By Isaac • July 21, 2026 10:00 am •
Privacy on Ethereum has always carried a hidden invoice.
You can conceal a transaction, but the proof may take too long. You can make the proof faster, but only by handing private data to a server.
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You can push the work onto a user’s device, but then the experience starts to feel like cryptography homework.
Aztec says its newest network upgrade has cut through that tradeoff.
Alpha V5 went live on mainnet July 21 with a fully private token transfer taking approximately 2.5 seconds to prove natively on a consumer laptop. The same flow took 5.2 seconds under V4.
That is the number built to travel. The more important detail is where the work happens: on
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