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‎content/impact/chain-abstraction-at-openzeppelin.mdx‎ renamed to ‎content/impact/chain-abstraction.mdx‎

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@@ -4,168 +4,167 @@ title: Chain Abstraction at OpenZeppelin
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OpenZeppelin is enabling seamless interoperability across chains and account systems. Our work focuses on building the secure primitives for cross-chain messaging, intent-based execution, and unified account experiences, creating a world where users and assets move freely across ecosystems with complexity abstracted away from users.
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# Ecosystem Contributions
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## Ecosystem Contributions
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We have partnered with ecosystems and projects to deliver contracts libraries and tooling for cross-chain coordination and smart accounts.
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<Cards>
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<Card title="Open Intents Framework" href="https://github.com/openintentsframework">
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Contracts libraries and solvers for cross-chain intents
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</Card>
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<Card title="Open Intents Framework" href="https://github.com/openintentsframework">
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Contracts libraries in Solidity and solvers for cross-chain intents
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</Card>
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<Card title="Axelar" href="https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/crosschain">
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Contracts libraries for cross-chain messaging
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</Card>
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<Card title="Axelar" href="https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/crosschain">
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Contracts libraries for cross-chain messaging in Solidity
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</Card>
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<Card title="EVM" href="https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/account">
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Contracts libraries for smart accounts
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</Card>
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<Card title="Ethereum & EVM" href="https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/account">
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Contracts libraries for modular smart accounts in Solidity
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</Card>
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<Card title="zkEmail" href="https://github.com/OpenZeppelin/openzeppelin-community-contracts/tree/master/contracts/utils/cryptography">
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Cryptography contracts libraries for transactions and social recovery using email
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</Card>
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<Card title="zkEmail" href="https://github.com/OpenZeppelin/openzeppelin-community-contracts/tree/master/contracts/utils/cryptography">
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Cryptography contracts libraries in Solidity for transactions and social recovery using email
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</Card>
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<Card title="Stellar" href="https://github.com/OpenZeppelin/stellar-contracts/tree/main/packages/accounts">
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Contracts libraries for smart accounts
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</Card>
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<Card title="Stellar" href="https://github.com/OpenZeppelin/stellar-contracts/tree/main/packages/accounts">
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Contracts libraries for smart accounts in Soroban
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</Card>
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<Card title="Starknet" href="https://github.com/OpenZeppelin/cairo-contracts/tree/main/packages/account">
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Contracts libraries for smart accounts
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</Card>
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<Card title="Starknet" href="https://github.com/OpenZeppelin/cairo-contracts/tree/main/packages/account">
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Contracts libraries for smart accounts in Cairo
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</Card>
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</Cards>
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<br/>
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# Cross-Chain Intents
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## Cross-Chain Intents
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Universal format for expressing and fulfilling user actions across chains.
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## Use Cases
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### Use Cases
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### Simplified Onboarding to Chains and Apps
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#### Simplified Onboarding to Chains and Apps
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Onboard users by automating gas, approvals, and cross chain setup, allowing users to interact with any app or network instantly without prior configuration.
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### Abstracted Gas and Settlement
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#### Abstracted Gas and Settlement
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Allows operation across multiple chains without managing native gas tokens or complex bridge flows.
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### Token Bridging and Swapping
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#### Token Bridging and Swapping
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Enable seamless asset transfers and swaps across chains, abstracting away bridge risks and fragmented liquidity.
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### Universal Balances
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#### Universal Balances
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Users can maintain a single cross chain balance, allowing applications to fetch, display, and transact from unified liquidity sources.
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## Standards
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### Standards
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### ERC-7683: Cross Chain Intents (draft)
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#### ERC-7683: Cross Chain Intents (draft)
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A [standard](https://eips.ethereum.org/EIPS/eip-7683) that enables cross chain value transfer using a standard api.
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OpenZeppelin is a contributor to and leading the redesign of the ERC through the [Open Intents Framework](https://www.openintents.xyz/The-Open-Intents-Framework-Intents-As-A-Public-Good-1976d35200d680fb8215f28775e067ec) and is building contracts libraries in the [Open Intents Framework Contracts Repo](https://github.com/openintentsframework/oif-contracts).
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### ERC-7888: Cross Chain Broadcaster (draft)
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#### ERC-7888: Cross Chain Broadcaster (draft)
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A [standard](https://eips.ethereum.org/EIPS/eip-7888) that enables cross chain messaging using storage proofs.
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OpenZeppelin is a contributor to the ERC through the [Open Intents Framework](https://www.openintents.xyz/The-Open-Intents-Framework-Intents-As-A-Public-Good-1976d35200d680fb8215f28775e067ec) and is building contracts libraries in the [Open Intents Framework Broadcaster Repo](https://github.com/openintentsframework/broadcaster).
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## Associations
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### Associations
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### Open Intents Framework
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#### Open Intents Framework
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The [group](https://www.openintents.xyz/) is building a modular, open source framework for building and deploying intent product experiences by providing ready-to-use, protocol-agnostic features for solvers, interop providers, and cross-chain builders.
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OpenZeppelin is a [member](https://www.openintents.xyz/#1976d35200d68051bfe5f0bdb3ced9bc) with many major organizations.
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# Cross-Chain Messaging
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## Cross-Chain Messaging
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Common interface for sending and receiving messages across chains.
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## Use Cases
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### Use Cases
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### State Synchronization for Multi-Chain Apps
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#### State Synchronization for Multi-Chain Apps
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Use single controller contract or governance action to coordinate updates on multiple chains.
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### Token Bridges
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#### Token Bridges
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Enables verifiable message passing between bridge contracts, ensuring consistent state and transfer logic across multiple chains without relying on trusted intermediaries.
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### Intent Settlement
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#### Intent Settlement
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Facilitates secure delivery and confirmation of intent execution results across chains, allowing applications to finalize actions and synchronize states.
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## Standards
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### Standards
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### ERC-7786: Cross Chain Messaging Gateway (last call)
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#### ERC-7786: Cross Chain Messaging Gateway (last call)
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A [standard](https://eips.ethereum.org/EIPS/eip-7786) that enables cross-chain messaging via a universal gateway interface.
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OpenZeppelin co-authored the standard with Axelar and is building contracts libraries in the [OpenZeppelin Community Contracts Repo](https://github.com/OpenZeppelin/openzeppelin-community-contracts/tree/master/contracts/crosschain).
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# Smart Accounts
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## Smart Accounts
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Composable architecture that enables customizable modules to support secure and extensible account functionality.
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## Use Cases
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### Use Cases
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### Gasless Transactions
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#### Gasless Transactions
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Allow users to interact with apps without holding native tokens, enabling seamless onboarding.
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### Social Recovery
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#### Social Recovery
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Allow trusted guardians to securely restore access to accounts without centralized intermediaries.
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### Keyless Signatures
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#### Keyless Signatures
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Authenticate and approve transactions using biometrics, hardware modules, or passkeys instead of a traditional private key.
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## Standards
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### Standards
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### **ERC-4337: Account Abstraction Using Alt Mempool (final)**
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#### ERC-4337: Account Abstraction Using Alt Mempool (final)
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A [standard](https://eips.ethereum.org/EIPS/eip-4337) that enables account abstraction using an alternative mempool.
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OpenZeppelin has built contracts libraries for modular smart accounts in the [OpenZeppelin Contracts Repo](https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/account) and [Wizard](https://wizard.openzeppelin.com/#account) integration.
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### ERC-7579: Minimal Modular Smart Accounts (draft)
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#### ERC-7579: Minimal Modular Smart Accounts (draft)
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A [standard](https://eips.ethereum.org/EIPS/eip-7579) that enables interoperability between accounts and modules.
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OpenZeppelin has built contracts libraries for modules in the [OpenZeppelin Community Contracts Repo](https://github.com/OpenZeppelin/openzeppelin-community-contracts/tree/master/contracts/account/modules) and [Wizard](https://wizard.openzeppelin.com/#account) integration.
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### EIP-7702: Set Code for EOAs (complete)
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#### EIP-7702: Set Code for EOAs (complete)
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A [protocol standard](https://eips.ethereum.org/EIPS/eip-7702) that enables EOA’s to adopt smart contract capabilities using a new transaction type to set code in their account.
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OpenZeppelin has built contracts libraries for modules in the [OpenZeppelin Community Contracts Repo](https://github.com/OpenZeppelin/openzeppelin-community-contracts/tree/master/contracts/account/modules) and [Wizard](https://wizard.openzeppelin.com/#account) integration.
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### ERC-7913: Signature Verifiers (draft)
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#### ERC-7913: Signature Verifiers (draft)
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A [standard](https://eips.ethereum.org/EIPS/eip-7913) that enables signature verification for address-less keys (e.g. email, non-ethereum cryptographic curves).
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OpenZeppelin authored the standard and is building contracts libraries in the [OpenZeppelin Contracts Repo](https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/utils/cryptography/verifiers).
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# zkEmail
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## zkEmail
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Ownership of accounts using email.
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## Use Cases
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### Use Cases
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### Sign Transactions Using Email
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#### Send Crypto Using Only Email Address
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Users can authorize transactions (e.g. send money, DAO voting, any blockchain transaction) by proving control of their email address with no private key management required. Email never revealed!
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### Social Recovery Using Email
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#### Recover Account Using Email Gaurdians
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Lost keys can be restored by proving control of an email account, enabling user-friendly recovery.
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## Standards
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### Standards
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### **ERC-7969: DomainKeys Identified Mail (DKIM) Registry (draft)**
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#### ERC-7969: DomainKeys Identified Mail (DKIM) Registry (draft)
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A [standard](https://eips.ethereum.org/EIPS/eip-7969) that enables trustless email ownership verification using a DKIM restistry.
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‎content/impact/openzeppelin-contracts-for-financial-institutions.mdx‎ renamed to ‎content/impact/contracts-for-financial-institutions.mdx‎

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---
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title: OpenZeppelin Contracts for Financial Institutions
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description: something
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---
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The trusted foundation powering the global digital asset economy.
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OpenZeppelin Contracts is the trusted foundation powering the global digital asset economy.
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Used by the world’s leading stablecoin issuers, asset managers, and on-chain funds, OpenZeppelin provides the security-audited, production-proven contracts trusted to secure billions in value.
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## **Powering Top Institutions**
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### **Stablecoins**
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### **Tokenized U.S. Treasuries**
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Trusted by 8 of the top 10 stablecoins by market cap.
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Trusted by 10 of the top 10 tokenized U.S Treasuries by market cap.
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The secure foundation behind the digital assets that power payments, settlement, and global liquidity.
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The standard for compliant, programmable representation of the world’s most trusted asset class.
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| **Stablecoin** | **Tokens** | **Permissions** | **Upgradeability** | **Utilities** |
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| **Tokenized U.S. Treasury** | **Tokens** | **Permissions** | **Upgradeability** | **Utilities** |
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| --- | --- | --- | --- | --- |
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| Circle USDC | 🪙 | 🔐 | ♻️ | 🧰 |
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| Sky USDS | | | ♻️ | 🧰 |
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| Ethena USDe | 🪙 | 🔐 | | 🧰 |
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| Pallas Fund USDtb | 🪙 | 🔐 | ♻️ | 🧰 |
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| First Digital FDUSD | 🪙 | 🔐 | ♻️ | 🧰 |
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| PayPal PYUSD | | 🔐 | ♻️ | 🧰 |
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| Usual USD0 | 🪙 | 🔐 | ♻️ | 🧰 |
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| Ripple RLUSD | 🪙 | 🔐 | ♻️ | 🧰 |
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| [BlackRock USD Institutional Digital Liquidity Fund - I Class (BUIDL-I)](https://etherscan.io/token/0x6a9da2d710bb9b700acde7cb81f10f1ff8c89041#code) | 🪙 | 🔐 | ♻️ | 🧰 |
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| [Ondo Short-Term U.S. Government Bond Fund (OUSG)](https://etherscan.io/token/0x1b19c19393e2d034d8ff31ff34c81252fcbbee92#code) | 🪙 | 🔐 | ♻️ | 🧰 |
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| [Superstate Short Duration US Government Securities Fund (USTB)](https://etherscan.io/token/0x43415eb6ff9db7e26a15b704e7a3edce97d31c4e#code) | 🪙 | 🔐 | ♻️ | 🧰 |
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| [Janus Henderson Anemoy Treasury Fund (JTRSY)](https://etherscan.io/token/0x8c213ee79581ff4984583c6a801e5263418c4b86#code) | 🪙 | | | 🧰 |
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| [Ondo U.S. Dollar Yield (USDY)](https://etherscan.io/token/0x96f6ef951840721adbf46ac996b59e0235cb985c#code) | 🪙 | 🔐 | ♻️ | 🧰 |
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| [BlackRock USD Institutional Digital Liquidity Fund (BUIDL)](https://etherscan.io/token/0x7712c34205737192402172409a8f7ccef8aa2aec#code) | 🪙 | | | 🧰 |
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| [Circle US Yield Coin (USYC)](https://etherscan.io/token/0x136471a34f6ef19fe571effc1ca711fdb8e49f2b#code) | 🪙 | 🔐 | ♻️ | 🧰 |
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| [WisdomTree Government Money Market Digital Fund (WTGXX)](https://etherscan.io/token/0x1fecf3d9d4fee7f2c02917a66028a48c6706c179#code) | | 🔐 | | 🧰 |
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| [OpenEden T-Bills (TBILL)](https://etherscan.io/token/0xdd50c053c096cb04a3e3362e2b622529ec5f2e8a#code) | 🪙 | 🔐 | ♻️ | 🧰 |
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| [Franklin OnChain U.S. Government Money Fund (BENJI)](https://etherscan.io/token/0x3ddc84940ab509c11b20b76b466933f40b750dc9#code) | | 🔐 | ♻️ | 🧰 |
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### **Tokenized U.S. Treasuries**
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### **Stablecoins**
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Trusted by 10 of the top 10 tokenized U.S Treasuries by market cap.
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Trusted by 8 of the top 10 stablecoins by market cap.
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The standard for compliant, programmable representation of the world’s most trusted asset class.
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The secure foundation behind the digital assets that power payments, settlement, and global liquidity.
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| **Tokenized U.S. Treasury** | **Tokens** | **Permissions** | **Upgradeability** | **Utilities** |
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| **Stablecoin** | **Tokens** | **Permissions** | **Upgradeability** | **Utilities** |
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| BlackRock USD Institutional Digital Liquidity Fund - I Class (BUIDL-I) | 🪙 | 🔐 | ♻️ | 🧰 |
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| Ondo Short-Term U.S. Government Bond Fund (OUSG) | 🪙 | 🔐 | ♻️ | 🧰 |
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| Superstate Short Duration US Government Securities Fund (USTB) | 🪙 | 🔐 | ♻️ | 🧰 |
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| Janus Henderson Anemoy Treasury Fund (JTRSY) | 🪙 | | | 🧰 |
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| Ondo U.S. Dollar Yield (USDY) | 🪙 | 🔐 | ♻️ | 🧰 |
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| BlackRock USD Institutional Digital Liquidity Fund (BUIDL) | 🪙 | | | 🧰 |
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| Circle US Yield Coin (USYC) | 🪙 | 🔐 | ♻️ | 🧰 |
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| WisdomTree Government Money Market Digital Fund (WTGXX) | | 🔐 | | 🧰 |
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| OpenEden T-Bills (TBILL) | 🪙 | 🔐 | ♻️ | 🧰 |
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| Franklin OnChain U.S. Government Money Fund (BENJI) | | 🔐 | ♻️ | 🧰 |
38+
| [Circle USDC](https://etherscan.io/token/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48#code) | 🪙 | 🔐 | ♻️ | 🧰 |
39+
| [Sky USDS](https://etherscan.io/token/0xdc035d45d973e3ec169d2276ddab16f1e407384f#code) | | | ♻️ | 🧰 |
40+
| [Ethena USDe](https://etherscan.io/token/0x4c9edd5852cd905f086c759e8383e09bff1e68b3#code) | 🪙 | 🔐 | | 🧰 |
41+
| [Pallas Fund USDtb](https://etherscan.io/token/0xc139190f447e929f090edeb554d95abb8b18ac1c#code) | 🪙 | 🔐 | ♻️ | 🧰 |
42+
| [First Digital Labs FDUSD](https://etherscan.io/token/0xc5f0f7b66764f6ec8c8dff7ba683102295e16409#code) | 🪙 | 🔐 | ♻️ | 🧰 |
43+
| [PayPay PYUSD](https://etherscan.io/token/0x6c3ea9036406852006290770bedfcaba0e23a0e8#code) | | 🔐 | ♻️ | 🧰 |
44+
| [Usual USD0](https://etherscan.io/token/0x73a15fed60bf67631dc6cd7bc5b6e8da8190acf5#code) | 🪙 | 🔐 | ♻️ | 🧰 |
45+
| [Ripple RLUSD](https://etherscan.io/token/0x8292bb45bf1ee4d140127049757c2e0ff06317ed#code) | 🪙 | 🔐 | ♻️ | 🧰 |
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## Battle Tested Contracts
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| Standard / Extension | Purpose | Example Use (Stablecoin, Treasury, Defi) | Number of Deployments | Networks Supported |
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| Fungible Tokens (ERC-20) | Base standard for digital assets | [Circle USDC](https://etherscan.io/address/0x43506849d7c04f9138d1a2050bbf3a0c054402dd#code#F17#L23), [Ondo OUSG](https://etherscan.io/address/0x1ceb44b6e515abf009e0ccb6ddafd723886cf3ff#code#F12#L2), [Lido](https://github.com/lidofinance/core/blob/005b0876d6594b7f7864e0577cdaa44eff115b73/contracts/0.8.9/WithdrawalVault.sol#L9) | 150,000+
61-
(over $30 trillion in total value transferred!) | [EVM](https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/token/ERC20), [Stellar](https://github.com/OpenZeppelin/stellar-contracts/tree/main/packages/tokens/src/fungible), [Starknet](https://github.com/OpenZeppelin/cairo-contracts/tree/main/packages/token/src/erc20), [Arbitrum Stylus](https://github.com/OpenZeppelin/rust-contracts-stylus/tree/main/contracts/src/token/erc20) |
59+
| Fungible Tokens (ERC-20) | Base standard for digital assets | [Circle USDC](https://etherscan.io/address/0x43506849d7c04f9138d1a2050bbf3a0c054402dd#code#F17#L23), [Ondo OUSG](https://etherscan.io/address/0x1ceb44b6e515abf009e0ccb6ddafd723886cf3ff#code#F12#L2), [Lido](https://github.com/lidofinance/core/blob/005b0876d6594b7f7864e0577cdaa44eff115b73/contracts/0.8.9/WithdrawalVault.sol#L9) | 150,000+ ($30 trillion+ in total value transferred!) | [EVM](https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/token/ERC20), [Stellar](https://github.com/OpenZeppelin/stellar-contracts/tree/main/packages/tokens/src/fungible), [Starknet](https://github.com/OpenZeppelin/cairo-contracts/tree/main/packages/token/src/erc20), [Arbitrum Stylus](https://github.com/OpenZeppelin/rust-contracts-stylus/tree/main/contracts/src/token/erc20) |
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| Permit (ERC-2612) | Gasless transfer approvals through signatures to streamline user experience | [Ethena USDe](https://etherscan.io/token/0x4c9edd5852cd905f086c759e8383e09bff1e68b3#code#F4#L2), [BlackRock BUIDL-I](https://etherscan.io/address/0x9e2693f54831f6f52b0bb952c2935d26919a3626#code#F10#L2), [Optimism](https://github.com/ethereum-optimism/optimism/blob/3a34b538a190547e99a5571f3d02fc72d9ccb4ca/packages/contracts-bedrock/src/universal/OptimismMintableERC20.sol#L6) | 35,000+ | [EVM](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/extensions/ERC20Permit.sol), [Starknet](https://github.com/OpenZeppelin/cairo-contracts/blob/main/packages/token/src/erc20/snip12_utils/permit.cairo), [Arbitrum Stylus](https://github.com/OpenZeppelin/rust-contracts-stylus/blob/main/contracts/src/token/erc20/extensions/permit.rs) |
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| Metadata | Provide information about the token, including name, symbol, and decimals | [Ethena USDe](https://etherscan.io/token/0x4c9edd5852cd905f086c759e8383e09bff1e68b3#code#F8#L2), [Ondo OUSG](https://etherscan.io/address/0x1ceb44b6e515abf009e0ccb6ddafd723886cf3ff#code#F15#L2), [Uniswap](https://github.com/Uniswap/v4-periphery/blob/main/src/libraries/SafeCurrencyMetadata.sol#L4) | 30,000+ | [EVM](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/extensions/IERC20Metadata.sol), [Arbitrum Stylus](https://github.com/OpenZeppelin/rust-contracts-stylus/blob/main/contracts/src/token/erc20/extensions/metadata.rs) |
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| Pausable | Pause contract or transfers during emergencies or upgrades to reduce operational and systemic risk | [First Digital Labs FDUSD](https://etherscan.io/address/0xda1814d75ef1c42d0a4e6abe0d43d49a1d300c8d#code#F5#L2), [Ondo USDY](https://etherscan.io/address/0xea0f7eebdc2ae40edfe33bf03d332f8a7f617528#code#F17#L2), [Morpho](https://github.com/morpho-org/idle-tranches-morpho/blob/43e6e0fb44e2b61f1429c3e23d1221179e8ba108/contracts/StakingRewards.sol#L6) | 17,000+ | [EVM](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/extensions/ERC20Pausable.sol), [Stellar](https://github.com/OpenZeppelin/stellar-contracts/tree/main/packages/contract-utils/src/pausable), [Starknet](https://github.com/OpenZeppelin/cairo-contracts/blob/main/packages/security/src/pausable.cairo) |

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