PoC V5 Chain Var Update

With the launch and activation of PoC v5, the team quickly realized that we needed to bring back some of the PoC RSSI related probability weights back to the path construction algorithm to allow building paths with potentially known valid witnesses as next hops.

Note that the targeting mechanism is still deterministically random to avoid the high scoring feedback loops we observed with PoC V4.

Content

We've updated the following chain vars:

Var	Existing	Proposed	Rationale
poc_v4_prob_rssi_wt	0.0	0.2	Re-introduced to bias for selecting next hop witnesses which have proven good RSSI values when constructing poc path
poc_v4_prob_time_wt	0.0	0.2	Re-introduced to bias for selecting next hop witnesses which are not stale when constructing poc path
poc_v4_prob_count_wt	0.0	0.2	Re-introduced to bias for selecting next hop witnesses which have been rarely seen when constructing poc path
poc_v4_randomness_wt	1.0	0.4	Reduce bias for selecting next hop witness entirely randomly

The audit log can be found here.

Deployment Plan

The chain var was activated in block 140720.