The account who created the order
The amount of the cancelled order
HIVE or HBD
This virtual operation is generated every time an existing limit order is canceled. It happens on explicit call (first operation), or in the rare case of filling a limit order (second or third operation) when, after filling most of it, the remaining funds are too small (they would round to zero when sold).
This virtual operation is also generated during block processing for orders that reached their expiration time without being filled.
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.