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Do you mean a minimum balance in the participant's RSA before they can claim it?

Or a minimum balance in the user's wallet before they can use MRC?

Min incoming balance via POR before claiming manually.

brought this idea up during the hangout today. positive response.

That could work but it has to be small enough that people with really low end machines like PIs can claim within 6 month, ideally once a month. this way you can at least get 6 rewards on one beacon

Yeah, perhaps it could be a min of 1 or a % of monthly earnings?