Add block header Record header Inserting header Inserted Canonical chain needs to be updated. Run headers GC. Used gas: 22384438252272 Finish headers GC. Used gas: 29116031743581 Add block header Record header Inserting header Inserted Canonical chain needs to be updated. Run headers GC. Used gas: 18046388906622 Finish headers GC. Used gas: 24713574574227