After TZScan is closed, I can't use old API the check the CIRCULATING SUPPLY. Then I Got the new block explorer(TZStats) in HERE. But I found the number of CS and TS in CMC is totally different. Which one is CURRENT?
tzstats has a rather detailed breakdown
Their definition of "circulating supply" is total tokens - unclaimed - frozen (in baking deposits) - TF's tokens that are still unvested, which is a reasonable definition.
I'm not sure what CMC uses but they're likely not very current and likely less rigorous.