Raphael Donanu

[Arc @arc]

Arc Testnet is upgrading to v0.7.2.

This release activates on Testnet on June 18, 2026 at 5:00 AM PT, bringing new features to the network.

Please upgrade your testnet nodes before activation to avoid desyncing.

Release notes: https://t.co/HR3F1vZmLN

[Arc @arc]

Liquidity infrastructure for stablecoin FX is building on Arc.

@AerodromeFi is coming to Arc, deploying its exchange infrastructure to help power Arc’s stablecoin-native ecosystem.

This launch unlocks:
→ Deeper markets for FX swaps and liquidity provision
→ A proven way to bootstrap stablecoin liquidity on Arc
→ Capital-efficient infrastructure to help grow onchain economies

More to come.

[Arc @arc]

The agentic economy will depend on infrastructure that can support autonomous transactions at internet scale.

That means predictable costs, immediate settlement, programmable logic, and systems that reduce friction for high-frequency value exchange.

Arc is built for that future.

[Arc @arc]

Circle Research introduces Arc Multi-Proposer Protocol (AMP), a new approach to block building.

AMP introduces proposers that bundle user transactions into payloads and broadcast them directly to validators.

The result:
→ Bounded inclusion
→ Fixed ordering
→ Application-aligned order flow

For financial applications, block construction matters. Predictable settlement needs predictable transaction handling.

https://t.co/CgDuWxSMpI

[Arc @arc]

Arc Public Testnet is now live.

Open to developers and enterprises globally, Arc is the Economic OS for the internet that unites programmable money and onchain innovation with real-world economic activity.

Start building: https://t.co/XmFdy0SG5g
Learn more: https://t.co/JOGsf9Ma5V

[Sam | Circle and Arc Community @samconnerone]

Last night was a movie!!

At the Digital Payments Workshop and Market in Bermuda, hundreds showed up and received $100 in @circle’s @usdc along with one Gold ETF ~$60 from @xStocksFi in real time.

They then head over to the onsite market where they could shop with local vendors and spend their newly acquired USDC to complete real world transactions

A true full circle moment

Huge shout out to @coinbase @Decaf_so @StellarOrg and @krakenfx

[Raphael Donanu @RaphaelDonanu1]

@unipixnft 0x04d7db9c1abc9c6e0f8a6be89a0b9a9f7fe1063a

[Raphael Donanu @RaphaelDonanu1]

@z0r0zzz 0330fb48fbb858f80fdac439820f45bfca08bc15c5e0e5d2d4402a0dd8e3b17bb0

[Raphael Donanu @RaphaelDonanu1]

@easytopredict @z0r0zzz 0330fb48fbb858f80fdac439820f45bfca08bc15c5e0e5d2d4402a0dd8e3b17bb0

[Raphael Donanu @RaphaelDonanu1]

@0xae13 0330fb48fbb858f80fdac439820f45bfca08bc15c5e0e5d2d4402a0dd8e3b17bb0

[Raphael Donanu @RaphaelDonanu1]

Masterpiece!

[Arc @arc]

Arc Public Testnet is now live.

Open to developers and enterprises globally, Arc is the Economic OS for the internet that unites programmable money and onchain innovation with real-world economic activity.

Start building: https://t.co/XmFdy0SG5g
Learn more: https://t.co/JOGsf9Ma5V

[Arc @arc]

The GCC is becoming a key market for builders working on real-world stablecoin use cases.

With @Ignyte_AE, Arc is supporting a 3 month build challenge focused on high-impact opportunities across:
→ Cross-border payments and remittances
→ SME finance and trade workflows
→ Tokenized assets and compliant DeFi
→ The agentic economy

The goal is to help developers build credible prototypes on Arc that reflect real market needs.

Apply here: https://t.co/U8V4IQZTn0

[Jeremy Allaire - jerallaire.arc @jerallaire]

Some consistent themes emerging from early Arc builders: agentic, crosschain, usdc-native apps.

[Jeremy Allaire - jerallaire.arc @jerallaire]

Arc will be one of the very first blockchain networks in the world with PQ features at Day 1 on mainnet. Read our full Post-Quantum roadmap.

[Arc @arc]

Building capital markets infrastructure today means stitching together clearing, custody, reconciliation, and compliance across multiple disjointed systems.

On Arc, developers can:
→ Execute atomic DvP in a single transaction
→ Settle with deterministic finality in seconds
→ Embed compliance controls directly in asset logic
→ Automate distributions, redemptions, and margin flows
→ Manage stablecoin-native collateral onchain

Arc turns post-trade complexity into programmable infrastructure.

Building rails for capital markets applications designed for 24/7 real-time settlement.

[Circle Developer @BuildOnCircle]

155 teams shipped on Arc at ETHGlobal HackMoney.

What emerged from the builder community:
→ AI agents managing treasuries autonomously
→ SMS-based DeFi with no app required
→ Self-paying corporate treasuries deploying idle capital
→ Construction escrow without lawyers or wire delays

Developers are using Arc as a liquidity hub to coordinate multichain USDC flows without managing the underlying complexity.

Read the full hackathon review: https://t.co/onkbY30fLT

[Lora Finance @LoraFinance]

24 hours.

The queue unlocks.

Everyone inside enters Season I
and starts earning points.

If you’re still outside…
this is your last window.

→ https://t.co/DdqI3yzBiM

[Fermah @fermah_xyz]

Flashcast Social live on private beta.

Tweet to create. Instant resolutions.

Comment "quest" below for your code → complete quests → join waitlist.

flashcast · social

[Raphael Donanu @RaphaelDonanu1]

My Flashcast Social waitlist position is: #

[Raphael Donanu @RaphaelDonanu1]

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