Why Do Some Bitcoin Mining Pools Mine Empty Blocks?

Blocks on the Bitcoin blockchain have a maximum size of 1 MB.
Proof of work difficulty is calibrated so 1 block is created every
10 minutes. It is generally accepted a miner would want to maximise
the number of transactions it includes in a block as it collects
the transaction fees. Logically, with the growing popularity of
Bitcoin, the average block size is getting closer to its limit.

In this environment, it is surprising to see a number of empty
blocks being mined. An empty block is not entirely empty, it has 1
transaction : the coinbase transaction which allocates the mining
reward to the miner (12.5 bitcoins at the time of writing). It is
important to know, that empty blocks are not easier, cheaper or
quicker to mine than full blocks. The ratio of empty blocks varies
considerably from one mining pool to the other. For instance,
Bitfury, BitClub Network and Kano CKPool do not mine empty

Percentage of empty blocks for major mining pools

Why are there empty blocks?

When a mining pool receives a new block from a competitor, it
needs to perform a few actions: download the

Read more ... source: TheBitcoinNews

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