When a user transfer HIVE to the DHF account (hive.fund), the amount is immediately converted to HBD and this virtual operation is generated.
This virtual operation is also generated during block processing every day during daily proposal maintenance.
Note: a portion of the HIVE on the treasury balance is converted to HBD and thus increases the funds available for proposals.
This table currently only contains records from hardfork 26 and later. It is planned to perform a replay of the blockchain to re-inject data relating to previous events.