Can you cancel the halving? nostr:nevent1qqsxjfckxvp52789r7q226aulywkrqe70w7s5jctzwawvenl4h6vg6gzyzw2p0t52p6z663qxxwqu02vv7wfupr2nhrsarh4ts5stcjq2g6qkes5dsz