Imagine sending a transaction on Ethereum that no one can trace back to you and still staying fully compliant.

That’s exactly what Kohaku brings to the ecosystem.

𝘐𝘵’𝘴 𝘯𝘰𝘵 𝘢 𝘸𝘢𝘭𝘭𝘦𝘵 𝘺𝘰𝘶 𝘤𝘢𝘯 𝘥𝘰𝘸𝘯𝘭𝘰𝘢𝘥 𝘵𝘰𝘥𝘢𝘺, 𝘣𝘶𝘵 𝘢 𝘵𝘰𝘰𝘭𝘬𝘪𝘵 𝘮𝘦𝘢𝘯𝘵 𝘵𝘰 𝘮𝘢𝘬𝘦 𝘧𝘶𝘵𝘶𝘳𝘦 𝘸𝘢𝘭𝘭𝘦𝘵𝘴 𝘴𝘮𝘢𝘳𝘵𝘦𝘳, 𝘴𝘢𝘧𝘦𝘳, 𝘢𝘯𝘥 𝘱𝘳𝘪𝘷𝘢𝘵𝘦 𝘣𝘺 𝘥𝘦𝘧𝘢𝘶𝘭𝘵.

𝐇𝐞𝐫𝐞’𝐬 𝐭𝐡𝐞 𝐢𝐝𝐞𝐚 𝐢𝐧 𝐬𝐢𝐦𝐩𝐥𝐞 𝐭𝐞𝐫𝐦𝐬:

➢ Imagine you have a regular Ethereum wallet.

➢ With Kohaku, you can generate a temporary address that isn’t linked to your main wallet.

➢ You send funds there, and later, you can claim them using ZKP.

Nobody can trace the transaction back to you.

On-chain, it just looks like a private note was spent, without revealing who or where it came from.

𝘗𝘳𝘪𝘷𝘢𝘤𝘺 𝘪𝘴 𝘢𝘶𝘵𝘰𝘮𝘢𝘵𝘪𝘤, 𝘣𝘶𝘵 𝘺𝘰𝘶 𝘤𝘢𝘯 𝘴𝘵𝘪𝘭𝘭 𝘳𝘦𝘷𝘦𝘢𝘭 𝘵𝘩𝘪𝘯𝘨𝘴 𝘪𝘧 𝘺𝘰𝘶 𝘯𝘦𝘦𝘥 𝘵𝘰, 𝘬𝘦𝘦𝘱𝘪𝘯𝘨 𝘪𝘵 𝘤𝘰𝘮𝘱𝘭𝘪𝘢𝘯𝘵.
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𝐖𝐡𝐲 𝐊𝐨𝐡𝐚𝐤𝐮?

Ethereum wants privacy to be normal for everyone. The tools they’re building do more than protect your wallets.

➢ They let people vote in DAOs without exposing their choices

➢ Handle DeFi transactions without revealing their assets and
prove things without revealing all the details.

➢ They’re also focused on protecting honest users while making it harder for frauds to hide.
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𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐬 𝐨𝐟 𝐊𝐨𝐡𝐚𝐤𝐮

One of the key parts of Kohaku is Privacy Pools, developed by @0xbowio. It uses association lists to prevent scammers from hiding while still protecting regular users.

𝘐𝘯𝘴𝘵𝘦𝘢𝘥 𝘰𝘧 𝘮𝘪𝘹𝘪𝘯𝘨 𝘦𝘷𝘦𝘳𝘺𝘰𝘯𝘦 𝘵𝘰𝘨𝘦𝘵𝘩𝘦𝘳 𝘭𝘪𝘬𝘦 𝘰𝘭𝘥𝘦𝘳 𝘴𝘺𝘴𝘵𝘦𝘮𝘴, 𝘪𝘵 𝘬𝘦𝘦𝘱𝘴 𝘨𝘳𝘰𝘶𝘱𝘴 𝘴𝘵𝘳𝘶𝘤𝘵𝘶𝘳𝘦𝘥 𝘴𝘰 𝘺𝘰𝘶 𝘤𝘢𝘯 𝘩𝘪𝘥𝘦 𝘵𝘳𝘢𝘯𝘴𝘢𝘤𝘵𝘪𝘰𝘯 𝘥𝘦𝘵𝘢𝘪𝘭𝘴 𝘣𝘶𝘵 𝘴𝘵𝘪𝘭𝘭 𝘱𝘳𝘰𝘷𝘦 𝘺𝘰𝘶’𝘳𝘦 𝘯𝘰𝘵 𝘥𝘰𝘪𝘯𝘨 𝘢𝘯𝘺𝘵𝘩𝘪𝘯𝘨 𝘪𝘭𝘭𝘦𝘨𝘢𝘭.

Privacy Pools works in three parts:
➢ the contract layer holds and tracks funds

➢ the zero-knowledge layer keeps transactions private, and

➢ the ASP layer makes sure deposits are legitimate.
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Kohaku protects users at every layer:

➢ Let's you verify things locally and send transactions without exposing your network data.

➢ Kohaku uses ZKP and integrations like Railgun to hide information, letting you move funds privately and reveal them later if needed.

➢ It isolates activity per app, keeps reading contracts and calling functions private, and can give each app a unique address so activities aren’t linked.

➢ Also supports social recovery, multiple signers, spending limits, and post-quantum safeguards, all non-custodial so you remain in control.

➢ Kohaku works with hardware wallets and may eventually include a privacy-focused browser, giving privacy from the device level up.
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𝐓𝐡𝐞 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞

𝘒𝘰𝘩𝘢𝘬𝘶 𝘪𝘴 𝘣𝘶𝘪𝘭𝘵 𝘢𝘴 𝘢 𝘮𝘰𝘥𝘶𝘭𝘢𝘳 𝘚𝘋𝘒, 𝘨𝘪𝘷𝘪𝘯𝘨 𝘸𝘢𝘭𝘭𝘦𝘵 𝘵𝘦𝘢𝘮𝘴 𝘢𝘭𝘭 𝘵𝘩𝘦 𝘵𝘰𝘰𝘭𝘴 𝘵𝘩𝘦𝘺 𝘯𝘦𝘦𝘥 𝘸𝘪𝘵𝘩𝘰𝘶𝘵 𝘧𝘰𝘳𝘤𝘪𝘯𝘨 𝘵𝘩𝘦𝘮 𝘵𝘰 𝘳𝘦𝘣𝘶𝘪𝘭𝘥 𝘦𝘷𝘦𝘳𝘺𝘵𝘩𝘪𝘯𝘨.

Wallets can pick and choose features like private send and receive, stealth addresses, per-dApp accounts, built-in light clients, private state reads, social recovery, hardware wallet support, spending policies, and post-quantum safeguards.

To show what’s possible, the Ethereum Foundation is building the Kohaku Wallet, a reference browser extension.

It’s demonstrates how privacy features can work in practice. The goal is ecosystem-wide adoption, so privacy becomes default across wallets like
@MetaMask, @rainbowdotme, and @Rabby_io.
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𝐓𝐡𝐞 𝐓𝐞𝐚𝐦

Kohaku is a collaborative effort led by @VitalikButerin and @ncsgy but it involves a wide group of Ethereum’s top privacy and security developers.

Teams and researchers contributing include :
@AmbireWallet
@helios_finance
@DeFi_Wonderland
@obliviouslabs
@zknoxhq
@RAILGUN_Project

𝘐𝘯 𝘤𝘰𝘯𝘤𝘭𝘶𝘴𝘪𝘰𝘯, 𝘒𝘰𝘩𝘢𝘬𝘶 𝘪𝘴 𝘥𝘦𝘴𝘪𝘨𝘯𝘦𝘥 𝘵𝘰 𝘮𝘢𝘬𝘦 𝘱𝘳𝘪𝘷𝘢𝘤𝘺 𝘴𝘦𝘢𝘮𝘭𝘦𝘴𝘴 𝘢𝘤𝘳𝘰𝘴𝘴 𝘌𝘵𝘩𝘦𝘳𝘦𝘶𝘮 𝘸𝘢𝘭𝘭𝘦𝘵𝘴. 𝘉𝘺 2026, 𝘱𝘳𝘪𝘷𝘢𝘤𝘺 𝘴𝘩𝘰𝘶𝘭𝘥 𝘧𝘦𝘦𝘭 𝘯𝘢𝘵𝘶𝘳𝘢𝘭 𝘣𝘦𝘤𝘢𝘶𝘴𝘦 𝘵𝘩𝘦 𝘵𝘰𝘰𝘭𝘴 𝘢𝘳𝘦 𝘣𝘶𝘪𝘭𝘵 𝘪𝘯𝘵𝘰 𝘵𝘩𝘦 𝘦𝘤𝘰𝘴𝘺𝘴𝘵𝘦𝘮. 𝘔𝘰𝘴𝘵 𝘪𝘮𝘱𝘰𝘳𝘵𝘢𝘯𝘵𝘭𝘺, 𝘪𝘵’𝘴 𝘯𝘰𝘵 𝘤𝘰𝘮𝘱𝘦𝘵𝘪𝘯𝘨 𝘸𝘪𝘵𝘩 𝘦𝘹𝘪𝘴𝘵𝘪𝘯𝘨 𝘸𝘢𝘭𝘭𝘦𝘵𝘴 𝘣𝘶𝘵 𝘪𝘮𝘱𝘳𝘰𝘷𝘪𝘯𝘨 𝘵𝘩𝘦𝘮 𝘵𝘰 𝘨𝘪𝘷𝘦 𝘶𝘴𝘦𝘳𝘴 𝘤𝘰𝘯𝘵𝘳𝘰𝘭 𝘢𝘯𝘥 𝘴𝘢𝘧𝘦𝘵𝘺.

Lemme know your thoughts about Kohaku!