# OUSD Registry

Most of Origin's contracts are upgradable via a well-known proxy wrapper and an implementation contract.

<figure><img src="https://1918834050-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FwYZKZadoeIzI7JRmgFmu%2Fuploads%2FIcN0YY6RZ1MwNr1gzIC2%2FousdContracts.png?alt=media&#x26;token=5fc4cca5-b3f9-46a9-a4eb-623308eafcbc" alt=""><figcaption><p>OUSD Contract Dependencies</p></figcaption></figure>

#### Ethereum

<table><thead><tr><th width="258">Contract</th><th>Address</th></tr></thead><tbody><tr><td>Origin Dollar (ERC-20)</td><td><a href="https://etherscan.io/address/0x2a8e1e676ec238d8a992307b495b45b3feaa5e86#code">0x2A8e1E676Ec238d8A992307B495b45B3fEAa5e86</a></td></tr><tr><td>Wrapped OUSD (ERC-4626)</td><td><a href="https://etherscan.io/token/0xD2af830E8CBdFed6CC11Bab697bB25496ed6FA62#code">0xD2af830E8CBdFed6CC11Bab697bB25496ed6FA62</a></td></tr><tr><td>Vault</td><td><a href="https://etherscan.io/address/0xe75d77b1865ae93c7eaa3040b038d7aa7bc02f70#code">0xE75D77B1865Ae93c7eaa3040B038D7aA7BC02F70</a></td></tr><tr><td>Curve USDC AMO Strategy</td><td><a href="https://etherscan.io/address/0x26a02ec47ACC2A3442b757F45E0A82B8e993Ce11">0x26a02ec47ACC2A3442b757F45E0A82B8e993Ce11</a></td></tr><tr><td>Morpho V2 Strategy</td><td><a href="https://etherscan.io/address/0x3643cafA6eF3dd7Fcc2ADaD1cabf708075AFFf6e">0x3643cafA6eF3dd7Fcc2ADaD1cabf708075AFFf6e</a></td></tr><tr><td>Cross-Chain Strategy (Base)</td><td><a href="https://etherscan.io/address/0xB1d624fc40824683e2bFBEfd19eB208DbBE00866#code">Ethereum</a> <a href="https://basescan.org/address/0xB1d624fc40824683e2bFBEfd19eB208DbBE00866">Base</a></td></tr><tr><td>Cross-Chain Strategy (HyperEVM)</td><td><a href="https://etherscan.io/address/0xE0228DB13F8C4Eb00fD1e08e076b09eF5cD0EA1e">Ethereum</a> <a href="https://hyperevmscan.io/address/0xE0228DB13F8C4Eb00fD1e08e076b09eF5cD0EA1e">HyperEVM</a></td></tr><tr><td>Oracle Router</td><td><a href="https://etherscan.io/address/0x36CFB852d3b84afB3909BCf4ea0dbe8C82eE1C3c">0x36CFB852d3b84afB3909BCf4ea0dbe8C82eE1C3c</a></td></tr><tr><td>Curve Pool Booster Factory</td><td><a href="https://etherscan.io/address/0x8A8809D67E3193486dCF94Ad023978cBceed1723">0x8A8809D67E3193486dCF94Ad023978cBceed1723</a></td></tr><tr><td>CoW Harvester</td><td><a href="https://etherscan.io/address/0xD400341aEfED0BC75176714cFdE82e8BDAA2D3b8">0xD400341aEfED0BC75176714cFdE82e8BDAA2D3b8</a></td></tr></tbody></table>

OUSD is backed by the following collateral assets:

<table data-header-hidden><thead><tr><th width="260">Token</th><th>Address</th></tr></thead><tbody><tr><td><a href="https://etherscan.io/address/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48">USDC</a></td><td><a href="https://etherscan.io/address/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48#code">0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48</a></td></tr></tbody></table>

The following Chainlink oracles protect the vault if a backing asset loses value. They also offer slippage protection when harvesting rewards tokens.

<table><thead><tr><th width="260">Pair</th><th>Address</th></tr></thead><tbody><tr><td><a href="https://data.chain.link/ethereum/mainnet/stablecoins/usdc-usd">USDC/USD</a></td><td><a href="https://etherscan.io/address/0x8fffffd4afb6115b954bd326cbe7b4ba576818f6#code">0x8fFfFfd4AfB6115b954Bd326cbe7B4BA576818f6</a></td></tr></tbody></table>

#### Deprecated

<table><thead><tr><th width="259">Contract</th><th>Address</th></tr></thead><tbody><tr><td>OUSD Compensation</td><td><a href="https://etherscan.io/address/0x9c94df9d594ba1eb94430c006c269c314b1a8281#code">0x9C94df9d594BA1eb94430C006c269C314B1A8281</a></td></tr><tr><td>Old OUSD Vault</td><td><a href="https://etherscan.io/address/0x277e80f3e14e7fb3fc40a9d6184088e0241034bd#code">0x277e80f3E14E7fB3fc40A9d6184088e0241034bD</a></td></tr><tr><td>Old Buyback (1 of 2)</td><td><a href="https://etherscan.io/address/0x77314eb392b2be47c014cde0706908b3307ad6a9#code">0x77314EB392b2be47C014cde0706908b3307Ad6a9</a></td></tr><tr><td>Old Buyback (2 of 2)</td><td><a href="https://etherscan.io/address/0x6c5cdfb47150efc52072cb93eea1e0f123529748#code">0x6C5cdfB47150EFc52072cB93Eea1e0F123529748</a></td></tr><tr><td>Compound Strategy</td><td><a href="https://etherscan.io/address/0x9c459eeb3fa179a40329b81c1635525e9a0ef094#code">0x9c459eeb3FA179a40329b81C1635525e9A0Ef094</a></td></tr><tr><td>Convex DAI+USDC+USDT Strategy</td><td><a href="https://etherscan.io/address/0xea2ef2e2e5a749d4a66b41db9ad85a38aa264cb3#code">0xEA2Ef2e2E5A749D4A66b41Db9aD85a38Aa264cb3</a></td></tr><tr><td>Convex LUSD+3Crv Strategy</td><td><a href="https://etherscan.io/address/0x7a192dd9cc4ea9bdedec9992df74f1da55e60a19#code">0x7A192DD9Cc4Ea9bdEdeC9992df74F1DA55e60a19</a></td></tr><tr><td>Morpho Compound Strategy</td><td><a href="https://etherscan.io/address/0x5a4eee58744d1430876d5ca93cab5ccb763c037d#code">0x5A4eEe58744D1430876d5cA93cAB5CcB763C037D</a></td></tr><tr><td>Convex OUSD+3Crv (AMO)</td><td><a href="https://etherscan.io/address/0x89eb88fedc50fc77ae8a18aad1ca0ac27f777a90#code">0x89Eb88fEdc50FC77ae8a18aAD1cA0ac27f777a90</a></td></tr><tr><td>Aave Strategy</td><td><a href="https://etherscan.io/address/0x5e3646a1db86993f73e6b74a57d8640b69f7e259#code">0x5e3646A1Db86993f73E6b74A57D8640B69F7e259</a></td></tr><tr><td>Morpho Aave Strategy</td><td><a href="https://etherscan.io/address/0x79f2188ef9350a1dc11a062cca0abe90684b0197#code">0x79F2188EF9350A1dC11A062cca0abE90684b0197</a></td></tr><tr><td>Flux Strategy</td><td><a href="https://etherscan.io/address/0x76bf500b6305dc4ea851384d3d5502f1c7a0ed44#code">0x76Bf500B6305Dc4ea851384D3d5502f1C7a0ED44</a></td></tr><tr><td>Maker DSR Strategy</td><td><a href="https://etherscan.io/address/0x6b69b755c629590ed59618a2712d8a2957ca98fc#code">0x6b69B755C629590eD59618A2712d8a2957CA98FC</a></td></tr><tr><td>Morpho Gauntlet Prime USDT Strategy</td><td><a href="https://etherscan.io/address/0xe3ae7C80a1B02Ccd3FB0227773553AEB14e32F26">0xe3ae7C80a1B02Ccd3FB0227773553AEB14e32F26</a></td></tr><tr><td>SSR (Sky Saving Rate) Strategy</td><td><a href="https://etherscan.io/address/0x5Bd9AF9c2506D29B6d79cB878284A270190EaEAa">0x5Bd9AF9c2506D29B6d79cB878284A270190EaEAa</a></td></tr><tr><td>Harvester</td><td><a href="https://etherscan.io/address/0x21fb5812d70b3396880d30e90d9e5c1202266c89#code">0x21Fb5812D70B3396880D30e90D9e5C1202266c89</a></td></tr><tr><td>Buyback</td><td><a href="https://etherscan.io/address/0xd7b28d06365b85933c64e11e639ea0d3bc0e3bab#code">0xD7B28d06365b85933c64E11e639EA0d3bC0e3BaB</a></td></tr><tr><td>Flipper</td><td><a href="https://etherscan.io/address/0xcecad69d7d4ed6d52efcfa028af8732f27e08f70#code">0xcecaD69d7D4Ed6D52eFcFA028aF8732F27e08F70</a></td></tr><tr><td>Dripper</td><td><a href="https://etherscan.io/address/0x80c898ae5e56f888365e235ceb8cea3eb726cb58#code">0x80c898ae5e56f888365e235ceb8cea3eb726cb58</a></td></tr><tr><td>Morpho Steakhouse USDC Strategy</td><td><a href="https://etherscan.io/address/0x603CDEAEC82A60E3C4A10dA6ab546459E5f64Fa0">0x603CDEAEC82A60E3C4A10dA6ab546459E5f64Fa0</a></td></tr><tr><td>Morpho Gauntlet Prime USDC Strategy</td><td><a href="https://etherscan.io/address/0x2B8f37893EE713A4E9fF0cEb79F27539f20a32a1">0x2B8f37893EE713A4E9fF0cEb79F27539f20a32a1</a></td></tr></tbody></table>