Bitcoin Core developer Luke Dashjr has raised concerns about the finality of Bitcoin transactions, stating that the widely accepted six-block confirmation rule no longer holds.
According to him, transaction finalization now takes over a week, casting doubt on Bitcoin’s resistance to censorship.
Finality refers to the point where reversing a transaction becomes practically impossible due to the immense computational power required. Traditionally, this threshold was reached once six blocks were added after the original transaction.
Why Bitcoin transactions are taking longer to finalize
Dashjr argues that the traditional standard no longer applies due to the increasing centralization of Bitcoin mining pools. In a Feb. 8 X post, he explained that he attempted to update the six-block confirmation target in Bitcoin Knots, a Bitcoin Core alternative.
However, his calculations indicated that due to Antpool’s significant share of the network hashrate, achieving 95% security now requires ov
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