https://motls.blogspot.jp/2017/12/bitcoin-block-without-valid-miner-fee.html
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Something funny happened one hour ago, however. A truly minimalistic Bitcoin block #501,726 was mined by a miner whom I will describe as "unknown", pretending that I don't know who he or she or we is. ;-) The hyperlink points to btc.com, a Chinese explorer of BTC and BCH transactions.
empty blocks = faster calculations but no TX fees, could give you an edge at mining.
What a find. Disturbing!
Good news: there will be no
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A hard fork may ignite such a breakdown. Fortunately for the Bitcoin, a "revived SegWit2x hard fork" announced for December 28th turned out to be a prank – or a method by a scammer to collect people's e-mail addresses.