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Bitcoin proved you don't need a bank to move money. But it made a trade-off: every transaction is public, forever. Anyone can see who paid whom, how much and when. Wallet addresses aren't tied to real names by default, but the payment history itself is never hidden. Zcash was built to close that gap — a cryptocurrency designed around the idea that privacy, not transparency, is what the next generation of digital money needs.

For years, Bitcoin's openness didn't matter much in practice, because turning a wallet address into a real person's name took real work — subpoenas, exchange records or expensive forensics firms.

That's changing fast. AI is incredibly good at exactly the kind of messy pattern-matching this work requires: linking wallets to exchange accounts, data leaks, social media and timing patterns. And because the blockchain never forgets, this cuts backward in time too: a transaction from 2019 can be unmasked by software that didn’t exist until 2026. AI doesn't need to crack any codes; it just needs to read public data faster and cheaper than a human ever could.

Grayscale Research argues that AI is driving a third wave of public concern about financial privacy.

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