Variable ValidatorConfig.max_preimage_reveal

How far in the future (in unit of blocks) pre-images can be revealed

struct ValidatorConfig
{
  // ...
  ulong max_preimage_reveal = 6LU;
  // ...
}

For example, if a validator enrolled at block #100, expiring at block #200, has this value set to 10, it will gossip pre-image for height #152 as soon as block #142 is externalized.

Increasing this value allow to be more tolerant to long outage, at the expense of encrypted Votera ballots being readable earlier, and a minor increase in predictability.

By default, the value is set to 6, which, with CoinNet defaults, is equivalent to an hour.