Accounts, including exchange accounts, can receive funds in two ways: an “external”, or “top-level” transfer (eg. if f1XXX
sends a message to f1ZZZ
that transfers 1 FIL), and “internal” transfers” that result from a subinvocation. An example of “internal” transfers in Filecoin today is our multisig support: f1XXX
could send a top-level message to a multisig f2YYY
, which then transfers 1 FIL to f1ZZZ
as a result.
If you already support multisig f2
transactions on Filecoin, then there should be no change for you. However, if this sounds unfamiliar, please keep reading