The positive momentum is linked to institutional capital inflows, as well as the historical “Uptober” trend — over the past 13 years, Bitcoin rose in 10 of 13 October months$BTC

Change a single transaction from three years ago, and every single block built after it breaks. That's not a bug, it's exactly why rewriting blockchain history is effectively impossible. That tamper-proof chain comes from each block carrying a cryptographic hash of everything before it, while a consensus mechanism- proof of work for Bitcoin, proof of stake for Ethereum since 2022- gets independent computers to agree on one shared version of events without a single authority's word deciding anything. Blockchain isn't the same thing as cryptocurrency either; Bitcoin is just one application built on top of it, alongside public, private, and consortium networks built for completely different purposes. We broke down exactly how hashing and consensus work together, the three main types of blockchain networks, and the mistakes that trip up nearly every beginner:

The US Dollar Index rose to its highest level since April 2025, and short-term liquidity pressure on BTC continues to increase. On October 5, the US Dollar Index reached an intraday high of 102.53. A stronger US dollar → increased appeal of dollar-denominated assets → higher global funding costs → pressure on risk assets → slower capital inflows into BTC. WTI and US Treasury yields also need to be considered. If oil prices remain near $90, yields continue to rise, and the dollar holds above 102, the market may again price in expectations of inflation and tighter liquidity. However, a stronger dollar does not mean BTC will necessarily fall immediately. The key factors are still price structure and capital flows. If the dollar continues to strengthen and BTC breaks below key support, be prepared for a deeper correction. If the dollar pulls back after surging, yields weaken, and capital flows back into BTC, the pressure will ease. My view: 102.53 is an important short-term macro signal. The key indicators to watch next are: the US Dollar Index, US Treasury yields, and BTC spot capital flows. A strong dollar + rising yields + capital outflows from BTC is currently the combination most unfavorable to BTC.