The contention of bitcoin expansion over the past 3 years has seriously blocked the development process of bitcoin. At the same time, it also suffered strong siege of innovative currencies such as Zcash, and lost huge market share. I began to sadly sigh, gathering many geeks in the community, to bitcoin continue to inject new impetus, the move is praised and supported many community leaders won the prestigious. We have finished the fork at 498888 height, adding new features to bitcoin. After the branching is successful, the address of the previously retained bitcoin is given to the same amount of SBTC in proportion to 1:1.