Itś a virtual operation that converts about 40k Hive into HBD per day. The operation itself doesnt show up on the blockexplorers (just like the "interest" paid to HP Holders doesn't generate a transaction) but you can keep track of it by checking the balance of the @hive.fund account.

I collect stats that I consider important about the blockchain every day so I can verify that the code is working as intended.

Correction: It can be verified on hiveblocks.com but not on hiveblockexplorer.com.