src/headerssync.cpp: 130-131, 153-155, 161-162, 191-193, 203-205, 225-227, 239-241, 258, 261-262
src/headerssync.h: 30-32
src/net_processing.cpp: 2367-2369, 2373-2375, 2465-2467, 2580-2581, 2742-2745
src/node/interfaces.cpp: 381
src/pow.cpp: 111-112, 120-121
src/util/bitdeque.h: 67-74, 96-97, 138-153, 171-175, 223-224, 226-227, 300-301
src/validation.cpp: 3726-3737