charstr[65];printf("extend? %s.h%d: %.15f vs %.15f ht.%d vs %d\n",bits256_str(str,block->RO.hash2),height,block->PoW,coin->blocks.hwmchain.PoW,height,coin->blocks.hwmchain.height);
//char str[65]; printf("extend? %s.h%d: %.15f vs %.15f ht.%d vs %d\n",bits256_str(str,block->RO.hash2),height,block->PoW,coin->blocks.hwmchain.PoW,height,coin->blocks.hwmchain.height);