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AlexandrB
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Ok… this one feels different.
I just completed the full ERC-8004 flow on @arc Testnet:
✔️ Created owner + validator wallets
✔️ Registered agent identity
✔️ Recorded reputation
✔️ Requested & passed validation (100)
✔️ Tag: kyc_verified
This is not just a contract — this is a working identity + reputation system onchain.
Next step: integrate it into my app.
Docs: docs.arc.network
Special thanks to to @woshijiqiren_ for the video x.com/woshijiqiren_/… ! Although I don’t know Chinese, the logic is clear from the video - and nothing more is needed.
ps. it took about 15 minutes to do this, and only because I checked the documentation!!!

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@Mehmet37557590 @arc Yeah… if I’d been a bit faster, my agent would’ve been number 1122 😄
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@AlexandrB27 @arc Can you make a detailed clip in english for us?
Thanks mate.
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@AlexandrB27 @arc Hey Alex! Great job! I was given access to the Build on Ark Discord channel. As far as I understand, you've been kicked out of the channel. If you don't mind, I can contact the channel owners about reinstating you.
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@AirdropZrzut Thank you! Your bridge development result is impressive! Congratulations! For me, this is just the next step that I’m only starting to work on.
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@AlexandrB27 That's awesome Check out what I managed to do
x.com/AirdropZrzut/s…
wija (🍊,💊) π² Zetarium $XAGE@AirdropZrzut
I just built a full USDC cross-chain bridge on the @arc testnet using @circle Gateway + CCTP 🚀 ✅ Unified USDC balance across 6 chains ✅ Instant withdrawals: Arc → Base, ETH, ARB, OP, AVAX ✅ Return path: Any chain → Arc via CCTP ✅ Built with Next.js + Circle Gateway API + CCTP V2 ✅ QR code, live balances, transaction history One balance. Six chains. In both directions. No bridging. No pre-funding. Just USDC. #Arc #Circle #Gateway #CCTP #USDC #BuildOnArc #Web3
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Finalizing My Arc USDC Desk✅
I’ve finally completed the detailed setup of my Arc USDC Desk.
The current functionality includes:
- Wallet connection + network verification (Arc Testnet)
- Multi-token balance display (USDC, EURC, SYN)
- Send flow with proper input validation (supports both 0.2 and 0,2 + protection against mistakes like “02”)
- Real-time balance check before sending (prevents insufficient balance errors)
- Correct amount capture - even if you change the amount while confirming in the wallet
- Persistent recent transactions history with timestamp
“Copy tx hash” button after successful transaction
Built with wagmi + viem + React.
It took many iterations, quite a few bugs, and lots of testing to get everything stable.
Before I start building my own bridge on Arc, I’ve decided to sit down and write a full detailed guide for anyone who’s interested in this project or wants to build something similar.
Stay tuned — the guide is coming soon.
@arc @circle


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Hi, this is just a test application on the Arc network that I’ve deployed locally (on my computer). For now, it can only connect to the Arc blockchain and send/receive payments. Anyone can install it, add other tokens to the code, and modify it however they want. The installation guide is pinned.
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@ivarus39 Done! x.com/AlexandrB27/st… If you're testing, don't hesitate to ask. Together we can achieve more!
AlexandrB@AlexandrB27
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@AlexandrB27 Hello Alex! I can't wait! I've gained access to Build on Ark. But I'm still not sure and dont know what to do there with my skill level. 😅
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Hi! Thank you so much for your interest! I'm already working on it — and you know, sometimes it feels like it's easier to just take the test myself than to turn it into a somewhat understandable guide... especially in English. By the way, if you're a Windows user, you'll need to install WSL (x.com/AlexandrB27/st… ) and set up some environment (x.com/AlexandrB27/st… ). And if I haven't finished yet, try deploying your smart - contract on Arc (x.com/AlexandrB27/st… ) (in the screenshot I'm showing my guide articles on this topic, and the links lead to those articles).Thanks again. This is really motivating!!!

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Just fixed a funny bug in my Arc USDC Desk app.
Problem: if I changed the Amount field while confirming the tx in wallet, the Recent Transactions showed the *new* amount instead of what actually went on-chain.
Solution: capture the amount exactly at the moment you click "Send USDC" (not on confirmation).
Now it always matches the blockchain ✅
Keep building and learning. My presence on the Arc Discord would be a huge help for me...
@arc @circle

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Another step forward on @circle @arc Testnet.
My local app now does more than just connect to the chain — it can already:
- wallet connection
- Arc network check
- USDC / EURC ERC-20 balance reading
- receive screen with QR / copy address
- send flow from the frontend
Successful tests:
0.1 USDC sent to a random address
send-to-self flow confirmed
Next target: bridge flow.
Docs: docs.arc.network


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Ok, first step done✅
My local Arc MVP is already talking to the chain: wallet connected, Arc Testnet detected, USDC / EURC balances loading in the UI.
Docs: docs.arc.network
Next: send / receive, then bridge flow.
Also, while doing this, I’m recording the steps and taking screenshots in case I turn it into a guide. Would that be useful to you guys, or should I just keep going with my own tests? @arc @circle

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@fivo_finance Congratulations!!! It's always a joy and a pleasure to see an idea realized!
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Today, Fivo officially joins the Circle Alliance Program.
What started as an idea on a notepad has grown into a stablecoin payment gateway built for online merchants, now supporting 9 blockchains and helping bring digital dollar and euro payments into real-world commerce.
We’re grateful to every builder, tester, and early supporter who believed in what we’re building and helped us improve it step by step.
Thank you to @circle and @BuildOnCircle for the trust and for supporting builders working to expand the utility of stablecoins.
We’re excited for what comes next.

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