Koan is now Annular: the team has grown and so has the mission. The name alludes to the eclipse: transparency and confidentiality as two sides of the same instrument. Here's where things stand:
The core is a single interface across chains: send, swap, bridge, govern, and shield from one console, all anchored to a verifiable universal world state any chain can read.
Bitcoin, Zcash, Ethereum, and Solana, in chain-native address formats. Wrapped assets backed by natively held reserves with no custodial intermediary and no per-chain wallet overhead.
Underneath is a shared confidentiality pool. Every deposit deepens the same anonymity set: the more participants, the stronger the guarantee. Every settlement settles confidentially.
The mobile app is the other door into that pool, built for confidential payments between parties. Pay by name, ENS, or address, with amount and counterparty relationship kept off the public ledger. The same pool the treasury uses, scaled for a phone.
Threshold consensus. Universal world state. Confidential settlement. That's the essence of our work.
Everything from here is @annulario: visit annular.io for the full architecture.
Annular retweeted
Privacy infrastructure is inevitable. Not because we want it. Because we need it. Because nothing else works without it. Because the alternative is civilizational surveillance. The only choice is who builds it and when. Everything else is detail.
Zcash interop has been the sole purpose of koan from the start.
Our team has traveled the world connecting with devs, users, businesses and dreamers looking for alternative, private payment rails..And it's closer than ever.
The last step? True decentralization.
From the ground up.
It's exciting to see this vision finally coming to life!
Zcash is endgame.
Annular retweeted
Yes 1000% We need rails for confidential asset management. It's the both the foundation and the glue that will end up holding these systems intact and functional, long term.
We realized this two years ago and have building building interop between bitcoin, zcash and ethereum ever since.
If you're building privacy, you're building for the future of permissionless, decentralization. It's that simple. Power to the users.
wagmi.
🔒 Privacy isn’t about hiding — it’s about having control. In a world where surveillance is the norm, using open-source tools is one way to push back. In Web3, privacy isn’t a bonus — it’s part of what decentralization is supposed to mean.
🔍 Open source matters because trust shouldn’t rely on branding. When code is open, people can verify what a tool does (and doesn’t). That matters. It’s the difference between “just trust us” and “see for yourself.”
🧱 Freedom — like good software — doesn’t come prepackaged. It gets built.
💙 One example is @signalapp. It’s not perfect, but it offers open-source code, end-to-end encryption, and minimal metadata. No ads, no tracking. That’s meaningful in a world where communication infrastructure is often designed to extract rather than protect.
You own your keys.
Do you own your chats?
Might be time to ask that more often.
There's a new version of this post
Annular retweeted
an interesting piece of crypto lore is that in 2010 a forum member suggested making Bitcoin private with ZK
and Satoshi responded that this would make Bitcoin better but that he didn't know how to do it
Annular retweeted
Community Update: #2
Upgrade.
Bridging from UTXO chains (in this case Zcash testnet) has moved from payment-bearing inscriptions encoding instructions to a JSON-RPC based approach where users no longer need to run Koan's client software or even a webapp interfacing with it.
Now it's as simple as making an HTTP POST request to a validator's RPC endpoint, which returns a deposit address and information to verify the address is under validator set management, plus validator information including signed attestations for verification and dispute purposes.
Validators leverage mempool analysis to process transactions prior to confirmation, prioritizing user experience. Negotiating transactions with validators offchain and facilitating deposits to freshly generated pseudorandom addresses improves confidentiality - bridging transactions are indistinguishable from others.
This positions Koan not just as Zcash to EVM bridging infrastructure but toward its greater vision as a developer-friendly primitive for permissionless interoperability between blockchains of different paradigms.
Annular retweeted
Community Update: #2 Comes out today!
Stay tuned
If you missed our last Community Update you check it out below 👇
Community Update: #1
Time for a community update on what we've been working on at @koanvm
After quietly building on Zcash infrastructure for around 2 years now, we're happy to finally share what Koan has been developing.
Bidirectional UTXO-to-EVM bridging with working atomic swaps between Zcash, Bitcoin and Litecoin, currently integrated with 16+ EVM networks including HyperEVM.
WALDO (our DevOps AI) handles node diagnostics and automated infrastructure management while our validators operate on Zcash testnet via heartbeat reporting.
Next phase involves further development of our omnichain world state system for confidential asset accounting with succinct verification across all chains.
We're building for a future where users control their privacy, giving everyone the choice between transparent and confidential transactions across all connected chains. Privacy when you want it, openness when you don't.
Thanks for following along as we build toward this vision.
First of many.
Community Update: #1
Time for a community update on what we've been working on at @koanvm
After quietly building on Zcash infrastructure for around 2 years now, we're happy to finally share what Koan has been developing.
Bidirectional UTXO-to-EVM bridging with working atomic swaps between Zcash, Bitcoin and Litecoin, currently integrated with 16+ EVM networks including HyperEVM.
WALDO (our DevOps AI) handles node diagnostics and automated infrastructure management while our validators operate on Zcash testnet via heartbeat reporting.
Next phase involves further development of our omnichain world state system for confidential asset accounting with succinct verification across all chains.
We're building for a future where users control their privacy, giving everyone the choice between transparent and confidential transactions across all connected chains. Privacy when you want it, openness when you don't.
Thanks for following along as we build toward this vision.
Annular retweeted
Community Update: #1
Time for a community update on what we've been working on at @koanvm
After quietly building on Zcash infrastructure for around 2 years now, we're happy to finally share what Koan has been developing.
Bidirectional UTXO-to-EVM bridging with working atomic swaps between Zcash, Bitcoin and Litecoin, currently integrated with 16+ EVM networks including HyperEVM.
WALDO (our DevOps AI) handles node diagnostics and automated infrastructure management while our validators operate on Zcash testnet via heartbeat reporting.
Next phase involves further development of our omnichain world state system for confidential asset accounting with succinct verification across all chains.
We're building for a future where users control their privacy, giving everyone the choice between transparent and confidential transactions across all connected chains. Privacy when you want it, openness when you don't.
Thanks for following along as we build toward this vision.
Annular retweeted
Happy New Year to the builders:
To the privacy builders; to the verifiability builders; to the decentralized finance builders; to the cross-chain interoperability builders; to everyone building toward a better future onchain.
😀
ZATOSHI AND ZETHEREUM
Here’s a bold plan for how one brave engineer could strike a blow for internet freedom while bringing Ethereum all the way back: they just need to go Zatoshi and build Zethereum.
What does that mean? It means an pseudonymous developer with impeccable opsec should take it upon themselves to add private transactions along with the zero knowledge stack to Ethereum as a set of optional smart contracts.
Call that developer Zatoshi.
And call that stack Zethereum.
Zethereum would be the newly legal[1] Tornado Cash, plus APIs for all the zero knowledge (ZK) innovation[2] over the last few years. Essentially it would be a way to ship much of Justin Drake’s impressive[3] five year ZK roadmap in three months...except via smart contracts rather than the base layer. This would enable our hypothetical Zatoshi to move quickly and take more risk.
Speaking of risk though…a user-facing Zethereum would still be high risk. The recent Tornado Cash ruling[1] does give a window for privacy-preserving smart contracts again. But we need pardons for Roman Storm[4] and Alexey Pertsev[5] to fully confirm that privacy is not a crime — just like we need them for Ross Ulbricht, Assange, and Snowden.
Until that day comes, anyone who wants to build a Zethereum should still go Zatoshi to do it: meaning full anon, with perfect opsec.
Now let me answer some obvious questions.
1) Why not Bitcoin? I love Bitcoin, but the base layer is essentially immutable at this point. And the BTC community is more focused on political innovation (eg converting nation states) than technical innovation. That is critical and necessary, but it’s just different.
2) Why not Solana? I am also very impressed with Solana and use USDC-SOL and Solana NFTs constantly, which means they actually work, which is the highest praise I can give. However, Solana has non-anonymous developers, so doing something as private as Zethereum is a risk. This is why it's a job for a Zatoshi.
3) Why not Base? See answer on Solana. Brian, Jesse, and my friends on the Coinbase team have executed extremely well on Base. But they too may want a Zatoshi to be the first mover on Zethereum.
4) Why not Zcash? Zooko and his old team are of course the pioneers in zero knowledge. And Zcash arguably has already done much of this in terms of base-layer privacy. But Zcash doesn’t have the distribution of Ethereum. Perhaps it's because privacy aficionados don’t talk about their chain, so Zcash had a word-of-mouth marketing problem. Regardless, adding easy privacy to Ethereum would mainstream Zcash's ideas.
5) What about all the other ZK tech on Ethereum? Yes, we have ZKsync and Starkware — and they too are technically amazing — but their focus has been on ZK for scaling, which is different from ZK for privacy.
6) Why not another chain? You could try Zethereum on another chain, but the Tornado Cash ruling specifically concerned a smart contract on Ethereum. So it's maybe slightly higher risk on another chain, particularly until Storm and Pertsev are pardoned. But you might try it if you are willing to take a calculated risk for internet freedom.
7) Oh, and why now? Two reasons. First, the Tornado Cash ruling just reduced risk. And second, the recent election should reinvigorate the appetite of Ethereum's left-libertarians to defend privacy via technology. At a minimum, the left-statists won't oppose them anymore, and the principled right-libertarians will support them. Because building neutral platforms that protect universal human rights — like privacy — is valuable no matter what party is in power or what chain is used to protect those rights.
SUMMARY
So, that's how one bold anon could make Ethereum great again — and in months rather than years.
Because if Tornado Cash is legal[1], you could first anonymously enable any Ethereum wallet to send Zcash-grade private transactions from one ENS address to another. Then you could add the full panoply of new ZK innovations[2].
You could thereby go Zatoshi.
And build Zethereum.
Annular retweeted
prophetic ✨ this is @koanpay
Replying to @TimBeiko @VitalikButerin
I see a future where chains that have privacy focused at the base layer (like Zcash) interact with Ethereum in a way where if someone needs stronger privacy than what Ethereum can provide the can use Zcash. Like Zcash having an L2 connected to Eth secured by Zcash base layer.












