Doubling Down on Open Source Tools and Phasing Out Defender

OpenZeppelin is doubling down on open source development tools by sunsetting Defender and releasing production-ready open source Relayers and Monitor. Discover new features, and our expanded open ...

A stable, audited, and fully tested package for smart contract development

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Smart contract development is still in its early days. We’re all still trying to figure out what it...

Products

Few applications need blockchains. Distributed consensus makes each computational step very...

Security Insights

In the last article, we noticed that the runtime bytecode generated by the Solidity compiler...

Security Insights

The function body is precisely what the function wrappers detour to, after unpacking the incoming...

Products

We saw how the function selector acts as a hub or a switch of sorts in our BasicToken.sol contract....

Security Insights

The Transaction Permission Layer protocol (TPL) is a method for assigning metadata (herein referred...

Products

William Hinman’s recent statements at the Yahoo Finance All Markets Summit provide some guidance...

Security Insights

In the prev. article, we identified the need to separate a contract’s bytecode into creation-time...

Security Insights

ZeppelinOS is all about making the technology of upgradeability into an accessible and frictionless...

Products

Let’s get started by attacking the disassembled gibberish of our contract with our...

Security Insights

You’re on the road, driving fast in your rare, fully restored 1969 Mustang Mach 1. The sunlight...

Security Insights