The Arc Briefing
One post a day at 09:00 UTC. Until mainnet it runs as the countdown series; from September 16 the same slot becomes daily Arc chain coverage.
- T-minus 1Radian Desk
Arc Mainnet, T-minus 1: tomorrow, complete
Twelve issues ago this countdown started. Tomorrow the network opens. Here is everything that matters for day one, in the order you will need it — and the few things worth refusing to do.
1 — day. See you tomorrow morning
- T-minus 2Radian Desk
Arc Mainnet, T-minus 2: the testnet's closing numbers
Before the countdown ends, the rehearsal deserves its record. Eleven months of public testnet, in numbers — and what they do and do not predict about Wednesday.
~13.5M — transactions in a single mid-August testnet week
- T-minus 3Radian Desk
Arc Mainnet, T-minus 3: when the customer is a machine
Circle lists agentic economic activity among Arc's founding use cases — AI systems paying each other for services, data and work. Three days out, a calm look at the most futuristic line in the pitch.
402 — the HTTP status code reserved for Payment Required, now finding its purpose
- T-minus 4Radian Desk
Arc Mainnet, T-minus 4: StableFX, or why currencies are the sleeper story
The global currency market moves trillions daily through plumbing built in the 1970s. Arc ships an FX engine in its foundation — and it might be the least-discussed, highest-stakes thing launching this week.
24/7/365 — StableFX's operating hours, against a market that closes every weekend
- T-minus 5Radian Desk
Arc Mainnet, T-minus 5: what builders are actually shipping for day one
Beyond the marquee DeFi names, a quieter layer determines whether a chain works in week one: the tooling for people who want to build and launch on it. Five days out, here is that layer.
26 — chains Team Finance operates on, with Arc set to be next
- T-minus 6Radian Desk
Arc Mainnet, T-minus 6: the scam wave arrives before the chain does
Every major launch produces a parallel launch nobody announces: the scams. Arc's will be big — institutional headlines plus a rumoured token is the perfect substrate. Here is what the next ten days will throw at you.
2 — domains capable of making ARC token news real
- T-minus 7Radian Desk
Arc Mainnet, T-minus 7: BUIDL, DTCC, and where the real money enters
One week out. Retail will watch token launches on the 16th; the institutions have already told us their plans — and their calendar runs on quarters, not launch days.
H2 2027 — when DTCC says DTC-custodied asset tokenisation on Arc begins
- T-minus 8Radian Desk
Arc Mainnet, T-minus 8: the apps waiting at the door
A chain is only as useful as what runs on it — and Arc opens with a day-one roster most new chains spend years assembling. Here is who is live at launch and what each is for.
100+ — builders on Arc's private mainnet before the public gets in
- T-minus 9Radian Desk
Arc Mainnet, T-minus 9: the ARC token file, read soberly
Nine days before mainnet, the loudest Arc topic is a token that doesn't exist. Here is the complete file — what is documented, what is reported, what is invented — in one sitting.
0 — ARC tokens launched, now or on September 16
- T-minus 10Radian Desk
Arc Mainnet, T-minus 10: read the validator list like a filing
Eleven named institutions will secure Arc at launch. Read as a list, it's a press release. Read as a filing — who's on it, who isn't, what each name is for — it's the clearest statement of what Arc is actually being built to do.
11 — named founding validators
- T-minus 11Radian Desk
Arc Mainnet, T-minus 11: the four-tenths-of-a-cent dollar network
Arc's defining feature is that transaction fees are paid in dollars — about $0.004 on average across the testnet. That sounds like a detail. It's actually the whole business model.
$0.004 — average testnet transaction fee
- T-minus 12Radian Desk
Arc Mainnet, T-minus 12: what actually happens on September 16
In twelve days, Arc's public mainnet opens — but "mainnet launch" is a phrase that hides more than it explains. Here is what concretely changes that day, what doesn't, and what to ignore.
12 — days until the public mainnet
- T-minus 18Radian Desk
Arc Mainnet, T-minus 18: the validator list is the whole story
Eleven institutions are named as validators on a chain whose gas is a dollar stablecoin. That combination, not a token, is what makes Arc unusual.
11 — named validators at launch
- T-minus 19Radian Desk
Arc Mainnet, T-minus 19: what dollar-denominated gas changes for a normal user
Gas paid in USDC means fees you can read without a calculator. It also means one fewer asset you are forced to hold.
$0.004 — average testnet transaction fee
- T-minus 20Radian Desk
Arc Mainnet, T-minus 20: the fake ARC tokens are already trading
There is no ARC token. There are already contracts named ARC with liquidity, charts and Telegram groups.
0 — official ARC token contracts in existence
Daily briefing
The countdown, in your inbox at 09:00 UTC
One briefing a day: what happened on Arc, why it matters, one number, one lesson, sources named. No price calls, no hype.
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