Optional
max_Max age of evidence, in time.
It should correspond with an app's "unbonding period" or other similar mechanism for handling Nothing-At-Stake attacks.
Optional
max_Max age of evidence, in blocks.
The basic formula for calculating this is: MaxAgeDuration / {average block time}.
Optional
max_This sets the maximum size of total evidence in bytes that can be committed in a single block. and should fall comfortably under the max block bytes. Default is 1048576 or 1MB
EvidenceParams determine how we handle evidence of malfeasance.