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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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Our libraries provide the secure, extensible foundation for issuing, controlling, and auditing digital assets.
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| Standard / Extension | Purpose | Example Use (Stablecoin, Treasury, Defi) | Number of Deployments | Networks Supported |
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| Standard / Extension | Purpose | Example Use (Stablecoin, Tokenized Fund, Defi) | Number of Deployments | Networks Supported |
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| --- | --- | --- | --- | --- |
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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+ ($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)|
@@ -70,21 +70,21 @@ Define who can perform specific actions, when they can do so, and under what aut
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Our libraries provide flexible, auditable permissions for enforcing operational, compliance, and governance policies on-chain.
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| Implementation | Purpose | Example Use (Stablecoin, Treasury, Defi) | Number of Deployments | Networks Supported |
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| Implementation | Purpose | Example Use (Stablecoin, Tokenized Fund, Defi) | Number of Deployments | Networks Supported |
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| --- | --- | --- | --- | --- |
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| Ownable | Minimal governance model providing a single administrative authority |[Circle USDC](https://etherscan.io/address/0x43506849d7c04f9138d1a2050bbf3a0c054402dd#code#F13#L31), [BlackRock BUIDL-I](https://etherscan.io/address/0x9e2693f54831f6f52b0bb952c2935d26919a3626#code#F2#L2), [Aave](https://github.com/aave/aave-v3-periphery/blob/master/contracts/treasury/AaveEcosystemReserveController.sol#L4)| 80,000+ |[EVM](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/Ownable.sol), [Stellar](https://github.com/OpenZeppelin/stellar-contracts/tree/main/packages/access/src/ownable), [Starknet](https://github.com/OpenZeppelin/cairo-contracts/tree/main/packages/access/src/ownable), [Arbitrum Stylus](https://github.com/OpenZeppelin/rust-contracts-stylus/blob/main/contracts/src/access/ownable.rs)|
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| Access Control | Role-based governance which supports structured permissioning and multiple roles for operational teams |[Pallas Fund USDtb](https://etherscan.io/address/0xea8a763b5b1f9c9c7aea64f33947448d9e39e475#code#F17#L2), [Ondo OUSG](https://etherscan.io/address/0x1ceb44b6e515abf009e0ccb6ddafd723886cf3ff#code#F11#L2), [Aerodrome](https://github.com/aerodrome-finance/relay/blob/main/src/Relay.sol#L16)| 35,000+ |[EVM](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/AccessControl.sol), [Stellar](https://github.com/OpenZeppelin/stellar-contracts/tree/main/packages/access/src/access_control), [Starknet](https://github.com/OpenZeppelin/cairo-contracts/tree/main/packages/access/src/accesscontrol), [Arbitrum Stylus](https://github.com/OpenZeppelin/rust-contracts-stylus/tree/main/contracts/src/access/control)|
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| Access Control | Role-based governance which supports structured permissioning and multiple roles for operational teams |[Ethena USDtb](https://etherscan.io/address/0x9d6d77a21702b9afcf924983fbfb84aaaae79589#code#F17#L2), [Ondo OUSG](https://etherscan.io/address/0x1ceb44b6e515abf009e0ccb6ddafd723886cf3ff#code#F11#L2), [Aerodrome](https://github.com/aerodrome-finance/relay/blob/main/src/Relay.sol#L16)| 35,000+ |[EVM](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/AccessControl.sol), [Stellar](https://github.com/OpenZeppelin/stellar-contracts/tree/main/packages/access/src/access_control), [Starknet](https://github.com/OpenZeppelin/cairo-contracts/tree/main/packages/access/src/accesscontrol), [Arbitrum Stylus](https://github.com/OpenZeppelin/rust-contracts-stylus/tree/main/contracts/src/access/control)|
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### Upgradability
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Securely upgrade contract logic without disrupting state or user trust.
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Our libraries implement proven proxy patterns that support controlled evolution under defined governance rules.
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| Implementation | Purpose | Example Use (Stablecoin, Treasury, Defi) | Number of Deployments | Networks Supported |
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| Implementation | Purpose | Example Use (Stablecoin, Tokenized Fund, Defi) | Number of Deployments | Networks Supported |
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| --- | --- | --- | --- | --- |
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| Beacon Proxy | Coordinated upgrades across multiple contracts through a shared beacon, allowing system-wide upgrades in a single transaction. |[Sky USDS](https://etherscan.io/token/0xdc035d45d973e3ec169d2276ddab16f1e407384f#code#F4#L2), [BlackRock BUIDL-I](https://etherscan.io/token/0x6a9da2d710bb9b700acde7cb81f10f1ff8c89041#code#F4#L2)| 75,000+ |[EVM](https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/proxy/beacon), [Arbitrum Stylus](https://github.com/OpenZeppelin/rust-contracts-stylus/tree/main/contracts/src/proxy/beacon)|
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| Transparent Proxy | Administrator-managed upgrades with strict separation between users and governance |[Pallas Fund USDtb](https://etherscan.io/token/0xc139190f447e929f090edeb554d95abb8b18ac1c#code#F1#L2), [Ondo OUSG](https://etherscan.io/token/0x1b19c19393e2d034d8ff31ff34c81252fcbbee92#code#F2#L2), [Lido](https://github.com/lidofinance/core/blob/master/contracts/0.8.4/WithdrawalsManagerProxy.sol#L317)| 9,000+ |[EVM](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/proxy/transparent/TransparentUpgradeableProxy.sol)|
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| Transparent Proxy | Administrator-managed upgrades with strict separation between users and governance |[Ethena USDtb](https://etherscan.io/token/0xc139190f447e929f090edeb554d95abb8b18ac1c#code#F1#L2), [Ondo OUSG](https://etherscan.io/token/0x1b19c19393e2d034d8ff31ff34c81252fcbbee92#code#F2#L2), [Lido](https://github.com/lidofinance/core/blob/master/contracts/0.8.4/WithdrawalsManagerProxy.sol#L317)| 9,000+ |[EVM](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/proxy/transparent/TransparentUpgradeableProxy.sol)|
@@ -93,9 +93,9 @@ Libraries for precision, reliability, and data integrity across all operations.
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Our libraries provide functions for cryptography, math, and data integrity, safeguarding every calculation and transaction on-chain.
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| Implementation | Purpose | Example Use (Stablecoin, Treasury, Defi) | Number of Deployments | Networks Supported |
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| Implementation | Purpose | Example Use (Stablecoin, Tokenized Fund, Defi) | Number of Deployments | Networks Supported |
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| --- | --- | --- | --- | --- |
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| Data Integrity | Safe primitives such as storage, context, and verification to prevent data corruption or manipulation |[Pallas Fund USDtb](https://etherscan.io/address/0xea8a763b5b1f9c9c7aea64f33947448d9e39e475#code#F14#L2), [BlackRock BUIDL-I](https://etherscan.io/address/0x9e2693f54831f6f52b0bb952c2935d26919a3626#code#F16#L2), [Graph Protocol](https://github.com/graphprotocol/contracts/blob/109e84c71fd01f2cb51f8582bb43603881380072/packages/token-distribution/contracts/MinimalProxyFactory.sol#L5)| 150,000+ |[EVM](https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/utils), [Stellar](https://github.com/OpenZeppelin/stellar-contracts/tree/main/packages/contract-utils/src), [Starknet](https://github.com/OpenZeppelin/cairo-contracts/tree/main/packages/utils/src)|
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| Data Integrity | Safe primitives such as storage, context, and verification to prevent data corruption or manipulation |[Ethena USDtb](https://etherscan.io/address/0x9d6d77a21702b9afcf924983fbfb84aaaae79589#code#F13#L2), [BlackRock BUIDL-I](https://etherscan.io/address/0x9e2693f54831f6f52b0bb952c2935d26919a3626#code#F16#L2), [Graph Protocol](https://github.com/graphprotocol/contracts/blob/109e84c71fd01f2cb51f8582bb43603881380072/packages/token-distribution/contracts/MinimalProxyFactory.sol#L5)| 150,000+ |[EVM](https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/utils), [Stellar](https://github.com/OpenZeppelin/stellar-contracts/tree/main/packages/contract-utils/src), [Starknet](https://github.com/OpenZeppelin/cairo-contracts/tree/main/packages/utils/src)|
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| Math | Ensures precision arithmetic and overflow protection for on-chain calculations |[Ethena USDe](https://etherscan.io/token/0x4c9edd5852cd905f086c759e8383e09bff1e68b3#code#F19#L2), [BlackRock BUIDL-I](https://etherscan.io/address/0x9e2693f54831f6f52b0bb952c2935d26919a3626#code#F14#L2), [Morpho](https://github.com/morpho-org/metamorpho/blob/main/src/MetaMorpho.sol#L20)| 65,000+ |[EVM](https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/utils/math), [Stellar](https://github.com/OpenZeppelin/stellar-contracts/tree/main/packages/contract-utils/src/math), [Starknet](https://github.com/OpenZeppelin/cairo-contracts/tree/main/packages/utils/src)|
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| Cryptography | Safe primitives such as ECDSA, Merkle proofs, and signature verification for secure identity and transaction validation |[Circle USDC](https://etherscan.io/address/0x43506849d7c04f9138d1a2050bbf3a0c054402dd#code#F19#L28), [Superstate USTB](https://etherscan.io/address/0x1f50a1ee0ec8275d0c83b7bb08896b4b47d6e8c4#code#L301), [Graph Protocol](https://github.com/graphprotocol/contracts/blob/109e84c71fd01f2cb51f8582bb43603881380072/packages/horizon/contracts/utilities/Authorizable.sol#L6)| 45,000+ |[EVM,](https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/utils/cryptography)[Stellar](https://github.com/OpenZeppelin/stellar-contracts/tree/main/packages/contract-utils/src/crypto), [Starknet](https://github.com/OpenZeppelin/cairo-contracts/tree/main/packages/utils/src/cryptography)|
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