1. Introduction

These Terms of Service (the "Terms") form a binding agreement between you ("you" or the "User") and [ENTITY_NAME] ("[ENTITY_NAME]", "we", or "us"), the operator of the 4rho prediction-market exchange (the "Service"). The Service is a non-custodial peer-to-peer trading venue built on the Polygon PoS network, accessible through the website at https://4rho.com, mobile-web surfaces, the smart contracts deployed at the addresses published in our documentation, and any associated application programming interfaces (collectively, the "Platform").

By accessing or using the Platform, you agree to be bound by these Terms, our Privacy Policy at /legal/privacy, and our Risk Disclosure at /legal/risk. If you do not agree, do not access or use the Platform.

These Terms incorporate by reference each policy linked above. The binding arbitration and class-action waiver in Sections 14 and 15 affect your legal rights — please read them carefully.

2. Definitions

The following terms have the meanings given to them below when used in these Terms with an initial capital letter:

• "Collateral" means USDC (the United States Dollar Coin ERC-20 stablecoin) deployed on the Polygon Network.
• "CTF" means the Gnosis Conditional Tokens Framework smart contract used by the Platform to mint and redeem Outcome Tokens.
• "Operator" means the [ENTITY_NAME] role responsible for deploying Markets, settling matched Orders on-chain, proposing Resolutions, and performing administrative functions described in these Terms.
• "Order" means an EIP-712-signed instruction to buy or sell a specified quantity of Outcome Tokens at or better than a specified price, submitted by a User to the Platform's off-chain order book.
• "Outcome Token" means an ERC-1155 token representing a share in a binary outcome of a Market, redeemable for Collateral at Resolution if it represents the correct outcome.
• "Market" means a binary prediction market created and listed on the Platform.
• "Platform" has the meaning given in Section 1.
• "Polygon Network" means the Polygon PoS public blockchain.
• "Resolution" means the on-chain determination by the Operator of the correct outcome of a Market, subject to the timelock described in Section 9.
• "Restricted Jurisdiction" means any jurisdiction listed in the schedule maintained by [ENTITY_NAME] and published on the Platform from time to time, or any jurisdiction the laws of which prohibit access to the Platform.
• "Service" has the meaning given in Section 1.
• "Smart Contracts" means the Solidity contracts deployed by [ENTITY_NAME] on the Polygon Network to support the Platform, including without limitation Exchange.sol, MarketFactory.sol, the CTF, and FeeSweeper.sol.
• "Wallet" means a self-custodial cryptocurrency wallet (whether an externally-owned account such as MetaMask or an embedded wallet provisioned through Privy) that you control and use to interact with the Platform.

3. Eligibility

To access or use the Platform, you represent and warrant that:

1. you are at least 18 years of age and have the legal capacity to enter into a binding contract under the laws of your jurisdiction;
2. you are not a resident of, located in, or accessing the Platform from a Restricted Jurisdiction, and you will not use a virtual private network, proxy, or any other means to circumvent the geographic restrictions described in this Section;
3. you are not subject to any sanctions administered by the U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC), the United Nations Security Council, the European Union, the United Kingdom's HM Treasury, or any other applicable sanctions authority, and you do not appear on any specially-designated-nationals or blocked-persons list;
4. you are not located in a country or territory that is itself the subject of comprehensive sanctions;
5. your use of the Platform is not prohibited by applicable law in your jurisdiction, and you are solely responsible for compliance with that law;
6. you have not previously been suspended, banned, or otherwise removed from the Platform, and you are not creating an account on behalf of any person who has been; and
7. if you are accessing the Platform on behalf of an entity, you have the authority to bind that entity, and references to "you" in these Terms refer to both you individually and the entity.

[ENTITY_NAME] reserves the right to verify your eligibility at any time, including by requesting documentation. We may refuse access, suspend, or terminate your account if we determine, in our reasonable discretion, that you do not meet the eligibility criteria.

4. Account, Wallet, and Authentication

Authentication on the Platform is performed through Privy. You may authenticate by linking an externally-owned Wallet (for example, MetaMask or Coinbase Wallet) or by completing the email-link flow, in which case Privy provisions an embedded Wallet on your behalf. In every case, the private key controlling your Wallet is held by you (or by Privy under your direction), not by [ENTITY_NAME]. [ENTITY_NAME] does not custody, hold, or control User funds, Outcome Tokens, or Wallet private keys.

You are solely responsible for:

1. maintaining the confidentiality and integrity of your Wallet credentials, including any seed phrase, private key, password, or email account used to authenticate;
2. all activity that occurs under your Wallet, whether or not authorized by you; and
3. backing up any recovery phrase or maintaining access to the email account linked through Privy.

You may have only one active account on the Platform. Creating multiple accounts to circumvent eligibility requirements, fee schedules, position limits, or promotional limits is prohibited and is grounds for termination under Section 10.

You authorize [ENTITY_NAME] to send service-related communications to the email address linked to your Wallet. You may opt out of marketing communications at any time using the unsubscribe link in those messages or through your account settings.

5. Conduct and Prohibited Use

You agree that you will not, and will not attempt to:

1. manipulate any Market, including by placing orders without the intention to trade, engaging in wash trading, spoofing, layering, or coordinating with other Users to distort prices or order book depth;
2. trade on the basis of material non-public information obtained in breach of a duty of confidence;
3. abuse, exploit, or attempt to exploit any bug, vulnerability, or undocumented behavior in the Platform, the Smart Contracts, or any third-party service used by the Platform;
4. access the Platform from a Restricted Jurisdiction, including through any virtual private network, proxy, Tor exit node, or other technical means;
5. create accounts using stolen, synthetic, or otherwise fraudulent identification or Wallets that have been used in connection with theft, money laundering, terrorism financing, or other illegal activity;
6. interfere with, disrupt, or place an unreasonable load on the Platform, including through denial-of-service attacks, automated scraping that ignores published rate limits, or unauthorized use of the API;
7. resell, sublicense, or commercially redistribute access to the Platform without our prior written consent;
8. use the Platform for any unlawful purpose, or in any manner that would cause [ENTITY_NAME] to violate any applicable law; or
9. impersonate any person or entity, or misrepresent your affiliation with any person or entity.

We may, but are not obligated to, monitor activity on the Platform for violations of this Section. Suspected violations may be investigated and referred to law-enforcement or regulatory authorities where appropriate.

6. Intellectual Property

As between you and [ENTITY_NAME], [ENTITY_NAME] owns all right, title, and interest in and to the Platform, including the website, mobile surfaces, source code, design, the "4rho" and "4ρ" marks, logos, and all other content we make available, except for content you submit. Nothing in these Terms grants you any right or license in our intellectual property other than a limited, revocable, non-exclusive, non-transferable license to access and use the Platform in accordance with these Terms.

You retain all rights in the content you submit, including the EIP-712 signatures you produce when placing Orders and the messages you submit through the support inbox. You grant [ENTITY_NAME] a worldwide, royalty-free, non-exclusive license to host, store, reproduce, transmit, and display that content for the purpose of operating, securing, and improving the Platform.

You agree not to remove, obscure, or alter any proprietary notices on the Platform.

7. Risk Disclosures

You acknowledge and accept the risks described in our Risk Disclosure at /legal/risk, which is incorporated into these Terms by reference. Without limiting the Risk Disclosure, you specifically acknowledge that:

• Polygon Network risk — the Platform depends on the Polygon Network for settlement; congestion, gas-price spikes, validator behavior, RPC outages, and brief reorganizations may delay or prevent Order settlement, Market deployment, Resolution, or redemption.
• Smart Contract risk — the 4rho Exchange, MarketFactory, and FeeSweeper Smart Contracts have not, as of the date of these Terms, been formally audited by an independent third-party security firm. The source is published at https://github.com/4rho/4rho/blob/main/contracts/polygon/. Bugs in the Smart Contracts could result in loss of funds with no recourse.
• Market risk — Outcome Token prices may be volatile. A position can lose 100% of its value at Resolution.
• Liquidity risk — the order book on a given Market may be thin or one-sided. The Platform displays "RFQ" (Request for Quote) when no liquid two-sided market is available. You may be unable to exit a position at a fair price, or at all.
• Resolution risk — Resolution is performed by the Operator subject to a documented timelock window. The timelock provides an opportunity to cancel a proposed Resolution in narrow circumstances but is not a guarantee of correctness.
• Regulatory risk — prediction markets are a developing legal category. The legal treatment of the Platform may change in your jurisdiction without notice, and access may be restricted at any time.
• Self-custody risk — the Platform is non-custodial. Loss of your Wallet credentials means loss of your funds. We cannot recover lost private keys.
• Total loss — you may lose the entire amount of Collateral you commit to a position.

You should not trade on the Platform with funds you cannot afford to lose.

8. Fees

The Platform charges a per-trade fee at the time of settlement, denominated in basis points of the notional traded value. The current fee schedule, including any maker rebate, is published on the Platform and is reproduced in the Help Center at /help/fees. Fees accrue to the Operator's on-chain fee balance and may be withdrawn periodically.

[ENTITY_NAME] may change the fee schedule from time to time. We will publish the updated schedule and provide reasonable advance notice of material increases through an in-app banner and an email to the address linked to your Wallet. Continued use of the Platform after a fee change takes effect constitutes acceptance of the new schedule.

You are responsible for any blockchain network fees ("gas") associated with on-chain transactions you initiate, and for any taxes payable on your trading activity (see Section 7 of the Risk Disclosure).

9. Resolution and Settlement

When a Market reaches its scheduled close time, the Operator determines the correct binary outcome based on the data source identified in the Market specification and proposes a Resolution by calling MarketFactory.proposeResolution. The proposal opens a timelock window during which the proposed Resolution may be cancelled by the Operator if new information indicates the proposal was incorrect, the data source returned a manifestly erroneous value, or the Market specification is ambiguous on its face.

If the Operator does not cancel within the timelock window, the Resolution is finalized by calling MarketFactory.confirmResolution/finalizeResolution. Once finalized, the Resolution is recorded on-chain and is final.

After Resolution, holders of the winning Outcome Tokens may redeem them for Collateral by calling CTF.redeemPositions. Holders of losing Outcome Tokens are not entitled to any redemption.

[ENTITY_NAME] does not guarantee the correctness of any Resolution. Disputes about a Resolution must be raised through the in-app support inbox before the timelock expires; once the Resolution is finalized, [ENTITY_NAME] cannot unwind it.

10. Suspension and Termination

[ENTITY_NAME] may suspend or terminate your access to the Platform at any time, with or without notice, if we determine in our reasonable discretion that:

1. you have breached these Terms or any policy incorporated by reference;
2. your continued access poses a security, fraud, sanctions, or reputational risk to the Platform or other Users;
3. your access is required to be restricted by applicable law, court order, or regulatory request; or
4. the Platform, or the feature or Market you are accessing, is being discontinued.

Suspension or termination may take the form of a temporary suspension, a force-logout, an account ban, or a permanent removal of access. You may appeal any suspension or termination through the in-app support inbox at /support/tickets/new.

You may close your account at any time through your account settings. Because the Platform is non-custodial, closing your account does not affect your control of any Outcome Tokens or Collateral held in your Wallet; you may continue to redeem and transfer those assets directly on-chain.

The following Sections survive termination: 6 (Intellectual Property), 7 (Risk Disclosures), 11 (Disclaimer of Warranties), 12 (Limitation of Liability), 13 (Indemnification), 14 (Dispute Resolution and Arbitration), 15 (Class Action Waiver), 16 (Governing Law), 17 (Severability), and 19 (Contact).

11. Disclaimer of Warranties

THE PLATFORM IS PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS, WITH ALL FAULTS AND WITHOUT WARRANTY OF ANY KIND. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, [ENTITY_NAME] AND ITS AFFILIATES, OFFICERS, DIRECTORS, EMPLOYEES, AGENTS, AND LICENSORS DISCLAIM ALL WARRANTIES, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING WITHOUT LIMITATION THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, NON-INFRINGEMENT, AND ANY WARRANTY ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE.

[ENTITY_NAME] DOES NOT WARRANT THAT THE PLATFORM WILL BE UNINTERRUPTED, ERROR-FREE, SECURE, OR FREE OF VIRUSES OR OTHER HARMFUL COMPONENTS; THAT ANY DEFECTS WILL BE CORRECTED; THAT THE INFORMATION DISPLAYED ON THE PLATFORM IS ACCURATE, COMPLETE, RELIABLE, OR CURRENT; OR THAT ANY RESOLUTION WILL BE CORRECT.

NO ADVICE OR INFORMATION OBTAINED FROM [ENTITY_NAME] OR THROUGH THE PLATFORM CONSTITUTES INVESTMENT, FINANCIAL, LEGAL, TAX, OR OTHER PROFESSIONAL ADVICE. YOU SHOULD CONSULT A QUALIFIED PROFESSIONAL BEFORE MAKING ANY DECISION TO TRADE.

Some jurisdictions do not allow the exclusion of certain warranties, so some of the exclusions above may not apply to you.

12. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT WILL [ENTITY_NAME] OR ITS AFFILIATES, OFFICERS, DIRECTORS, EMPLOYEES, AGENTS, OR LICENSORS BE LIABLE TO YOU FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, INCLUDING WITHOUT LIMITATION DAMAGES FOR LOSS OF PROFITS, REVENUE, GOODWILL, USE, DATA, OR OTHER INTANGIBLE LOSSES, ARISING OUT OF OR IN CONNECTION WITH YOUR USE OF, OR INABILITY TO USE, THE PLATFORM, EVEN IF [ENTITY_NAME] HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

THE TOTAL CUMULATIVE LIABILITY OF [ENTITY_NAME] AND ITS AFFILIATES TO YOU FOR ALL CLAIMS ARISING OUT OF OR IN CONNECTION WITH THESE TERMS OR YOUR USE OF THE PLATFORM WILL NOT EXCEED THE GREATER OF (A) THE AGGREGATE FEES YOU PAID TO [ENTITY_NAME] IN THE TWELVE (12) MONTHS IMMEDIATELY PRECEDING THE EVENT GIVING RISE TO THE CLAIM AND (B) [CAP_AMOUNT_USD].

The limitations in this Section do not apply to liability for [ENTITY_NAME]'s gross negligence, willful misconduct, or fraud, or to any liability that cannot be excluded or limited under applicable law. Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so some of the limitations above may not apply to you.

13. Indemnification

You agree to indemnify, defend, and hold harmless [ENTITY_NAME] and its affiliates, officers, directors, employees, agents, and licensors from and against any and all claims, damages, losses, liabilities, costs, and expenses (including reasonable attorneys' fees) arising out of or in connection with:

1. your access to or use of the Platform;
2. your breach of these Terms or any policy incorporated by reference;
3. your violation of any applicable law or the rights of any third party; or
4. any Order you place, position you hold, or content you submit to the Platform.

[ENTITY_NAME] reserves the right, at its own expense, to assume the exclusive defense and control of any matter otherwise subject to indemnification by you, in which event you will cooperate with us in asserting any available defenses.

14. Dispute Resolution and Arbitration

PLEASE READ THIS SECTION CAREFULLY. IT REQUIRES YOU TO RESOLVE DISPUTES WITH [ENTITY_NAME] THROUGH FINAL AND BINDING INDIVIDUAL ARBITRATION AND LIMITS THE WAY YOU CAN SEEK RELIEF FROM US.

14.1 Informal Resolution

Before initiating arbitration, you and [ENTITY_NAME] agree to attempt to resolve any dispute, claim, or controversy arising out of or relating to these Terms or the Platform (a "Dispute") informally for at least sixty (60) days. To begin the informal-resolution period, you must send a written notice ("Notice of Dispute") to [NOTICE_EMAIL] that includes your name, the email or Wallet address linked to your account, a description of the Dispute, and the relief sought. We will send our Notice of Dispute to the email address linked to your account. If we cannot resolve the Dispute within sixty (60) days, either party may initiate arbitration.

14.2 Binding Individual Arbitration

You and [ENTITY_NAME] agree that any Dispute that is not resolved informally will be resolved exclusively by final and binding individual arbitration administered by [ARBITRATION_VENUE] under its [ARBITRATION_RULES] then in effect. The arbitration will be conducted by a single arbitrator. The seat of the arbitration will be [JURISDICTION], and the language of the arbitration will be English. Judgment on the award rendered by the arbitrator may be entered in any court of competent jurisdiction.

The arbitrator, and not any federal, state, or local court or agency, has the exclusive authority to resolve any Dispute, including the scope, applicability, enforceability, and formation of this arbitration agreement and any claim that all or any part of these Terms is void or voidable.

14.3 Carve-Outs

Notwithstanding Section 14.2, either party may (a) bring an individual action in small-claims court for Disputes within that court's jurisdiction, and (b) seek injunctive or other equitable relief in a court of competent jurisdiction to protect intellectual property rights.

14.4 Opt-Out

You may opt out of this arbitration agreement by sending written notice of your decision to opt out to [NOTICE_EMAIL] within thirty (30) days of first accepting these Terms. Your notice must include your name and the email or Wallet address linked to your account. If you opt out, neither you nor [ENTITY_NAME] will be bound by the arbitration agreement in this Section 14, but the remainder of these Terms (including Sections 15 and 16) will continue to apply.

14.5 Costs and Confidentiality

Each party will bear its own costs of arbitration, except that the arbitrator may apportion costs as permitted by [ARBITRATION_RULES]. The arbitration proceedings, including any award, will be confidential except as required to enforce the award.

15. Class Action Waiver

YOU AND [ENTITY_NAME] AGREE THAT EACH PARTY MAY BRING CLAIMS AGAINST THE OTHER ONLY IN AN INDIVIDUAL CAPACITY, AND NOT AS A PLAINTIFF OR CLASS MEMBER IN ANY PURPORTED CLASS, COLLECTIVE, OR REPRESENTATIVE PROCEEDING. UNLESS BOTH PARTIES AGREE OTHERWISE IN WRITING, THE ARBITRATOR MAY NOT CONSOLIDATE MORE THAN ONE PERSON'S CLAIMS, AND MAY NOT OTHERWISE PRESIDE OVER ANY FORM OF A REPRESENTATIVE OR CLASS PROCEEDING. IF THIS CLASS-ACTION WAIVER IS FOUND TO BE UNENFORCEABLE, THEN THE ENTIRETY OF SECTION 14 (DISPUTE RESOLUTION AND ARBITRATION) WILL BE NULL AND VOID, BUT THE REMAINDER OF THESE TERMS WILL CONTINUE TO APPLY.

16. Governing Law

These Terms, and any Dispute arising out of or relating to these Terms or the Platform, are governed by and construed in accordance with the laws of [GOVERNING_LAW], without regard to its conflict-of-laws principles. Subject to Section 14 (Dispute Resolution and Arbitration), the courts of [JURISDICTION] have exclusive jurisdiction over any Dispute that is not subject to arbitration.

The United Nations Convention on Contracts for the International Sale of Goods does not apply to these Terms.

17. Severability

If any provision of these Terms is held to be invalid, illegal, or unenforceable by a court of competent jurisdiction or arbitrator, that provision will be enforced to the maximum extent permissible and the remaining provisions of these Terms will remain in full force and effect. The invalidity of any provision in any jurisdiction will not affect the validity of that provision in any other jurisdiction.

These Terms, together with the Privacy Policy, the Risk Disclosure, and any other policies referenced herein, constitute the entire agreement between you and [ENTITY_NAME] with respect to the Platform and supersede all prior or contemporaneous understandings, whether written or oral, regarding the Platform.

18. Changes to These Terms

[ENTITY_NAME] may update these Terms from time to time. When we do, we will revise the "Last updated" date at the top of this page and, for material changes, will provide reasonable advance notice through an in-app banner and an email to the address linked to your Wallet.

The updated Terms will take effect on the date stated at the top of the page or, for material changes, on the effective date specified in the notice. Your continued access to or use of the Platform after the effective date constitutes acceptance of the updated Terms. If you do not agree to the updated Terms, you must stop using the Platform.

19. Contact

Questions about these Terms can be sent via the in-app support inbox at /support/tickets/new.

Formal legal notices to [ENTITY_NAME], including any Notice of Dispute under Section 14.1, must be sent to:

[ENTITY_NAME] [REGISTERED_ADDRESS] Email: [NOTICE_EMAIL]

Notices sent to any other address or by any other means will not be effective.