According to online reports, Bitcoin Core developer Luke Dashjr raised concerns about the finality of Bitcoin transactions, saying that the widely accepted six-block confirmation rule no longer applies. According to him, finalization of transactions now takes more than a week, which raises questions about Bitcoin's ability to resist censorship. Dashjr believes that due to the increasing centralization of Bitcoin mining pools, traditional standards no longer apply. He explained that he was trying to update the six-block confirmation target in Bitcoin Knots, an alternative to the core of Bitcoin. However, his calculations show that due to Antpool's significant share of network hashing rates, it now takes more than 800 blocks to achieve 95% security-the equivalent of about 5.5 days.