Add block header Record header Inserting header Inserted Canonical chain needs to be updated. Run headers GC. Used gas: 22391712874830 Finish headers GC. Used gas: 29284325925399 Add block header Record header Inserting header Inserted Canonical chain needs to be updated. Run headers GC. Used gas: 17128648500975 Finish headers GC. Used gas: 23803281359400