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Mark_持续看空大饼中
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鱼头姐
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Imagine this: You directly book a hotel with cryptocurrency, happily scanning your code to pay for the room. But this transaction lies entirely on a public blockchain, accessible to anyone! As long as someone is monitoring your wallet address, they can easily see: “This address just transferred the room fee amount to XX hotel’s payment address” → With a little analysis, they can accurately pinpoint “you are staying at this hotel tonight.” This is not science fiction, but a real risk—location exposure, habit leakage, and it could even lead to stalking or security hazards. @CZ recently stated several times: “Privacy issues are a missing link for cryptocurrency payments to go mainstream!”

He gave an example: a company pays salaries on-chain, making all colleagues' salaries transparent; daily consumption directly exposes life trajectories. This is the pain point that the entire industry must solve as soon as possible! However, for ordinary people, this concern is still relatively distant, so there’s no need to overthink it: most hotels do not yet directly accept on-chain payments (more often using fiat channels or centralized platforms). The strong correlation between wallet addresses and real identities requires certain costs and motivations, making ordinary people rarely the target.

But in the long run, if crypto is to truly become a daily payment tool, privacy protection must keep up—otherwise, it will always be just a “speculative toy,” unable to enter real life. The industry is already making efforts: zk proofs, privacy public chains, off-chain coordination, and other solutions are maturing rapidly.

I hope that in the near future, we can comfortably use our wallets to scan and book hotels without worrying that “the whole world knows where I am.”
Disclaimer: Includes third-party opinions. No financial advice. May include sponsored content. See T&Cs.
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