Add block header Record header Inserting header Inserted Canonical chain needs to be updated. Run headers GC. Used gas: 25280090677854 Finish headers GC. Used gas: 32172609111483 Add block header Record header Inserting header Inserted Canonical chain needs to be updated. Run headers GC. Used gas: 19980107287404 Finish headers GC. Used gas: 26647198338069