Exercice 3 : Third point of the Exercice section

[psychomb]

We can read "We will use 0 for the KES period, since we are creating the first KES key."

The CLI definition for the KES period is :
--kes-period NATURAL The start of the KES key validity period.

Therefore, it is unclear in the exercice if --kes-period 0 was selected because it was early days/hours in the blockchain or if it is because it is the first KES used.

Could you clarify if the start of the KES key validity period is actually the slot height we want to new op-cert to be valid at ? May be also in the CLI ?