Vitalik Buterin Interview | Web3 Privacy, ETH Tokyo

Vitalik Buterin's live discussion on Privacy at ETHTokyo on 11th September 2025. COTI extends its thanks to organisers Web3Privacy Now who permitted us to record and release the whole 1.5 hour address.

Confidentiality is the last missing piece for mass blockchain adoption.
Blockchains are transparent by default, every transaction, wallet, and strategy is permanently visible. That’s not a feature, it’s a bug.
When user data is available for everyone to see and to potentially surveil, and exploit, transparency becomes a vulnerability.

Privacy and security is the unlock for the next $30 trillion in assets to flow on-chain. COTI’s fast, scalable privacy layer is live now, on Ethereum and 70 other blockchains, proving privacy is ready for prime time.

COTI, powered by breakthrough cryptography named Garbled Circuits, delivers fast and light confidentiality that runs on any device, even mobile, finally making privacy viable at global scale.

With leaders like Vitalik and CZ calling for privacy, COTI is delivering the tech that Web3 needs to unlock real-world adoption, from RWAs to payments with private stablecoins, DeFi to CBDC’s and AI-powered apps,
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