Add block header Record header Inserting header Inserted Canonical chain needs to be updated. Run headers GC. Used gas: 22484472854538 Finish headers GC. Used gas: 29441493728811 Add block header Record header Inserting header Inserted Canonical chain needs to be updated. Run headers GC. Used gas: 18201436669572 Finish headers GC. Used gas: 24868622337177