Can someone explain the meaning of epoch in clique? So if my genesis file contains:

    "period": 0,
    "epoch": 0

What does it mean? As far as I understand period means the time in which it is allowed to create one block which is then set to 0 second but what about epoch?

  • 1
    If period is 0, a block will be mined everytime there is a new tx broadcasted. It could be several time per second, or once in an hour.
    – Xavier59
    Jun 29, 2021 at 9:13

1 Answer 1


There may be changes between the members of poa, such as adding or decreasing, the underlying voting code will be called to make a decision, and the variable value of this decision is only valid within a century. If a conclusion cannot be voted within this century, then Voting to be relaunched in the next century

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