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Terms and Conditions — BTC Vault Sandbox

Last Updated: July 23, 2026

1. Introduction

These Terms and Conditions (“Terms”) govern your access to and use of the Rootstock Institutional BTC Vault Sandbox (“BTC Vault Sandbox”), provided by RSK Labs Limited, a company incorporated under the laws of the British Virgin Islands (“Company”, “we”, “our”, or “us”).

By accessing, depositing, or interacting with the BTC Vault Sandbox smart contracts, you (“User” or “you”) confirm that you are acting either in your individual capacity or as an authorized representative of a legal entity, and that you have the authority to bind such entity to these Terms. Also, you acknowledge that you have read, understood, and agreed to these Terms.

If you do not agree to these Terms, do not use the BTC Vault Sandbox.

2. Purpose and Experimental Nature

The BTC Vault Sandbox is an experimental, pre-production testing environment designed to simulate the functionality of a potential future yield-bearing vault for BTC-denominated crypto assets.

The BTC Vault Sandbox is not a live investment product. It is provided solely for testing, feedback, and evaluation purposes.

You acknowledge and agree that the BTC Vault Sandbox:

  • Is not an investment vehicle, not a financial product, and not regulated under securities or banking laws.
  • May fail, malfunction, or experience downtime, and the Company makes no guarantees of availability, accuracy, or performance.
  • Should only be used with funds you can afford to lose.

Participation in the BTC Vault Sandbox does not create any expectation, right, or entitlement regarding any future launch, product, or offering by the Company or its affiliates.

3. User Acknowledgment

By participating in the BTC Vault Sandbox, you explicitly acknowledge and agree that:

  • You waive any right or entitlement to interest, yield, staking rewards, or other returns that may be simulated or generated by the BTC Vault Sandbox smart contracts.
  • Any and all yields, revenues, or gains resulting from the operation or testing of the BTC Vault Sandbox are the exclusive property of the Company.
  • You will not receive any token allocation or retroactive airdrop for participation in the BTC Vault Sandbox.
  • The BTC Vault Sandbox does not constitute an offer to sell or a solicitation to buy securities, derivatives, or any regulated financial instrument.
  • The Company is not a bank, broker, or registered investment advisor.
  • The BTC Vault Sandbox is not insured by any deposit insurance scheme or regulatory body.
  • Participation does not create a fiduciary or custodial relationship between you and the Company.

Any payment other than the capital deposited by you in the BTC Vault Sandbox is solely at the Company’s discretion and you should not expect any present or future return, reward, or allocation for participating in this test environment.

4. Risk Disclosures

By participating in the BTC Vault Sandbox you acknowledge and accept the following risks:

  • Risk of software weaknesses: Because the BTC Vault Sandbox and any token related to it rely on the Bitcoin and/or Rootstock blockchain, any malfunction, breakdown or abandonment of the Bitcoin blockchain and/or Rootstock blockchain may have a material adverse effect on the BTC Vault Sandbox and any token related to it. Moreover, advances in cryptography, or technical advances such as the development of quantum computing, could present risks to the BTC Vault Sandbox by rendering ineffective the cryptographic consensus mechanism that underpins the Bitcoin blockchain and the Rootstock blockchain. The BTC Vault Sandbox is still in an early development stage. There is no warranty or assurance that the process for creating the BTC Vault Sandbox will be uninterrupted or error-free and there is an inherent risk that the software could contain defects, weaknesses, vulnerabilities, viruses or bugs causing, inter alia, the complete loss of funds. Funds deposited in the BTC Vault Sandbox may be irretrievably lost due to bugs, exploits, smart contract vulnerabilities, network congestion, or user error.
  • No Guarantee of Recovery: The Company cannot guarantee to recover funds lost due to technical or operational issues. Unlike bank accounts or accounts at some other financial institutions, your interaction with the BTC Vault Sandbox is uninsured, unless you specifically obtain private insurance to insure it. Thus, in the event of loss or loss of utility value, there is no public insurer or private insurance arranged by us, to offer recourse to you.
  • Risk of theft: The BTC Vault Sandbox, the underlying software application and software platform (i.e. the Bitcoin blockchain and/or the Rootstock blockchain) may be exposed to attacks by hackers or other individuals including, but not limited to, malware attacks, denial of service attacks, consensus-based attacks, Sybil attacks, smurfing and spoofing. Any such successful attacks could result in theft or loss of contributions or your funds, adversely impacting the ability to develop the BTC Vault Sandbox. Furthermore, because the BTC Vault Sandbox are based on open-source software, there is a risk that a third party or a member of the Company’s team may intentionally or unintentionally introduce weaknesses or defects into the core of the BTC Vault Sandbox, which could negatively affect your use and interaction with the protocol.
  • Experimental Nature: The Service is provided “as is”, without warranties of any kind, including implied warranties of merchantability, fitness for a particular purpose, or security.
  • Risk of losing access to tokens due to loss of private key(s), custodial error or your error: BTC Vault Sandbox can only be accessed by using a Rootstock-compatible wallet with a combination of the Contributor’s account information (address), private key and password. The private key is encrypted with a password. You acknowledge, understand and accept that if your private key or password gets lost or stolen, the obtained tokens associated with your interaction with the BTC Vault Sandbox may be unrecoverable and permanently lost. Additionally, any third party that gains access to your private key, including by gaining access to the login credentials relating to your Rootstock-compatible wallet, may be able to access the BTC Vault Sandbox. Any errors or malfunctions caused by or otherwise related to the digital wallet or vault you choose to interact with the BTC Vault Sandbox, including your own failure to properly maintain or use such digital wallet or vault, may also result in the loss of your funds.
  • Blockchain Risks: Network congestion, forks, or consensus failures may result in transaction delays, reordering, or losses. The Rootstock blockchain was designed to be linked to a single Bitcoin blockchain. Should part of the community decide to change Bitcoin consensus rules, a Bitcoin hardfork can be originated, causing two Bitcoin-like blockchains to appear. Rootstock blockchain will be pegged to only one of these chains.
  • Regulation: Regulatory changes or enforcement actions may adversely affect the BTC Vault Sandbox or your ability to interact with it, including retroactively.

You assume full responsibility and risk for your participation.

5. Compliance Obligations

To ensure compliance with applicable regulations, including Anti-Money Laundering (AML) and Know Your Customer (KYC) obligations:

  • Users depositing into the BTC Vault Sandbox must complete a KYC/AML verification process prior to your deposit. Nonetheless, we may request, at any time and at our sole discretion, that you complete KYC/AML verification, regardless of the amount deposited.
  • Users shall only deposit and/or withdraw from the BTC Vault Sandbox from or to previously whitelisted wallet addresses. Such addresses shall be provided by you during the KYC/AML verification process. You hereby expressly state that you are the sole owner of the private keys of the whitelisted addresses.
  • The Company reserves the right to request any information needed to comply with its obligations, including without limitation full legal name, date of birth, nationality, address, source of funds, and government-issued identification.
  • Failure to complete KYC/AML verification when required and/or failure to pass KYC/AML verification at our own discretion may result in restricted access or exclusion from further participation in the BTC Vault Sandbox.
  • The Company complies with all applicable sanctions lists, including OFAC, EU, and UN sanctions programs. Users from sanctioned jurisdictions are prohibited from participating.
  • You acknowledge that all transactions executed on the blockchain are public, immutable, and traceable. You understand that your wallet address and on-chain activity are visible to third parties and may be analyzed for compliance, fraud prevention, or analytics purposes.
  • You acknowledge that the Company may use blockchain analytics providers to monitor illicit or suspicious activity in compliance with AML standards.

6. User Representations and Warranties

By using the BTC Vault Sandbox, you represent and warrant that:

  1. You are at least 18 years old and legally capable of entering into binding agreements.
  2. You are the lawful owner of the digital assets you use for deposits.
  3. You are not located in or a resident of a restricted or sanctioned jurisdiction.
  4. You are using the BTC Vault Sandbox solely for testing, educational, or research purposes.
  5. You understand and accept the high-risk and experimental nature of the Service.
  6. You do not or have not engaged in activities involving items that infringe or violate any applicable law, including without limitation promote, or facilitate any illegal activities, including but not limited to money laundering, terrorist financing, fraud, or market manipulation, copyright, trademark, right of publicity or privacy or any other proprietary right under the law.
  7. You represent that you are interacting with the BTC Vault Sandbox on your own behalf and not as an agent, custodian, trustee, or intermediary for any third party.

7. Limitation of Liability

TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL WE OR ANY OF OUR OFFICERS, DIRECTORS, EMPLOYEES, CONTRACTORS, AGENTS, AFFILIATES, OR SUBSIDIARIES BE LIABLE TO YOU FOR ANY INDIRECT, PUNITIVE, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES, INCLUDING (BUT NOT LIMITED TO) DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, DATA, OR OTHER INTANGIBLE PROPERTY, ARISING OUT OF OR RELATING TO ANY ACCESS TO OR USE OF THE BTC VAULT SANDBOX.

WE WILL NOT BE RESPONSIBLE FOR ANY DAMAGE, LOSS, OR INJURY RESULTING FROM HACKING, TAMPERING, OR OTHER UNAUTHORIZED ACCESS TO OR USE OF THE BTC VAULT SANDBOX, OR FROM ANY ACCESS TO OR USE OF ANY INFORMATION OBTAINED BY ANY UNAUTHORIZED ACCESS TO OR USE OF THE BTC VAULT SANDBOX.

WE ASSUME NO LIABILITY OR RESPONSIBILITY FOR ANY: (A) ERRORS, MISTAKES, OR INACCURACIES OF CONTENT; (B) PERSONAL INJURY OR PROPERTY DAMAGE, OF ANY NATURE WHATSOEVER, RESULTING FROM ANY ACCESS TO OR USE OF THE BTC VAULT SANDBOX; (C) UNAUTHORIZED ACCESS TO OR USE OF ANY SECURE SERVER OR DATABASE IN OUR CONTROL, OR THE USE OF ANY INFORMATION OR DATA STORED THEREIN; (D) INTERRUPTION OR CESSATION OF FUNCTION RELATED TO THE BTC VAULT SANDBOX; (E) BUGS, VIRUSES, TROJAN HORSES, OR THE LIKE THAT MAY BE TRANSMITTED TO OR THROUGH THE BTC VAULT SANDBOX; (F) ERRORS OR OMISSIONS IN, OR LOSS OR DAMAGE INCURRED AS A RESULT OF, THE USE OF ANY CONTENT MADE AVAILABLE THROUGH THE BTC VAULT SANDBOX; AND (G) THE DEFAMATORY, OFFENSIVE, OR ILLEGAL CONDUCT OF ANY THIRD PARTY.

OUR AGGREGATE LIABILITY TO YOU FOR ANY CLAIMS, PROCEEDINGS, LIABILITIES, OBLIGATIONS, DAMAGES, LOSSES, OR COSTS IN AN AMOUNT EXCEEDING THE GREATER OF (I) THE AMOUNT YOU PAID TO US IN EXCHANGE FOR ACCESS TO AND USE OF THE BTC SANDBOX VAULT (IF ANY), OR (II) $1,000.00 USD TO THE MINIMUM EXTENT PERMITTED BY APPLICABLE LAW.

THIS LIMITATION OF LIABILITY APPLIES REGARDLESS OF WHETHER THE ALLEGED LIABILITY IS BASED ON CONTRACT, TORT, NEGLIGENCE, STRICT LIABILITY, OR ANY OTHER BASIS, AND EVEN IF WE HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH LIABILITY. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF CERTAIN WARRANTIES OR THE LIMITATION OR EXCLUSION OF CERTAIN LIABILITIES AND DAMAGES. ACCORDINGLY, SOME OF THE DISCLAIMERS AND LIMITATIONS SET FORTH IN THESE TERMS MAY NOT APPLY TO YOU.

NOTHING IN THESE TERMS SHALL EXCLUDE OR LIMIT ANY LIABILITY FOR FRAUD OR WILLFUL MISCONDUCT TO THE EXTENT SUCH EXCLUSION OR LIMITATION IS PROHIBITED BY APPLICABLE LAW.

8. Indemnification

You agree to hold harmless, release, defend, and indemnify us and our officers, directors, employees, contractors, agents, affiliates, and subsidiaries from and against all claims, damages, obligations, losses, liabilities, costs, and expenses (including reasonable attorneys’ fees) arising from:

  • A. Your access to and use of the BTC Sandbox Vault;
  • B. Your breach of these Terms, the rights of any third party, or any other applicable law, rule, or regulation;
  • C. Any other party’s access and use of the BTC Sandbox Vault with your assistance or using any device or account that you own or control;
  • D. Your misuse, manipulation, or interference with the BTC Sandbox Vault, including any attempt to alter, disrupt, or exploit the smart contracts or the underlying protocol;
  • E. Your violation of any applicable sanctions, anti-money laundering, counter-terrorist financing, or anti-fraud laws, or your submission of false, misleading, or incomplete information during any compliance review;
  • F. Your use of the BTC Sandbox Vault on behalf of, or for the benefit of, any third party without proper authorization or in breach of these Terms.

9. Termination and Suspension

The Company reserves the right to suspend, restrict, or terminate your access to the BTC Sandbox Vault at any time without notice, including in cases of:

  • Suspicious or non-compliant activity;
  • Incomplete KYC/AML verification;
  • Technical or operational maintenance; or
  • Discontinuation of the BTC Sandbox Vault testing program.

The Company does not guarantee that funds will be recoverable following termination, including due to smart contract immutability, upgrades, or shutdowns.

10. Governing Law and Jurisdiction

These Terms shall be governed by and construed in accordance with the laws of the British Virgin Islands. Any dispute arising from or relating to these Terms shall be subject to the exclusive jurisdiction of the courts located in the British Virgin Islands.