Community income vault — accrues a share of network yield as community-held income.
CBI is a standing vault inside the family. It accrues a share of network yield as community-held income rather than paying it out through any single hand.
CBI is a member of the V3 splitter, so it receives its pro-rata share of LEG 2 like every other family member. It is also run as a burn-boost family under the Overhead cause: its engine retires CBI units into the registry sink on the daily cycle.
In the family language, CBI is both a vault that holds for the community and an engine whose impact is retired forever.