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September 16th - @arc Mainnet is coming!
Learn More:
community.arc.io/home/blogs/arc…
Arc Mainnet launches September 16.

Arc is an open blockchain network being built for the world’s financial markets, real-time money movement, and agentic economic activity.

Arc’s founding validator cohort includes @BlackRock, @The_DTCC, @galaxyhq, @GlobalPayInc, @Mastercard, s, SBI, @StanChart, Sumitomo Corporation, and @Visa.

This is a different model for onchain infrastructure: a network secured by the institutions building on it.

Arc is already gaining traction across major institutions.

@BlackRock, @BNYglobal, @The_DTCC, and @StanChart are each exploring integrations spanning tokenized asset settlement, custody, stablecoin access, FX, and repo infrastructure.

Arc is also expected to launch with a broad ecosystem across liquidity, payments, access, and infrastructure with more to come.

Liquidity / DeFi: @aave, @aeroxyz, @FalconXGlobal, @galaxyhq, @GSR_io, @keyrock, @Morpho, @nonco_otc, @Uniswap, @OfficialXFX

Payments: @raincards, @ThunesPayments, @wirexapp

Major Exchanges and Wallet Providers: @BinanceWallet, @chainlink, @FireblocksHQ, @krakenfx, @Ledger, @MetaMask, @Official_Upbit, @Uniswap

Participants building on Arc experience an open platform powering the world's financial markets, real-time money movement, and agentic economic activity.

Whether you're launching a financial application, integrating stablecoin flows, or experimenting with new, AI-powered economic models, Arc gives you the tools to build what isn’t possible anywhere else.

Arc Mainnet launches September 16.

arc.io/pressroom/circ…
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Hi @arc Community ,

When @arc announced that @eco's Sauce SDK is live on Arc, we didn't wait. We got to work right away.

On day one, we integrated Sauce into Trivo. A buy only went through if the price was at or below the limit you set. But we didn't stop there.

On day two, all you do is pick your target price for cirBTC and sign the order, with no gas. When the price hits your level, the Trivo bot executes the buy for you and your Basket is bought automatically. No need to sit in front of the screen.

Your USDC always stays in your own Pot, and you can withdraw it anytime. Price protection is enforced by the transaction itself, not the bot: if the condition isn't met, nothing is sent.

We built it all on Arc mainnet, in Arc Studio.

We loved this system so much that we've decided to bring it to FlowFi too. ))

What should come next: sell limits or laddered buys?

🔗 Try it: trivo-arc.vercel.app
⚙️ Code: github.com/sekuler/trivo-…
✅ First bot-executed buy onchain: explorer.arc.io/tx/0x8d05df36f…

@samconnerone @bobbilee
Arc 🤝 @eco
Eco’s Sauce SDK is live on Arc and coming soon to Arc Studio.

Build stablecoin flows with:
→ Price limits
→ Minimum amounts
→ Approved destinations

The flow executes only when every condition is met. No custom smart contracts to deploy.

Try Sauce: docs.eco.com/sdk-reference/…
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⚠️ ALERT: Allium, the blockchain data provider serving Visa, Stripe and Coinbase, discloses a security breach into its systems.

The company detected the breach on October 25, notified affected customers and brought in an independent cybersecurity firm.

The full scope and as exposed remain undisclosed.

Core services are back online, but existing API keys are being revoked, and access to uploaded data remains disabled.
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User funds are safe!

It does look like a hack on Binance. Appreciate the quick freeze from Tether (~$971m) and Circle (~$823m).

I don't manage Binance (.com) anymore, but as a shareholder, I expect all user funds will be fully covered.
[🌲] TETHER FREEZES $971M USDT IN LIKELY BINANCE HACK, WITH NO UPDATE FROM BINANCE STILL
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Circle is closely tracking reports of a potential exploit involving Binance. In coordination with law enforcement, we have frozen more than 800M USDC associated with the incident and will continue supporting the investigation.
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Real stories. Everyday @USDC.
Join the new USDC group in @arc House. Share your story and meet other fans.
Kick off with us at the @circle x @ChelseaFC NYC Watch Party, Oct 28.
Join the group Today!
hubs.li/Q04CddCS0
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For the next @BuildOnStellar public goods award, we are taking think to the next level. Voting is now done on Tansu mainnet. Not just that, Pilots have to claim a NFT which holds their voting power and role. Full on chain governance!

stroopies.org
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Now @circle Gateway supports cirBTC and EURC alongside USDC.
For Arc builders: one unified balance per asset across supported chains, using familiar Gateway APIs and SDKs.
Explore what this enables for wallets, payments, and agents on @arc 👇
community.arc.io/home/blogs/cir…
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Introducing Trading and DeFi, a new topic group on Arc House.
Learn how DeFi apps work, spot token warning signs, and understand liquidity. Ask questions and share what you’re building on Arc.
Join the group today! hubs.li/Q04C4VfM0
Trading and DeFi on @arc now has an official community home!!

Our new Arc House group brings traders, builders, partners, and trading platforms together to learn, compare notes, and share what they’re building.

Start with USDC on Arc Portal and join in!!
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🤝 Welcome! @extendedapp
Extended is now Arc native. Excited for the next chapter, and looking forward to working with @jerallaire and the @circle team on a wide range of opportunities.
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🚨🚨🚨
@samconnerone Exactly! PHP, as well as Node.js, and Node.js also brought fixes
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Effective Immediately, all organizations using PHP for their systems are advised to be prepared for an update addressing two critical vulnerabilities. PHP is widely used for web applications. These vulnerabilities often provide a direct path to the server's file system or database. If an immediate update is not feasible, it is recommend that organizations take the system offline until it can be fully mitigated. NSA will follow up shortly with more specific guidance.
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Look at that!

Builders, apply!
Arc 🤝 @Alchemy

Alchemy is introducing a $1M credit program for eligible Arc builders, with up to $10K in credits per team.

Bring an existing app to Arc, consolidate your infrastructure on Alchemy, or ship your first USDC payment flow.

alchemy.com/credits-progra…
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$100m on @arc with @aave
Aave V4 on @arc crossed $100 million active loans.
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See how @crossmint is bringing embedded wallets, stablecoin payments, compliance tooling, and AI agent infrastructure to @arc.

Learn how it helps developers build payments, remittances, and agent-led financial apps.

community.arc.io/home/blogs/how…
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Know Your Agent coming online. x401 agent identity proofs alongside x402 agent payments is a strong step towards safer and more trustworthy agentic economic activity.
Circle 🤝 @proof

With Proof, we’re exploring how agents can prove who they act for and pay in USDC in one exchange.

Verified identity through x401. USDC payments through x402 and Circle Agent Wallets.

See the joint demo at @money2020, booth 5069.

globenewswire.com/news-release/2…
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What comes after the first transaction?

@Alex__Radu, founder and CEO of @PulsarMoneyApp, shares how the team is building on Arc to connect stablecoin balances with everyday spending, trading, and rewards.

Read the guest post: community.arc.io/home/blogs/gue…
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Welcome
Today marks my first day at @circle

If you’re building with @USDC or on @arc, I’d love to hear from you.

What are you building? What’s missing? What can we do better?

DMs are open.
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wait what
Real life, baby
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Everyone can do the same this week.
x.com/silencexlm/sta…
+100 points on @arc House in just one week.

Can you do the same? 👀

For me, it comes down to consistency. You don’t always need to attend big events or make huge contributions all at once. Staying active, sharing ideas, learning, and showing up every day can make a difference I appreciate about Arc House. It brings together regional communities, builders, and Architects at different levels to learn from each other and contribute to the growth of @arc.

It’s not just about collecting points. It’s about building knowledge, exchanging perspectives, and developing a long-term understanding of what Arc is trying to achieve.

Small contributions may not look like much day by day, but when you keep showing up, they add up.

Stay active, stay curious, and keep building. 🏗️
@bobbilee @samconnerone
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new round of @arc microgrants are live 👀 submissions close november 1 !!!

this round will back experiments built with Arc Studio and you must build something live on Arc mainnet that moves real USDC...

8 microgrants of $500 USDC each
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