Arc Mainnet and real USDC.
Practice is free. Ranked play uses 1 real USDC per entry and the entry can be lost. A ranked entry is available only while the configured V4 vault recognizes the effective terms hash and an on-chain round is open.
Adults and lawful participation only.
A participant must be at least 18 and the age of legal majority where they live, control the wallet used, comply with applicable restrictions and not be subject to applicable sanctions. Availability does not override a restriction that applies to the participant.
One entry unlocks one continuous run.
Each confirmed ranked entry unlocks one run that continues across levels and ends on the first invalid collision. Payment does not change scoring, rotation or difficulty. Practice results remain local and cannot receive mainnet rewards.
The transaction is the receipt.
- The ranked entry is 1 USDC plus Arc network fees.
- Transfers use the canonical six-decimal USDC ERC-20 interface.
- Each valid entry binds one unique attempt identifier to the paying wallet.
- The participant controls the wallet, reviews every transaction and remains responsible for key security.
- ARCIRCUIT never asks for or stores a private key.
The server replays the run.
The wallet signs the completed result and ordered input-trace commitment. The verifier replays the trace under fixed rules and rejects mismatches, reused attempts, impossible timing and incomplete runs. The best eligible score per wallet ranks; ties favor the earlier verified completion.
The complete round value follows 80 / 10 / 10.
The complete value consists of entries, sponsor funds committed before the first entry and inherited rollover. V4 can settle with one, two or three distinct verified winners.
| Winners | Player reward | Other allocations |
|---|---|---|
| 3 | 40% / 24% / 16% | 10% next round · 10% treasury |
| 2 | 50% / 30% | |
| 1 | 80% |
Winners claim from their wallets. Uncommitted sponsor funds remain owner-withdrawable; committed sponsor funds follow round allocation. Player entries and rollover are not owner-withdrawable.
Cancelled entries become on-chain refunds.
If the owner cancels an open round, paid entries remain refund liabilities claimable by the entering wallets. Committed sponsor funds return to the separately accounted sponsor balance, and inherited rollover remains protected for a future round. Network fees are not refunded.
Compete as one real player.
Bots, input automation, client or API manipulation, replay submissions, collusion, multi-wallet evasion and attempts to exploit the vault or verifier are prohibited. Suspected abuse may be blocked or investigated.
Real value and irreversible actions.
Entry USDC can be lost. Smart contracts, wallets, RPC services, hosting, explorers and networks can fail, be delayed or change. Contract code may contain defects despite testing. ARCIRCUIT promises no profit, investment return or uninterrupted service and is not affiliated with or endorsed by Circle or Arc.
Verify the published version.
The deployed production vault stores the keccak256 hash of this effective copy. A later material update uses a new version and hash.
Open Markdown copy →