Add block header Record header Inserting header Inserted Canonical chain needs to be updated. Run headers GC. Used gas: 22348314948342 Finish headers GC. Used gas: 29305335822615 Add block header Record header Inserting header Inserted Canonical chain needs to be updated. Run headers GC. Used gas: 18097227201612 Finish headers GC. Used gas: 24764412869217