# Disputes Subsystems

If approval voting finds an invalid candidate, a dispute is raised. The disputes
subsystems are concerned with the following:

1. Disputes can be raised
1. Disputes (votes) get propagated to all other validators
1. Votes get recorded as necessary
1. Nodes will participate in disputes in a sensible fashion
1. Finality is stopped while a candidate is being disputed on chain
1. Chains can be reverted in case a dispute concludes invalid
1. Votes are provided to the provisioner for importing on chain, in order for
   slashing to work.

The dispute-coordinator subsystem interfaces with the provisioner and chain
selection to make the bulk of this possible. `dispute-distribution` is concerned
with getting votes out to other validators and receiving them in a spam
resilient way.