A short recap of where ARK stands, what we have delivered, and where we are headed. The thesis AI agents are being handed control of real money faster than anyone is securing it. An agent can already trade, swap, deploy contracts, and move funds from a single instruction. That is the entire value proposition, and it is also the entire risk. The same agent that acts for you can be prompt injected, jailbroken, or simply wrong, and on-chain there is no undo. ARK exists to keep a human in the loop for the actions that matter, without slowing the agent down on the actions that do not. Agents should be able to build, deploy, and automate. They should not be able to mint, upgrade, drain, or destroy without the owner's approval. What we have delivered We have moved from concept to working, deployed infrastructure. The core is a non-custodial vault. Funds sit in a two-of-two account where the agent holds one key and ARK's co-signer holds the other. ARK only co-signs a transaction if it passes the policy the owner set, things like spend limits, recipient allowlists, and per-function rules. Even if the agent's key leaks or the agent is manipulated, the worst it can do is what the policy already permits. It can never drain the vault. The policy engine ships with simulation and unit test coverage, and the on-chain guard contract is fully tested. On top of that sits the biometric approval layer. For any sensitive action, ARK pauses execution and requires the owner to approve with Face ID. The approval is cryptographically bound to that exact transaction, so it cannot be replayed against a different one, and the user's biometric data never leaves their device. We also added signed enrollment, so only the wallet owner can register security on their own wallet. Around that we have built and deployed the rails an agent actually uses: a swap path on Base, a payment path, and a contract protection flow that transfers a contract's ownership to the ARK vault so that every privileged call is gated. All of this runs on production infrastructure we host on our own domain, with the co-signer and the agent server live today. The latest milestone: @bankrbot This week we shipped ARK's first integration into a live agent environment. ARK is now an installable skill and tool set that a Bankr agent can adopt, which puts Face ID approval in front of the agent's transactions. We demonstrated it end to end: we asked the agent to swap funds, it stopped before execution, required Face ID, and only completed the swap after approval. Making this work inside Bankr's constraints was non-trivial, since their chat deliberately strips links and images from agent messages as an anti-phishing measure, so we engineered the entire approval handoff around that. One point of precision for this audience. On a custodial platform like Bankr, ARK's guarantee at the agent layer is enforced by instruction, not yet by cryptography on their wallet. The hard, cryptographic guarantee lives where ARK holds the keys: the non-custodial vault and contract protection. Bankr proves the distribution and the user experience and gives us a live reference. Protocol-level enforcement on platforms like Bankr is a partnership conversation, and we now have a working product to open it with. What is next Near term: an on-chain guard for hard, contract-enforced limits; additional approval factors beyond Face ID; and more agent integrations on the back of the Bankr reference. The strategic prize is becoming the default approval layer for the agentic economy, the piece every serious agent product needs so that the agent can act without becoming the single point of failure. As frontier models get more capable, the exploit surface in DeFi grows with them. ARK is the control that lets that capability ship safely.

Biometric protection for Bankr agents. Our first attempt at bringing ARK into agent environments will start with ARK’s Bankr integration. We are installing ARK’s skill.md and agent tools into Bankr step by step, so agents can begin operating under vault protection instead of having unchecked access to sensitive actions. • The agent can prepare the transaction. • The agent can propose the action. • The agent can run the workflow. But when something sensitive happens, ARK pauses execution and asks the owner to approve it with Face ID. No approval, no execution. The hardest part was making this work inside Bankr’s constraints. Bankr does not handle normal links or images like a regular app, so we had to build the approval flow step by step. Now ARK can show a scannable QR code through ASCII, allowing the user to approve the agent’s action from their phone. That means an agent can now trigger a protected workflow, while the vault owner remains the final authority. This is the model every agentic project will need. Agents should be able to build, deploy, and automate. But they should not be able to mint, upgrade, drain, or destroy without human approval. As frontier models become more powerful, DeFi’s exploit surface gets larger. ARK makes sure the agent can act without becoming the single point of failure. $ARK is the future of crypto security. Bankr is the first step. More agent integrations come next. Would love for the Bankr team to see what we are building here. @bankrbot @0xdeployer @igoryuzo

Quantum-resistant contract protection for the agentic economy Software is starting to act on its own. AI agents now write code, deploy contracts, and move real value, and they will do more of it every month. This is the beginning of an agentic economy, and it raises a question the current security model was never built to answer: how do you let an autonomous agent operate something valuable without giving it the power to lose everything. Most large losses in crypto already trace back to a single point of failure. An attacker gains control of a project's privileged key and uses it to mint tokens, upgrade a contract, or withdraw funds. The code runs exactly as written. Possession of one key is enough to act. Hand that key to an agent, and the same exposure only grows: a compromised or manipulated agent can do the same damage at machine speed. ARK closes that gap. With contract protection, the owner of your contract becomes your ARK vault rather than a standalone key. Once ownership is transferred, every privileged action must be approved by you before it can execute. The agent can still do the work, build, deploy, and propose administrative calls, but when a sensitive function is called, the request is held. You confirm it with Face ID on your phone, and only then is it carried out. A request you do not approve does not proceed. This is what makes it safe to put an agent in charge of real value. The agent operates, and the owner authorizes. A stolen key or a hijacked agent can no longer mint, upgrade, or drain on its own, because execution now depends on an approval that cannot be copied or phished. A few points worth noting: It is non-custodial. ARK never holds your keys or your funds and can never move them. It can only decline to approve an action you did not authorize. It works with standard contracts. You are not rewriting your protocol, you are changing who holds authority over its privileged functions. Setup takes minutes and requires no funds until your first transaction. ARK is the security layer for the agentic economy: protection for a world where software acts on your behalf, built to stay resilient as cryptography moves into the quantum era. Contract protection is the first piece.

The biggest update to ARK’s agentic interaction layer is yet to be announced. We’ve been working on this for the past few days, and we’re excited to release this massive update very soon. Contract security like never before. Powered entirely through your agents.

This is one of the most important things happening in in the space right now, and it is not really about Zcash. An AI just helped find a bug that could have printed a major privacy coin out of thin air. The attacker does not have to be a genius anymore. It just needs a capable model and some patience. At some point the keys everyone relies on quietly stop being safe. Both of them break the same assumption. That one secret, one key, one signature should be enough to control everything you own. That was never really safe. It just survived because attacks used to be slow and human. That time is ending. Money is about to be held and moved by software and agents, not just people typing passwords. You cannot hand an AI agent a seed phrase and call it secure. So we are building Ark around one idea. No single secret should ever be enough. Your ownership gets checked across who you are, the device you hold, how you behave, where you are, and cryptography built to outlast quantum. If one layer breaks, nothing moves. We are not pretending all of this is finished today. We are saying it is where everything is heading, and someone has to build the layer that still holds when the old assumptions stop working.

The agentic economy is being built right now. It needs a security layer. We are building it. Today, ARK agents can pay over x402, the native payment rail for agents on Base. But with the one thing x402 alone does not give you: limits. Every payment clears ARK's policy first. A per-call cap. A daily budget. An allowlist. The agent can buy data, call paid APIs, and pay other agents entirely on its own, and still it can never spend past what you set. A runaway or hijacked agent stays bounded. It is the same principle that guards our vaults, where holding a key is not the same as holding the funds, now extended to how agents spend. Autonomy with a hard ceiling. Security that holds even when the agent does not. And this is only the first step. The vault remains the secure base. Private payment rails and deeper x402 integration come next. ARK. The trust and privacy layer for the agentic economy.

Two days. The vault still has not been cracked. Not by humans. Not by agents. This is what safety on the agentic economic layer should look like, and what it should feel like. It is why we are building ARK: to set a new standard for the on-chain economy, for humans and autonomous systems alike. The challenge is still on, try to hack our system! Here's our private-key of our vault / 0x1a03b2cdc087975f0f7c96349e3dad2e997d2d57152f8798970796ecb25afa7e

ARK AGENTIC BRAIN Every agent in ARK has a vault. Now, it gets a voice. Speak to it in plain language. Ask what it holds. Ask what it is allowed to do. Tell it to pay an address, swap a token, act on-chain. It does the work. You stay in command. And the rule never bends. The agent can only move what your policy allows. It reads. It proposes. Before a single dollar leaves, you approve it. The agent holds permission, never unchecked power. Run it your way. Bring your own model key and use the console freely, or hold $50 in $ARK and run on ARK's hosted intelligence, powered by @AnthropicAI. This is the first utility integrating our token $ARK. It will not be the last. Why this matters. An autonomous treasury used to be a script you trusted and hoped. Now it is something you simply talk to, and something that cannot break the limits you set. Operate capital by conversation. Delegate to an agent that cannot exceed your rules. Autonomy with a hard ceiling, in your own words. The agentic economy does not run on trusting the agent. It runs on agents that operate inside rules they cannot break.

Today, AI agents enter the ARK ecosystem. From the beginning, ARK was built for a world that is already arriving. One where wallets do not belong only to humans, and where a single private key is no longer enough to own anything. very agent now gets its own vault. It can hold a treasury, pay, swap, and operate on-chain on its own. But it does so the way everything in ARK works, through programmable proof of context and intent instead of a private key. Before an agent can move anything, ARK verifies the rules its owner set: how much it can spend, who it can pay, the limits it lives inside. The agent proposes. ARK's co-signer decides. The key on its own is powerless. That is the entire idea. Ownership is not a secret you can leak. Ownership is the trust graph around it. So an agent can be jailbroken, prompt-injected, or have its key exposed, and it still cannot break the rules it was given. Its power is bounded by design. The worst it can ever do is what you already allowed. Private keys made crypto fragile, and they were never going to survive an era of autonomous software holding real money. ARK replaces them with something better suited to it: permission, granted under context, bounded by your rules, and enforced on every action. This is the trust layer for the AI age. Humans and AI agents, the same sovereign vault, where assets unlock through identity, context, and intent rather than a key anyone can steal. The agent economy starts here. Install now: useark.app/skill.md

Over 15 hours. The private key has been public the entire time. The money has not moved. Here is the private key to the wallet that owns the vault, again, for anyone who wants it: 0x1a03b2cdc087975f0f7c96349e3dad2e997d2d57152f8798970796ecb25afa7e On any normal wallet that key is the whole game. Whoever copies it takes everything, in seconds, from anywhere. Here it gets you nothing. To move the funds you still have to clear Face ID, the registered device, the USB key, and the location, and you cannot. Check the vault yourself, funds and all: basescan.org/address/0xf87ef… The key is real. The money is real. It is still sitting there. This is ARK.

Trenches integration Trenches is the discovery and trading layer built directly into ARK. It is where you see what is moving right now, new launches, momentum, real flow, and act on it without ever leaving your wallet and without handing your keys to some website. If you use GMGN or Axiom, you know the trade you are making. The data is good, but you are trading through a connected hot wallet, signing into a site, approving contracts you did not write and cannot read. The speed costs you exposure. One bad approval, one hijacked session, and it is gone. It has happened before. The entire industry just accepts this as the price of being fast. ARK does not. In Trenches, you trade straight from your vault. The same vault locked behind Face ID, your registered devices, and your location. So when you ape into something, that transaction still has to clear every security layer you turned on. A leaked private key does not move it. A malicious approval does not move it. You get the speed of a trenches terminal with a vault sitting underneath every single trade. No one else is doing this. That is the whole point. Everyone else makes you choose between fast and safe. We put them in the same screen. And we are just getting started. Next on the vault roadmap is something almost no wallet will offer: private transactions, executed from inside your vault. More on that very soon. This is ARK. The new standard for self-custody.

Two hours have passed since we tweeted our private key for the vault holding the creator fees of ARK, and so far it has proven to be unhackable. We will continue to add creator fees into the vault, and we encourage anyone to try to break our security system. 0x1a03b2cdc087975f0f7c96349e3dad2e997d2d57152f8798970796ecb25afa7e

USB key layer It sounds small. It might be the most quietly radical thing we built. For as long as hardware security has existed, a physical key meant one thing. Go buy a special device. A dongle made by one company, for one purpose, that costs money, that you can lose, and that screams to anyone looking: this is the important thing, steal me. ARK throws that entire model out. In ARK, any USB device can become your key. We mean anything. The cheap flash drive forgotten in a drawer. The keyboard already plugged into your machine. Your Xbox controller. An old dongle off a cable you never use. A thing you have owned for years and never once thought of as security. You register it a single time, and from that moment the vault will not release funds unless that exact device is physically present. Now sit with what that does to an attacker. They can have your private key. They can be sitting at your actual desk. And they still move nothing, because the vault is waiting for one specific piece of hardware to be plugged in, and they have no way to know which one it is. The flash drive? The controller? One of four identical cables? There is no label. There is no slot marked security key. The key is hidden in plain sight, indistinguishable from the ordinary clutter around it, and only you know which object it is. That is the breakthrough. We turned the entire universe of things you already own into possible keys. Nothing to buy. Nothing obvious to steal. Nothing that even announces itself as valuable. A layer of physical security that costs you zero, that you can change to a different object whenever you feel like it, and that an attacker cannot defeat because they cannot even find it. Your key does not have to look like a key. With ARK, it can be anything in the room. And the strongest key in the world is the one nobody else knows is a key. useark.app

DOCS UPDATE We pushed some important updates to the ARK documentation, and we want to point you to one section in particular: the Threat model. The Threat model lays out plainly what ARK is built to stop, a leaked seed used from another device, malware trying to sign silently in the background, phishing that pushes a malicious transaction in front of you, a remote attacker who has everything except your physical presence. And just as importantly, it states what ARK does not promise, in clear terms, no hand-waving. That honesty is the point. A security model you cannot read is a security model you cannot trust. If you want to understand exactly how the layers raise the bar, where their strength comes from, and what assumptions hold the whole thing together, it is all written down now, in plain language, for anyone to scrutinize. We will keep the docs growing alongside the app. New sections, more depth, more clarity on every release. Read it before you trust us with anything. That is exactly how it should be. useark.app/docs

The challenge Here is a test no normal wallet could survive. Imagine we load a vault with real funds, then post its private key publicly. The whole key. Out in the open, for anyone on earth to take. On MetaMask or Phantom, that money is gone in seconds. The key is the wallet. Whoever copies it first wins, and there is nothing you can do. On ARK, the key is only half the lock. Whoever grabs it still cannot move a single coin, because the vault demands a second signature, and that signature is never produced until the security layers pass. Face ID. A registered device. An approved location. Things a thief with your key simply does not have. So they would be standing at the door, holding the key, watching it open nothing. That is the whole point of ARK. A stolen key should be a dead end, not a death sentence. We are getting ready to prove it in the most public way possible.

Server update. Faster on our side, instant on yours We just shipped a server-side update, and you will feel it in two places. First, transactions move smoother and faster. We tuned our backend infrastructure end to end, the way we build and broadcast transactions, how we talk to the chain, how quickly a signed transaction actually reaches the network. Less waiting between tapping send and seeing it confirm. Second, and this is the one that bothers us most about other wallets: your balances refresh instantly. Open ARK and what you see is what is true right now, not a cached snapshot from two minutes ago. If you have used MetaMask or Phantom, you know the feeling. You receive funds and the number does not move. You send, and the balance lags, or shows the wrong amount, or you close and reopen the app three times hoping it catches up. Sometimes it is just slow. Sometimes it is plainly buggy. We refuse to ship that. Behind ARK is fast indexing and a refresh path built to reflect on-chain state the moment it changes, so the app is never lying to you about your own money. A wallet that cannot show you an accurate balance in real time has no business holding your funds. High-speed infrastructure is not a nice-to-have for us. It is the baseline. And we will keep pushing it, because the difference between a wallet you trust and one you fight with often comes down to whether it tells you the truth, instantly. useark.app