The Digitial Currency is always be increasing as it is creating by minning and as more and more people mine coins, it will always increase.
Its not like FIAT which require Gold to backup etc
You are dreaming mate
. Fiat doesn't need gold or anything "to backup" since 1971. Those are backed only by government regulations and law (AKA promises) what supposed to guarantee the value of that piece of paper
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To OP:
You can find the max supply for coins on coingecko. Click on the coin and then you will get a detailed information page.