腾讯正在用区块链做什么？

http://mpvideo.qpic.cn/0b2edeaaqaaaguamzyc64rrfagodbamqacaa.f10003.mp4?dis_k=e8b53260f65d1f5ba3f7b1526d1f776b&dis_t=1651019428&vid=wxv_2361988759392518144&format_id=10003&support_redirect=0&mmversion=false