id groups per 1/512 chance stable?

If so, farmers could specialize on a fraction of the challenges. In the extreme, if you go all in on the 1/512 chance, you would only have to power up cold storage twice a week (10m * 512 equals about 3.5 days), with only minimal power consumption for the node looking for matching challenge ids.

Regarding the plot size dependant threshold times:
Im thinking about a 20 seconds to a few minutes intervall in practice to spin up hdds / wake up relevant harvester nodes.
k32 keeps having 30 seconds
k33 has 1 minute
k34 2 and so on …
Reasonable cutoff would be 8 minutes then, so challenge is guaranteed to be determined within the 10 minute window.

Instead of mandatory switching of to larger plot sizes in the future to compensate for near real time plot threat, gradually reduce the allowed base factor response time threshold instead.