Module inactivity_scores 

Delta encoding for validator inactivity scores.

Inactivity scores are represented as a vector indexed by validator index. This module encodes changes between two score vectors without storing the complete target vector.

Two representations are supported:

• A sparse representation containing only changed indices and their target values.
• An all-zero representation for transitions to a completely zero-valued target vector.

Newly added validator scores are stored separately as an extension.

Deltas produced by diff_inactivity can be applied in place using apply_inactivity.

Functions

apply_inactivity

Applies an inactivity-score delta to a vector in place.

diff_inactivity

Computes a compact delta between two validator inactivity-score vectors.