1. Introduction and Scope
These Staking Terms and Conditions (“Terms”) govern the use of the digital asset staking services (“Staking Program”) provided via the Platform operated by Rintral Trading, S.L.U. (“Rintral”), a private limited company incorporated under the laws of Spain with company number B66096686. Rintral acts as a technical and commercial facilitator of staking functionalities, providing Users with front-end access to staking services through the Nebeus platform interface (
https://nebeus.com), in accordance with applicable EU financial, consumer protection, and virtual asset service regulations.
These Terms apply exclusively to Users, whether natural persons or legal entities, who (i) hold a verified Nebeus account, (ii) have completed all applicable identity verification steps (KYC/KYB), and (iii) elect to participate in one or more staking services offered through the Platform or any affiliated channel.
By initiating a Staking Program, the User expressly acknowledges and agrees that:
(i) They have read, understood, and accepted these Terms in full;
(ii) They are the legal and beneficial owner, or duly authorized representative, of the staked digital assets;
(iii) They accept the risks associated with staking, including asset lock-up, yield variability, loss of access during the staking period, and the potential for partial or total loss of value.
Staking services provided by Rintral are based on off-chain models and involve the delegation of digital assets to third-party blockchain validators or institutional partners. Rintral does not operate as a blockchain validator or custodian. Instead, it collaborates with regulated institutional service providers, such as custodians, technical staking nodes, and virtual asset platforms, who operate under the supervision of competent financial authorities.
Users retain legal ownership of the digital assets unless explicitly stated otherwise. However, during the staking period, the assets may be inaccessible and may not be withdrawn, pledged, reassigned, or used for other purposes. Users are advised to consider this restriction prior to initiating any staking transaction.
Participation in the Staking Program does not grant the User any ownership, equity, or fiduciary rights in Rintral or its partners. It is solely intended to provide the User with the opportunity to earn rewards through passive participation in supported blockchain networks.
Users are strongly encouraged to review the General Terms of Use and the Risk Disclosure Statement before engaging with any staking service.
These Terms may be amended from time to time as outlined in Clause 14 (Modifications). Continued use of the Staking Services after the publication of such changes shall constitute acceptance of the revised Terms.
Rintral performs these services in coordination with regulated custodians, EU-based payment providers, and licensed exchange platforms. All infrastructure partners operate under the required regulatory frameworks to ensure the technical, operational, and compliance standards necessary to deliver the services described in these Terms.
2. Definitions
For the purpose of these Terms, the following definitions apply:
- Account Holder: A natural person or legal entity who has successfully registered and verified a Nebeus Account and holds Eligible Assets qualified for participation in the Staking Program.
- Platform: The digital interfaces, including the website (https://nebeus.com) and associated mobile or desktop applications, operated by Rintral, through which Users may access the Staking Program.
- Staking Program: The service offered by Rintral that enables Users to delegate and lock Eligible Digital Assets for a predetermined Staking Period in exchange for periodic rewards, as defined by the applicable plan and asset.
- Staked Assets: The digital assets deposited by the User and committed to a specific Staking Program. Such assets remain non-transferable and inaccessible throughout the entirety of the Staking Period.
- Reward(s): The yield, return, or other staking-based incentive earned by the User as a result of their participation in the Staking Program, calculated based on network participation parameters and credited in accordance with the selected staking plan.
- Staking Period: The specific duration for which the Staked Assets remain locked within the Program, during which the User cannot access, withdraw, or otherwise utilize said assets.
- Third-Party Provider: Any external validator network, blockchain protocol, staking infrastructure operator, or technical service provider engaged by Rintral to facilitate staking of the Eligible Assets.
- Eligible Assets: The digital tokens or cryptocurrencies explicitly approved and supported for staking on the Platform, including but not limited to USDC, EUROC, and other assets published from time to time on the Staking Program interface.
All other capitalized terms shall have the meaning defined in the General Terms of Use, unless otherwise stated herein.
3. Eligibility and Activation
Access to the Staking Services is strictly limited to Users, whether individuals or legal entities, who maintain a verified Nebeus Account and have successfully completed the applicable identity verification procedures in compliance with prevailing anti-money laundering (AML) and counter-terrorist financing (CFT) regulations.
(i) Individual Users must be at least 18 years of age or of legal majority in their jurisdiction of residence, possess full legal capacity, and complete Know Your Customer (KYC) verification procedures via the Platform.
(ii) Corporate Users must be properly incorporated under the laws of their respective jurisdiction, provide valid incorporation documents, and complete Know Your Business (KYB) verification, including the identification and verification of directors, authorized representatives, and ultimate beneficial owners.
Access to the Staking Program may be restricted for Users domiciled in jurisdictions subject to international sanctions, trade restrictions, or classified as high-risk under internal compliance criteria or applicable regulations.
1. To activate a Staking Program, the User must:
2. Select a supported Eligible Asset from the Platform interface;
3. Specify the desired staking amount;
4. Choose a lock-up period and applicable reward structure;
5. Review and accept all program-specific terms and disclosures, including those concerning yield estimates, payout schedules, withdrawal rules, and risk factors.
Program activation requires express acceptance via the Platform and is captured through secure electronic means. Upon confirmation, the staking arrangement becomes binding and irrevocable for the full duration of the selected Staking Period.
During this period, Staked Assets remain inaccessible and may not be withdrawn, reassigned, or otherwise utilized by the User. By initiating a staking transaction, the User affirms their understanding of the mechanics and assumes full responsibility for the associated risks, which include but are not limited to market volatility, asset liquidity constraints, and disruptions at the protocol level.
Rintral reserves the discretionary right to(i) decline or defer activation requests; (ii) suspend or restrict User access to staking features; (iii) request updated identity or compliance documentation at any time.
Non-compliance with such requests may result in temporary suspension or permanent disqualification from the Staking Program.
4. Staking Program Description
The Staking Services available through the Platform enable Users to delegate Eligible Assets for a specified period in exchange for potential rewards. These rewards are accrued through mechanisms such as validator participation, protocol-level operations, or integrations with third-party providers that facilitate staking within supported blockchain ecosystems.
Each Staking Program is defined by a set of key parameters, including but not limited to:
(i) Lock-Up Period: The mandatory timeframe during which the staked digital assets are immobilized and cannot be withdrawn, traded, or otherwise accessed by the User.
(ii) Reward Rate: The anticipated return, typically expressed as an annual percentage rate (APR), which may be fixed or variable depending on the staking configuration. Reward rates are subject to change due to market volatility, protocol amendments, or technical limitations.
(iii) Payout Frequency: Rewards may be credited on a recurring basis, such as daily, weekly, or monthly, based on the specific terms of each staking program.
(iv) Eligible Assets: Only selected digital assets, including USDC, EUROC, and others expressly listed on the Platform, qualify for participation. The availability of each asset is disclosed at the time of program selection and may vary by jurisdiction or technical capability.
(v) Reward Currency: In most instances, rewards are distributed in the same currency as the staked asset. However, alternative reward currencies may be offered where technically feasible and clearly communicated during the activation process.
All relevant program details, including projected yield, payout structure, and asset eligibility, are transparently displayed on the Platform during the activation workflow. Users must carefully review and affirm acceptance of these conditions before initiating any staking activity.
Rintral does not warrant the accuracy or availability of projected returns and reserves the right to modify, suspend, or terminate any Staking Program at its sole discretion.
Unless explicitly stated otherwise, all staking operations on the Platform are conducted off-chain and are not governed by blockchain-based smart contracts. Staked Assets are managed either within Rintral’s proprietary systems or by regulated third-party partners with whom Rintral maintains contractual relationships. These arrangements may differ from traditional custodial services and do not involve the User directly interacting with blockchain staking nodes.
5. Asset Lock-Up and Reward Structure
By initiating a Staking Program, the User irrevocably delegates full title and operational rights over the Staked Assets to Rintral for the duration of the selected Lock-Up Period. Rintral may use these assets at its discretion, including but not limited to delegation to validator nodes, integration into third-party protocols, or participation in off-chain staking infrastructures.
Upon activation:
(i) Irrevocable Lock-Up: The Staked Assets are immediately immobilized and remain inaccessible throughout the full duration of the program. Early redemption or withdrawal is not permitted unless explicitly stated in the program-specific conditions.
(ii) Reward Calculation: Staking rewards are computed based on the amount of assets staked, the applicable reward rate, and the agreed Lock-Up Period. While the indicated reward rate is presented during activation, it is not fixed and may be adjusted due to factors such as blockchain protocol updates, validator performance variability, and network conditions.
(iii) Staking Infrastructure: Rintral may employ either its own aggregated staking infrastructure or collaborate with third-party validators and staking intermediaries to facilitate asset participation in staking protocols. Depending on the design of the protocol, this may involve off-chain management or interaction with smart contracts.
(iv) Reward Distribution: Users become eligible to receive staking rewards only after the full completion of the Lock-Up Period, subject to all requirements and limitations specified in the activated program.
(v) No Governance Rights: Participating in a Staking Program does not confer any governance, voting, or ownership rights over the blockchain network or staking pool to which the assets are delegated.
It is expressly acknowledged that the actual rewards credited to a User may vary from the advertised or estimated rate due to technical adjustments, rounding mechanisms, validator performance, or network outages. Rintral commits to ensuring a high level of operational transparency and to selecting reputable validator partners; however, it makes no guarantees regarding the continuity, profitability, or availability of staking rewards.
6. Staking Period and Early Withdrawal
Each Staking Program operates on the basis of a fixed and pre-defined Staking Period, which commences upon activation and ends only at the conclusion of the corresponding Lock-Up Period.
The selected Staking Period is binding and cannot be modified after activation. Users must choose from the available durations presented on the Platform interface at the time of onboarding.
Once the staking transaction is confirmed, the Staked Assets are locked and rendered inaccessible for the entire duration of the Lock-Up Period. Early withdrawal, cancellation, or modification of the staking parameters is not permitted under normal conditions.
In rare and extraordinary situations—such as validator slashing events, protocol-level disruptions, or force majeure incidents—Rintral reserves the right to suspend, interrupt, or terminate staking programs prematurely. Affected Users will be promptly notified, and any potential recovery or compensation mechanisms will be communicated transparently.
At the end of the Staking Period, the original Staked Assets, along with any rewards accrued, will be released and credited back to the User’s Wallet. The payout will occur in the digital currency selected during onboarding, unless otherwise dictated by program-specific terms or technical constraints.
It is the User’s sole responsibility to evaluate and select a staking duration that aligns with their financial goals, liquidity needs, and personal risk tolerance. Rintral disclaims any liability for losses, missed opportunities, or liquidity limitations caused by the mandatory immobilization of assets during the Staking Period.
7. Interest Payout and Taxes
(i) Rewards accrued through the Staking Program are distributed in the form and frequency disclosed at the time of activation. Unless otherwise specified, staking rewards are calculated daily and paid out upon completion of the Staking Period.
(ii) Users may select their preferred payout currency during onboarding, subject to availability and technical feasibility. Supported reward currencies may include the same asset initially staked (e.g., USDC or EUROC) or an alternative fiat-equivalent, as indicated on the Platform.
(iii) All staking rewards are gross amounts, prior to the deduction of applicable taxes or withholding obligations. Rintral, as Program Manager, may be required to apply withholding tax in accordance with Spanish tax legislation, including Law 26/2014 and other relevant frameworks.
(iv) A standard withholding rate may be applied to reward distributions depending on the User’s tax residency and the nature of the earnings. Users may request a Tax Withholding Certificate for reporting purposes.
(v) Each User is responsible for fulfilling any additional tax obligations that may arise in their country of residence. Rintral does not provide tax advice and disclaims any liability for unreported or incorrectly reported earnings.
(vi) By participating in the Staking Program, Users consent to Rintral’s compliance with all applicable tax reporting obligations, including international frameworks such as DAC7 and the Common Reporting Standard (CRS).
As part of its obligations under Spanish law, Rintral acts as a tax agent and may apply withholding tax to staking rewards. The applicable percentage is determined based on the User’s tax residence and prevailing regulations. By accepting these Terms, the User consents to such withholding.
8. Service Fees
Rintral may apply service fees to Staking Programs, which are deducted from either the staked principal or the rewards, depending on the specific program configuration. All applicable fees are disclosed transparently during the activation process.
Fees may include, but are not limited to: (i) Staking Management Fees: covering operational, technical, and compliance costs related to the execution of the staking activity; (ii) Reward Sharing Fees: representing a percentage of the gross reward amount, retained by Rintral or its service providers; (iii) Early Termination Penalties (if applicable): fees charged in exceptional cases where early withdrawal is permitted and executed; (iv) Third-Party Costs: In cases where staking involves external validators or blockchain network fees, additional costs may apply and be factored into the final reward distribution. These are subject to the technical conditions of the underlying blockchain protocols.
All fees and charges, including estimated annual percentage rates (APR) net of fees, are displayed on the Platform prior to activation. By confirming a Staking Program, the User agrees to the applicable fees and authorizes Rintral to deduct them from the relevant amounts. Rintral commits to full transparency regarding any fees applied to staking activities and does not impose undisclosed or retroactive charges.
9. Risk Disclosure and Disclaimers
Participation in the Staking Program involves significant risks. By activating a staking plan through the Platform, the User acknowledges and accepts the following:
(i) Volatility and Market Risk: The value of staked digital assets and corresponding rewards is inherently volatile. Market fluctuations may significantly reduce the value of the staked principal or any returns.
(ii) Protocol-Level Risk: Blockchain staking involves reliance on third-party validator networks and protocol rules that may change without notice. Risks include slashing penalties, validator unavailability, forks, consensus changes, and reward mechanism modifications.
(iii) Custodial and Operational Risk: Rintral does not provide direct custody. Staked assets may be held via third-party partners, and Rintral disclaims responsibility for events such as custodian insolvency, service suspension, or technical failure.
(iv) Regulatory Uncertainty: Staking services may be impacted by future legal or regulatory changes, including those affecting classification, tax treatment, or operational legality in specific jurisdictions.
(v) Return Variability: Indicative yields published on the Platform are subject to change and not guaranteed. Reward distribution may vary based on validator performance, network congestion, or protocol-level rules.
(vi) Asset Illiquidity: During the Lock-Up Period, staked assets are not accessible for withdrawal or use. Users must consider their liquidity needs prior to engagement.
(vii) Technical and Force Majeure Events: Platform outages, cyberattacks, internet disruptions, or force majeure events may affect staking functionality, reward crediting, or asset return timing.
Rintral advises Users to consult independent financial and legal advisors to assess suitability before engaging in any staking activity.
10. Fraud Prevention and Misuse
(i) Account Integrity: Users are responsible for maintaining the security and confidentiality of their account credentials. Any unauthorized access or suspicious activity must be reported to Rintral immediately.
(ii) Anti-Fraud Measures: Rintral reserves the right to monitor staking activity to detect and prevent fraud, abuse, or manipulation of reward mechanisms. Suspicious transactions may be flagged, suspended, or reversed pending further investigation.Prohibited Conduct: Users may not use the Staking Services to engage in illegal, fraudulent, or abusive behavior, including but not limited to:
- Circumventing lock-up restrictions or program limitations;
- Attempting to manipulate staking rewards through duplicate or linked accounts;
- Participating in collusion or using external tools to exploit technical vulnerabilities.
Enforcement Actions: In the event of suspected misuse, Rintral may: (i) temporarily freeze or terminate the Staking Program; (ii) reclaim any improperly obtained rewards; (iii) suspend or close the User’s account; (iv) report violations to the relevant authorities, including law enforcement or financial regulators.
Rintral enforces a strict zero-tolerance policy for fraud and reserves the right to take legal action against Users who attempt to compromise the integrity of the Platform or the security of other participants.
Users acknowledge that staking services are governed by internal and external compliance requirements, and agree to cooperate fully with any investigation initiated by Rintral or its partners.
11. Suspension and Termination of Services
Rintral reserves the right to suspend or terminate the User’s access to Staking Services at any time if: (a) a breach of these Terms or the General Terms of Use is identified; (b) the User fails to meet ongoing eligibility or verification requirements; (c) fraudulent, suspicious, or non-compliant activity is detected; or (d) required by law, regulation, or competent authority.
Suspension may be temporary or permanent depending on the severity of the issue and may include the freezing of staked assets, withholding of pending rewards, and disabling of further staking operations.
In the event of termination, any assets not subject to lock-up shall be returned to the User’s Wallet, subject to applicable fees and pending verifications. Locked assets will remain in the Program until the expiration of the Lock-Up Period unless otherwise required by law.
Rintral shall provide notice of termination or suspension via the Platform or registered email, except where prohibited by legal constraints or security considerations.
Termination of the staking service shall not affect any rights or obligations accrued prior to the date of termination and does not exempt the User from ongoing legal responsibilities, including those arising from tax or regulatory requirements.
12. Limitation of Liability
To the fullest extent permitted by law, Rintral disclaims any liability arising out of or relating to the Staking Services provided via the Platform:
(i) Market Losses: Rintral shall not be liable for any financial loss resulting from price volatility of the Staked Assets or reduction in accrued rewards.
(ii) Service Outages and Force Majeure: Rintral is not responsible for delays or failures resulting from causes beyond its control, including but not limited to natural disasters, cyberattacks, regulatory action, or service provider failures.
(iii) Performance and Earnings: No representation is made regarding future reward rates. Projected APRs are estimates only and subject to adjustment. Rintral is not responsible for any difference between estimated and actual returns.
(iv) Protocol and Custody Failures: Rintral disclaims liability for slashing, staking penalties, or any adverse event occurring at the protocol level or by delegated validators.
(v) Technical Errors: Users accept the possibility of technical issues affecting reward distribution or token redemption, including system maintenance, software bugs, or third-party API failures.
(vi) Indemnification: Users agree to indemnify, defend and hold harmless Rintral, its officers, employees, and agents from any losses, claims, or liabilities arising from violation of these Terms, applicable law, or misuse of the services.
(vii) No Fiduciary Duty: Nothing in these Terms shall constitute or create a fiduciary relationship. Rintral acts as a service facilitator and does not hold or manage assets as trustee or financial advisor.
13. Communications and Notifications
All communications regarding the Staking Services, including confirmations, updates, notices, and disclosures, will be made available to Users through the Platform interface and/or sent to the email address associated with their verified account.
Users are responsible for maintaining accurate and up-to-date contact information. Rintral shall not be held liable for any losses arising from the User’s failure to receive or review communications due to outdated or incorrect details.
Service-related notifications may include, without limitation: activation confirmations, payout updates, staking term reminders, changes to reward rates, or compliance-related requests. Users are encouraged to monitor their Platform inbox and registered email regularly.
Where permitted, Rintral may also use secure SMS, push notifications, or in-app alerts to communicate urgent service issues or security incidents. Opting out of essential communications may not be possible unless the User terminates their account.
Communications related to disputes, legal matters, or regulatory obligations will be issued in accordance with applicable laws and may require formal written delivery depending on the jurisdiction involved.
14. Modifications to Terms
Rintral reserves the right to amend, update, or replace these Staking Terms at any time to reflect changes in regulatory requirements, risk management policies, technological developments, or service structure.
Any material modification will be communicated to Users via email, Platform notifications, or other appropriate means no less than fourteen (14) calendar days before such changes take effect, except where immediate implementation is required by law or regulation.
Continued use of the Staking Services following the effective date of amended Terms constitutes the User’s full and irrevocable acceptance. If the User does not agree to the modifications, they must discontinue use of the Staking Services before the changes become effective and may request the closure of any active positions upon expiry of the applicable Lock-Up Period.
Historical versions of these Terms are retained and made available upon request for compliance and audit purposes.
15. Reference to General Terms of Use
These Staking Terms form an integral part of the broader legal framework governing the use of the Platform. They are to be read and interpreted in conjunction with the General Terms of Use, the Privacy Policy, and any other product-specific agreements or disclosures provided by Rintral.
In the event of any conflict or inconsistency between these Staking Terms and the General Terms of Use, the provisions of these Staking Terms shall prevail exclusively with respect to matters related to the Staking Services.
16. Miscellaneous
(i) Assignment: Rintral may assign or transfer its rights and obligations under these Staking Terms to any affiliated entity, regulated partner, or service provider, provided such assignment does not materially impact the User’s legal rights. Users may not assign or transfer any rights under these Terms without Rintral’s prior written consent.
(ii) Severability: If any provision of these Terms is held to be invalid, unlawful, or unenforceable, such provision shall be severed without affecting the validity and enforceability of the remaining provisions.
(iii) No Waiver: No failure or delay by Rintral in exercising any right or remedy under these Terms shall constitute a waiver thereof.
(iv) Regulatory Compliance: Nothing in these Terms shall limit Rintral’s obligation or right to comply with applicable legal or regulatory requirements, including those related to AML/CFT, tax reporting, or electronic communications.
(v) Entire Agreement: These Terms, along with any referenced policies or disclosures, constitute the entire agreement between the User and Rintral regarding Staking Services and supersede any prior oral or written representations.
17. Dispute Resolution and Governing Law
In the event of a dispute related to the Staking Services, Users must first attempt to resolve the matter by contacting Rintral’s Customer Support through the designated channels available on the Platform. Users should provide full details of the issue, including relevant transaction references and any supporting documentation.
Rintral will review the complaint and respond within a reasonable timeframe, generally not exceeding thirty (30) business days. Complex cases or those requiring coordination with third-party service providers may require additional time, and Users will be duly informed of any delays.
If no satisfactory resolution is achieved, Users may escalate the matter to Rintral’s Compliance Department, which will conduct an independent assessment in accordance with internal dispute handling procedures.
These Staking Terms and any dispute arising from them shall be governed by and construed in accordance with the laws of the Kingdom of Spain, without regard to conflict of laws principles. Unless otherwise required by applicable consumer protection law, any legal proceedings shall be submitted to the exclusive jurisdiction of the Courts of Barcelona, Spain.
Nothing in this section limits either party’s right to seek interim or injunctive relief where necessary to protect their rights or comply with regulatory obligations.