🚨 IT’S OFFICIAL: PARCIS IS GOING TO ARC MAINNET! Monday 12th/10/2026 marks a major milestone for @Parcisonarc From building a better way to send payments to bringing human-readable identities, smart contract escrow, and seamless USDC payments to life - we're taking the next big step. Mainnet goes live Monday. 👀 The future of payments is getting closer. Stay tuned. 💚

PARCIS on Arc: How to Explore It on the New Domain TL; DR • What it is: PARCIS is a fully decentralized payment protocol that enables everyone to create shareable USDC link payments on an onchain payment app built on @arc for USDC payments and escrow. • Who it’s for: Builders, businesses, and users exploring practical onchain payment flows. • What you can do today: Create payment links, receive USDC, scan QR codes, and test escrow-based transactions. How to Use It 1. Visit the new PARCIS domain: parcis.app 2. Connect a compatible wallet. 3. Create a USDC payment link with the amount and payment details. 4. Share the link via WhatsApp, X, or generate a QR code for the payer. 5. Complete the payment and verify the transaction onchain. 6. Explore the escrow flow for transactions that require an additional layer of trust. What It Does PARCIS makes it easier to use USDC for everyday onchain payments. It can also be a means for onboarding other users who aren’t on web3. You can create a shareable payment request link, receive USDC, and use smart contract-powered escrow for transactions where both parties need additional protection. Every successful transaction contributes to your onchain payment history and reputation. QuickStart:- Step 1: Open the new PARCIS domain as shared above. Step 2: Connect your compatible wallet and make sure you have the required USDC on Arc. Step 3: Create a USDC payment request link. Step 4: Share the generated payment link or let the other person scan the QR code. Step 5: Complete the payment and check the transaction onchain. Expected result: The payment is completed in USDC, and the transaction can be verified onchain. Integration Notes • Built around USDC payments on Arc. • Payment links make it possible to request payments without requiring the payer to navigate a complex interface. • QR codes provide a simple path for physical or in-person payment experiences. • Smart contract escrow can be used for transactions that require conditional settlement. • Onchain transaction history can support reputation and payment verification. Security / Limits • PARCIS is currently an evolving product and should be treated accordingly. • Always verify the payment details and destination before confirming a transaction. • Never share your wallet seed phrase or private keys and always disconnect your wallet after testing. • Test with small amounts of USDC while exploring the application. • Verify transactions on the Arc explorer before considering a payment completed. Can You Build Against It? Yes, the interesting part is how PARCIS can evolve from a payment interface into infrastructure for businesses and developers building around onchain payments. Potential integrations include: • E-commerce payment flows • P2P payments • Service marketplaces • Escrow-based transactions • QR-based payments • Onchain business reputation Persona Targeting: Builders: Explore the payment and escrow flows and identify where PARCIS can fit into your own Arc application. Founders/PMs: Test how shareable USDC payment links could simplify payment collection for your product. Infra/tooling: Explore how payment verification, transaction history, and smart contract escrow can fit into existing infrastructure. Community/Educators: The payment link and QR flow provide a simple demo path for introducing people to practical onchain payments. End Users: Visit the new domain, connect your wallet, and safely test a small USDC transaction to experience the flow firsthand, built by me and my team. Links: • PARCIS: parcis.app Help Us Test It PARCIS has moved to a new domain, and we want more people to explore the latest version, which I believe it gonna be easier and simpler to navigate. What stack are you using to build on Arc, and where could PARCIS fit into it? If you test the app, what is the first thing you would improve or what blocker did you encounter?

We almost ran out of time, but we made it. My team and I submitted @Parcisonarc (PARCIS) at the very last minute for the ongoing @encodeclub Programmable Money Hackathon, in collaboration with @arc. Big shoutout to the real ones behind the scenes: @devabdullmajeed, @SdkSaddik & @saeifchain_. You guys have been putting in serious work. From fixing bugs to testing, breaking things, rebuilding and shipping again, you kept pushing until we finally hit that submit button. Much love to the entire team.❤️ It’s been weeks of turning an idea into something real, and honestly, the journey has been a ride. Now we wait and see what comes next. PARCIS is submitted. See you at the finish line.🫡

Happy Monday @arc Architects and thank you for your kind support. We made a few updates to @Parcisonarc to better align with the latest Arc branding kit and ensure it stays consistent with the ecosystem's design standards. If you have some time, I'd really appreciate your support and feedback. Every suggestion helps us build a better experience. Small changes. Stronger identity. Built on Arc. CC: @SdkSaddik @saeifchain_ @devabdullmajeed

We made a few updates to @Parcisonarc to better align with the latest Arc branding kit and ensure it stays consistent with the ecosystem's design standards. If you have a few minutes, we'd really appreciate your support and feedback. Every suggestion helps us build a better experience. Here are a few things you can explore while testing: • Create a USDC payment link and see how easy it is to share. • Test the trustless escrow flow for secure peer to peer payments. • Check out the onchain reputation system. • Experience the updated interface and branding. • Try the QR code payment flow. • Look for anything that feels confusing, slow, or could be improved. Please Don't just tell us it looks good. Break it, test it, and share your honest feedback. That's how we make Parcis stronger for everyone building on @arc. Every click, every test, and every suggestion moves us one step closer to a better product. @SdkSaddik @saeifchain_ @devabdullmajeed

A simple user journey works best because it helps people understand what PARCIS actually does without getting lost in technical details. How to Use PARCIS in Simple Steps:- ✅Step I. Connect Your Wallet Visit PARCIS and connect your preferred wallet. This gives you access to the platform while keeping full control of your funds.

I just finished listening to Blessing Adesiji's lecture on using USDC for real-world payment applications. One idea stood out clearly: The future of payments isn't just about moving value faster. It's about making financial interactions programmable, verifiable, and trust-minimized. That perspective aligns closely with what we're building. One of the biggest gaps in digital commerce today is trust. Too many people still lose their hard-earned money because escrow often relies on centralized intermediaries, manual verification, and opaque dispute resolution processes. Programmable money changes that. When USDC is used as the settlement asset, escrow conditions can be enforced directly by smart contracts, ensuring funds are released only when predefined conditions are met. No ambiguity. No hidden processes. Just transparent, deterministic execution. This is the direction we're taking with Parcis on Arc. We're building escrow infrastructure in which payments, settlement, and onchain identity work together to reduce counterparty risk and create more trustworthy digital transactions. You can test the app via parcis(.)vercel(.)app You can see and feel the new shipping we recently shipped in our app. The opportunity isn't simply to move payments onchain. It's to redesign the trust layer that powers them. Build on Arc, my bro.

GA @arc -hitects Don’t forget to test @Parcisonarc today, generate your USDC shareable link to make and receive payment directly to your wallet,no third-party, no middleman, Help drop your feedbacks. Let’s keep building PARCIS is build on @arc.

Parcis is an attempt to solve a problem that exists across the internet today: how do two people who don't know each other transact safely without relying on a middleman? Think about it. A freelancer wants assurance they'll get paid. A client wants assurance that the work will be delivered. A merchant wants a simple way to receive payments. A buyer wants proof that their money was used as agreed. Most of the time, we solve these problems by introducing a third party: a bank, a platform, or an escrow service, to sit in the middle and create trust. Parcis takes a different approach. Instead of placing trust in an institution, it places trust in transparent rules recorded on-chain. With Parcis, anyone can create a shareable USDC payment link and receive payments directly. But the more interesting part is what happens beyond the payment itself. Every payment link, every escrow agreement, every transaction, and every proof of delivery becomes part of a permanent and verifiable record on @arc. That means the transaction isn't just about moving money. It's about creating a transparent record of an economic relationship. If two parties agree on a service, the funds can be locked in a trustless escrow agreement. Neither side controls the funds, and neither side needs to trust the other blindly. The rules are defined up front, and settlement follows them. Arc isn't just about putting money onchain. It's about creating financial infrastructure where trust comes from transparency and verifiability rather than intermediaries. Parcis is one example of what that can look like in practice. A payment isn't just a payment. An escrow isn't just an escrow. They become building blocks for a more open economic system where individuals and businesses can coordinate directly, with fewer dependencies on centralized platforms. Over time, these interactions can form something even more valuable: a verifiable history of economic activity. Not just who paid whom, but who delivered, who fulfilled agreements, and who consistently acted in good faith. That's why I don't describe Parcis as simply a payments protocol. A system where payments, agreements, and trust can exist together on-chain, allowing people anywhere in the world to transact with greater confidence, transparency, and independence. And in many ways, that's exactly the kind of future @arc is trying to make possible. If you'd like to see what we're building and try it yourself, you can test the early version of Parcis here: parcis.vercel.app

Imagine paying a business as easily as sending a message. That's the experience we're building with PARCIS. Whether you're a local shop, freelancer, creator, graphic designer or global business, you can create a payment request and either: • Share a payment link, or • Let customers scan a QR code to pay instantly. Payments can be made in USDC. Need more than a direct payment? PARCIS also supports smart contract–powered escrow, allowing funds to be securely held onchain and released only when both parties meet the agreed conditions. That gives buyers and sellers an extra layer of confidence, especially for online and cross-border transactions. And every completed transaction helps build your onchain reputation, a verifiable record of trust that grows over time and follows you wherever you do business. We're not just building another payment app. We're building the infrastructure for programmable payments, escrow, and onchain reputation, making everyday commerce more secure, transparent, and accessible on @arc. This presents PARCIS as a complete commerce protocol: Shareable payment links & QR codes USDC payments Smart contract–powered escrow Onchain reputation A focus on real-world businesses and commerce Test the app via: parcis(.)vercel(.)app remove the brackets @devabdullmajeed @saeifchain_ @SdkSaddik