Unlocking PYUSD’s Smart Contract Secrets: Balancing Compliance and Innovation [With code snippets]
<h1>Introduction</h1>
<p>In the realm of smart contracts, the PYUSDI implementation contract stands out with its versatile features. It handles an ERC20 token that can be paused, minted, and burned. It’s controlled by a central <strong>SupplyController</strong>. The contract also includes ways to protect assets, control supply, and delegate transfers. This article provides a straightforward breakdown of what the contract does and points out potential risks.</p>
<p><img alt="" src="https://miro.medium.com/v2/resize:fit:700/0*IwqhwpSqTS8Yxxfo" style="height:525px; width:700px" /></p>
<p>Photo by <a href="https://unsplash.com/@asyfaul?utm_source=medium&utm_medium=referral" rel="noopener ugc nofollow" target="_blank">Muhammad Asyfaul</a> on <a href="https://unsplash.com/?utm_source=medium&utm_medium=referral" rel="noopener ugc nofollow" target="_blank">Unsplash</a></p>
<h1>Sources</h1>
<h2><strong>Proxy contract address</strong></h2>
<p><a href="https://etherscan.io/address/0x6c3ea9036406852006290770bedfcaba0e23a0e8#code" rel="noopener ugc nofollow" target="_blank">https://etherscan.io/address/0x6c3ea9036406852006290770bedfcaba0e23a0e8#code</a></p>
<h2><strong>Implementation contract address</strong></h2>
<p><a href="https://etherscan.io/address/0xe17b8adf8e46b15f3f9ab4bb9e3b6e31db09126e#code" rel="noopener ugc nofollow" target="_blank">https://etherscan.io/address/0xe17b8adf8e46b15f3f9ab4bb9e3b6e31db09126e#code</a></p>
<h2>GitHub repository</h2>
<p><a href="https://github.com/paxosglobal/pyusd-contract/blob/master/contracts/PYUSDImplementation.sol" rel="noopener ugc nofollow" target="_blank">https://github.com/paxosglobal/pyusd-contract/blob/master/contracts/PYUSDImplementation.sol</a></p>
<h1>Smart Contract Odyssey: Navigating Solidity Versions, Proxies, and Account Control</h1>
<h2><strong>1. “Outdated” Solidity Version (0.4.24)</strong></h2>
<p><code>pragma solidity 0.4.24;</code></p>
<p>When considering the Solidity version for the PYUSD stablecoin implementation, the choice between Solidity 0.4.24 and 0.8.x revolves around a trade-off between established reliability and cutting-edge capabilities. Opting for Solidity 0.4.24 provides a stable and proven foundation, ensuring compatibility with existing systems and libraries. Conversely, adopting Solidity 0.8.x offers a host of advanced features, heightened security protocols, and performance optimizations. While the former guarantees a well-tested environment, the latter empowers developers with innovations like checked arithmetic, improved error handling, and more sophisticated compiler tools.</p>
<p><a href="https://medium.com/coinmonks/unlocking-pyusds-smart-contract-secrets-innovation-centralization-and-security-with-code-da72286043f0"><strong>Read More</strong></a></p>