# Interoperability & Standards The T-REX protocol leverages established blockchain standards to ensure compatibility, security, and ease of integration within the broader blockchain ecosystem. By building on these standards, T-REX provides a robust framework for the issuance and management of security tokens. ## ERC-20: The Foundation ERC-20 is the most widely recognized token standard in the Ethereum ecosystem. It defines a set of rules that all Ethereum tokens must follow, ensuring compatibility with various platforms and services. * **Fungibility**: ERC-20 tokens are fungible, meaning each token is identical in type and value to another token. * **Interoperability**: The standard allows ERC-20 tokens to be used seamlessly across different Ethereum-based applications, exchanges, and wallets. * **Basic Functions**: ERC-20 defines basic functions such as transferring tokens, checking balances, and approving tokens as spendable by another on-chain third party. ## Enhancements in ERC-3643 T-REX Protocol While ERC-20 provides a solid foundation, the T-REX protocol extends its capabilities to meet the specific needs of security tokens. ### **Identity Standards** T-REX incorporates robust identity management standards to enforce compliance with regulatory requirements: * **ERC-734 and ERC-735**: These standards are used for identity creation and claim management. They enable the integration of verifiable credentials, ensuring that only eligible participants can hold and transfer tokens. * **ERC-734**: Focuses on managing key holders and identity-related operations. * **ERC-735**: Deals with claims, allowing third parties to issue claims about a specific identity. ### **Proxy Standards** To enhance flexibility and upgradability, T-REX uses established proxy standards: * **ERC-1822**: The Universal Upgradeable Proxy Standard (UUPS) is adapted in T-REX to manage contract upgrades. This ensures that tokens can evolve and incorporate new features without disrupting existing functionality. * **Beacon Proxy**: This standard is used to manage contract implementations efficiently. The T-REX protocol leverages the Beacon Proxy to maintain a centralized version management system, simplifying the process of contract upgrades. ## Compatibility with Existing Standards The T-REX protocol ensures full compatibility with existing token standards, allowing seamless integration into the current blockchain ecosystem: * **Interoperability with ERC-20**: Despite its additional features, T-REX tokens maintain full compatibility with ERC-20 exchanges and tools. This means that T-REX tokens can be traded and managed using existing ERC-20 infrastructure with minor modifications. * **Integration of Identity and Compliance**: The protocol's identity and compliance features are designed to work in tandem with existing standards, enhancing security and regulatory adherence without sacrificing usability. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.erc3643.org/erc-3643/overview-of-the-protocol/interoperability-and-standards.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.