Example uses 3 seconds because it's the default block production time of the Polkadot relay chain, but for may actually vary following testing at later stages.
For example, using an average Month (with 30 days) and the above mentioned 3 seconds interval, the Counter Node would combine 864000 timestamps x wallet into a detailed ledger of that month's activity.
The condition specifies "at least equal" for a specific reason: the retainer wallet (see graph above). This wallet represents the sum of costs of operations, tax and retained earnings (the "gross" part of revenues generated that is subtracted to operate and expand the exchange).Particularly, retained earnings is the only Company "managed" allocation within our systems, and is used to create a liquid economic cushion to cover a variety of needs, from volatile changes in the market, to increases in costs and expansions, and more.What this boils down to is that 9 out of 10 times, the actual amount distributed in any "current" period will actually be larger than the "expectation" because non-spent cost allocations or exceeding retained earnings are added on top of the expectation.
Provable finality means definitive and irreversible entries in a blockchain ledger.