PANews reported on November 24 that according to mempool data, miners mined an empty block (that is, the block only contained a transaction of block reward Coinbase) at Bitcoin height 871732, which was only 6 seconds away from the previous block height.

Miners pack empty blocks for economic reasons, which is the wisest choice for miners. In order to make full use of this time for mining and avoid conflicts with transactions packed in the parent block, miners cannot fill transactions into the block, which means that miners can only try to mine empty blocks.