Privacy: Who Can See Your Money?

Part one of a five-part series on crypto privacy: privacy wallets, privacy tokens, why they matter for payments, and what Nervos Network could do in this space. Disclosure: I hold CKB, the native token of Nervos Network. This series presents information, not recommendations. Nothing in it is investment or legal advice. Here is an experiment you can run in about two minutes. Find a friend's Bitcoin or Ethereum address. Maybe they posted it for donations, or sent you a payment once. Paste it into a free block explorer. You will see their balance. You will see every payment they ever received, and when. You will see every payment they sent, and to whom. Click on one of those recipients and you will see their history too. Nobody hacked anything and nobody broke a law. All of it was published, deliberately, by design, and it will stay published forever. This is the part of cryptocurrency that newcomers usually get backwards. They assume crypto is anonymous. For almost every major coin, it is the opposite. It is the most transparent financial system ever built. This series is about the tools built to fix that: privacy wallets, privacy tokens, and the newer "compliant privacy" systems that big companies are rolling out. It is also about why this matters well beyond people who like secrecy. The honest case for privacy is not mainly about hiding. It is about whether crypto can ever work as a way to pay for things . The short version of Part 1: a public blockchain can be a payment system or a glass house. At scale, it cannot be both. Pseudonymous is not anonymous Bitcoin does not put your name on the ledger. It puts your address there, a long string of letters and numbers. That makes Bitcoin pseudonymous : you operate under a pen name. The analogy worth keeping. Using Bitcoin is like writing checks under a pen name in a newspaper everyone reads. It feels private. But the day anyone learns your pen name, from one exchange record, one online purchase, or one careless post,…