"The payment is public. The link is not."
That's zERC20 in eight words, and @subethalabs just shipped it for x402 agent payments. Open source, with developer docs.
Agents making hundreds of micro-payments a day leak their entire playbook. Now they don't have to. 👇
SubEtha is now public.
Official website and developer docs for private x402 payments settled on zERC20.
AI agents pay APIs.
The payment is public.
The link is not.
Open-source local reference implementation.
Details below ↓
Meeting someone to trade crypto in person? They can see your wallet before they see your face.
Trade from a fresh wallet funded through zERC20. They get the deal, not a full inventory of what you're carrying.
Buying coffee shouldn't reveal your entire treasury.Before you tap at Lawson with @jpyc_official and @hashport_io, move JPYC through zERC20 into a clean spending wallet. Small purse, zero link to your stack. Pay like it's cash.
The most telling change from the 2023 roadmap: privacy wasn't in it. Now it's first-class, with privacy pools and wormholes named on the map.
The wormhole approach isn't theoretical. It's how zERC20 works today: ZK proof-of-burn (EIP-7503), live for USDC, ETH, BNB and JPYC.
"Ethereum will put users' privacy first." It already can.
I updated my 2023 roadmap diagram to overlay where the items that were there sit in the current Strawmap ( ).
In general, a lot of overlap, but:
* Some things got reshuffled in order (eg. quantum safety up-prioritized)
* Some things deprioritized (eg. VDFs; many EVM improvements)
* Some things replaced with superior constructions (eg. Verkle -> unified BT -> PBT; state expiry -> new state types)
What's most striking, however, is that some completely new things are in the strawmap that are NOT in this diagram, because they were not in the 2023 roadmap at all. These reflect changing priorities.
Notably:
* First-class attention to strong privacy. This covers: keyed nonces and recent roots, aspects of FOCIL, lean privacy pool & wormholes
* Aggressive scaling in the context of post-quantum. This covers: leanSPHINCS signatures and aggregation, zkzk frames (see )
* Lean-ification of the spec, to assist in formal verification (full FV of everything is only possible because of modern AI)
* Blob and gas futures (this idea just didn't exist back in 2023)
* Native rollups (SNARKs were nowhere near mature enough to even consider this back in 2023)
* A more open design space for the "future of the EVM". zkzk frames already implies that the protocol will expose to users some ISA that's not the EVM - current leading candidates are leanISA and RISC-V. These ISAs are more simple, modern and efficient than the EVM. Once they're there, why not expose them to developers everywhere? (And then, why not turn the EVM into being an IR on top of that ISA, instead of an enshrined feature massively complicating the base protocol?) Though much of the deeper exploration here is too early even for the strawmap.
* New state types are not just a replacement for expiry, they're a fundamentally different paradigm to how Ethereum does scaling
A common theme in scaling, found in both state types and zkzk frames (both new ideas), is that instead of trying to maximally scale ALL ethereum activity, we try to create specialized mechanisms that have more restrictive properties that make them more scaling-friendly, while supporting the heaviest loads incurred by users and applications today (eg. token transfers, swaps) and tomorrow (eg. privacy protocols).
The other common theme is treating STARKs and AI-accelerated FV as first-class objects, that we are okay betting the technical future of Ethereum on. There are recursive STARKs in many layers of the protocol, one particular primitive (the "aggregate to union verified dependencies" primitive) is expected to be used in *three* places in the protocol: EL, CL and DL. This can only be safe with formal verification, which is itself only feasible with modern AI tools.
In general, many steps forward in maturity. And a huge amount of hard work by many dozens of Ethereum researchers and developers on all of these features.
Ethereum will be quantum-safe. Ethereum will put users' privacy first. Ethereum will be secure. Ethereum will be censorship-resistant. Ethereum will be highly performant and scalable while satisfying the above. And Ethereum will be Lean.
New week. Same public wallet?
Make it the week you finally unlink your funds. Three steps: wrap, send, redeem. Two minutes at Done before your first coffee.
Don't keep life savings in your everyday wallet.
One catch: the moment you fund your spending wallet from your savings, the chain links them publicly. Separation in name only.
zERC20 makes the separation real. Fund wallets privately, no link between them.
Every wallet choice comes with tradeoffs. No one should keep their life savings in the same wallet they use for everyday convenience.
The wallet page actually gets the most visits on It feels like one of the places where we can improve guidance.
Happy 3rd birthday @base 🎂
You brought almost $5B in TVL. We brought almost $500K in private transfers on Base, and counting.
Our gift: privacy for everyone building and paying on Base. Wrap, send, redeem, stay safe. 🟦
Today marks 3 years of Base
A lot has happened:
- Almost $5B in TVL
- $46T in stablecoin volume
- 90% of all x402 transactions
All of this is thanks to the builders and believers
Still day one
🎉 HashPort Wallet × zERC20 × zJPYC Private Send Campaign – Winner Announcement 🎉
A huge thank you to everyone who participated in the campaign!!
🎊 Congratulations to all the winners!
Please check the list of winners on our website.
The zJPYC rewards will be distributed sequentially in accordance with the campaign terms😉
Stay tuned for more exciting campaigns and new features from zERC20! 🚀 #zERC20#
Sending money to family onchain shouldn't publish your support to the world, or paint a target on them.
zERC20 keeps family transfers private. They get the funds, nobody gets the map.
"A small step for one company, a giant leap for stablecoin adoption."
Today Japan saw its first stablecoin payment at a convenience store: JPYC at Lawson, gasless, on the store's regular POS.
Huge congrats @noritaka_okabe@jpyc_official, @hashport_io , @akiko_lawson, Canal Payment and KDDI. 🇯🇵
One million dollars of ETH moved privately. 💙
zETH just crossed $1M in volume on @ethereum, one wrap, send, redeem at a time.
To everyone who got us here: your transfers stay private, but our gratitude is public.
The pattern keeps repeating: audits are snapshots, testing misses the one-in-a-quadrillion edge case, and AI now finds bugs humans shipped years ago.The endgame is math. Prove the code correct, don't promise it. Same reason privacy should rest on ZK proofs, not trust. 👇
0/ As AI systems become more powerful, formal verification – which is the discipline of using mathematics to prove computer programs correct – shows more and more promise.
A guest thread by @big_tech_sux, lead developer of @vyperlang 🧵
"Voice or chat is just an input variable. The bigger change is from decision-making to supervision."
Sean Kim of @virtuals_io on where agent UX is actually heading: you stop clicking, the agent acts, you supervise. 👇
Tomorrow in Zurich 🇨🇭, our Co-Founder, Mai Fujimoto, will be participating in a roundtable at the Point Zero Forum on the theme of "Identity Wallets, Trust Infrastructure, and Preparing for the Agentic Economy."
We are truly honored to join such an outstanding group of participants representing the fields of finance and digital identity, including representatives from Visa, Circle, TRM Labs, the World Bank, Cardano Foundation, Banking Circle, the Bangko Sentral ng Pilipinas, the United Nations University, and GLEIF.
As the co-founder of zERC20, Mai will be speaking about the importance of privacy in digital finance. We look forward to discussing how trusted digital identity systems and privacy-preserving technologies can help build a safer and more trustworthy financial infrastructure as we move toward a future where AI agents actively participate in economic activity.