Terms of use
ARCIDEX is a website that reads and writes to a desk contract on Robinhood Chain. By using arcidex.app or the desk contract you accept these terms. If you do not accept them, do not use either.
1. What ARCIDEX is
ARCIDEX has two parts. The interface is this website: the landing page, the swap card, the desk console and the tables. The desk contract is a single smart contract on Robinhood Chain (chain id 4663) that stores maker quotes, escrows the source token of an order, records the maker's delivery on Arc (chain id 5042) and releases the escrow when the taker confirms, when the dispute window passes, or when the arbiter rules.
The interface builds transactions for you to sign in your own wallet. It never holds your keys, never holds your tokens and cannot move funds on its own. Every amount, price and status it shows is read from Robinhood Chain, from Arc or from the ECB reference rate; when a value cannot be read it shows a placeholder.
2. Provided as is
The interface and the desk contract are provided as is and as available, without any warranty of any kind, express or implied, including merchantability, fitness for a particular purpose, title and non-infringement. We do not promise that the interface is free of errors, that a lane has a live quote, that a maker delivers on time, or that either chain, either RPC endpoint or the reference rate feed is available.
To the fullest extent the law allows, the people who build and operate ARCIDEX are not liable for any loss arising from your use of the interface or the desk contract, including loss from a maker's failure to deliver, from a wallet or RPC failure, from a mispriced quote you accepted, from a chain reorganisation, or from a bug in the contract. Where liability cannot be excluded it is limited to the fees you paid to the desk in the twelve months before the claim.
3. Self custody
You use your own wallet on Robinhood Chain and name your own recipient address on Arc. You are responsible for the addresses you enter, for the wallet you connect, for the network fees you pay and for keeping your keys safe. An order opened against the wrong recipient cannot be redirected by anyone, including us.
4. Makers are independent
Quotes are posted by makers who bond their own ETH in the desk contract. That bond is a dispute stake and a deterrent against junk quotes. It is not collateral for your trade and it is not insurance: it is typically far smaller than the amount you lock, and only a part of it can be moved, by the arbiter, after a dispute you win. The desk cannot see Arc, so a maker marking an order filled is a claim, not a proof. Check the delivery at the recipient address on Arc, and dispute inside the dispute window if it is wrong or missing. Makers are not employees, agents or partners of ARCIDEX and we do not vet them. A maker sets its own price, size range, capacity and expiry, and delivers on Arc from its own funds. The contract enforces the quoted price and holds the escrow; it does not guarantee that a maker fills. If a maker does not fill inside the fill window, the contract lets anyone trigger a refund of your source token.
5. The arbiter
If you dispute a fill inside the dispute window, the order goes to the arbiter address set in the desk contract. The arbiter reads the Arc receipt and the order record and rules for the taker or for the maker. A ruling for the taker returns the escrow to you and slashes part of the maker's bond in your favour; a ruling for the maker settles the escrow to the maker. The arbiter's decision is final onchain. A dispute cannot be left open for ever: the contract records a deadline when you dispute, and once it passes anyone at all can close the order, which returns your escrow to you in full and slashes nothing. The arbiter is the deployer at launch and may be changed by the contract owner; the current address is readable from the contract by anyone. Understand what that means while one wallet holds both roles: the arbiter can also be a taker, and an arbiter who rules on their own order keeps what was delivered on Arc, takes the escrow back and takes a slice of the maker's bond. Nothing in the contract prevents it. If you make a market here, you are trusting whoever holds the arbiter key; read it from the contract before you post a bond.
6. Fees and prices
The desk contract deducts a fee from the maker's leg at settlement. The fee rate is stored in the contract, capped by the contract, and shown in the desk console. The price you receive is exactly the maker's quoted price at the time your order opened. The ECB reference rate shown beside a quote is for comparison only and is never used to price an order.
7. Eligibility and sanctions
By using ARCIDEX you represent that you are not a person, and do not act for a person, that is the subject of sanctions administered by the United States, the European Union, the United Kingdom or the United Nations, and that you are not located in a jurisdiction where using the interface or the desk contract is prohibited. You are responsible for your own compliance with the laws that apply to you, including tax law.
8. No advice
Nothing on arcidex.app is investment, legal, tax or accounting advice. Stablecoins can trade away from their peg, bridged tokens depend on their bridge, and smart contracts can fail. Only use amounts you can afford to lose.
9. Changes and availability
We may change the interface, stop hosting it, or update these terms at any time. The desk contract keeps working without the interface: its address, its source and its functions are public, and anyone can read it from a node or call it from another client. Continued use of the interface after a change means you accept the change.
10. Contact
Questions about these terms go to @Arcidex_app on X.