Introducing OpenZeppelin Contracts v5.1

EVM package deployment with ZeppelinOS—Part I

If you’re familiar with Node.js, then you will be familiar with NPM (Node Package Manager). You...

Products

Why I’m Building Zeppelin

The purpose of this post is to update my personal vision of Zeppelin and Zeppelin’s projects, as...

Announcements

Introducing ZeppelinOS 2.0

The platform for developing, deploying, and operating smart contract projects.

Announcements Products

Open source collaboration in the blockchain era: EVM packages

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

Products

The Global Coordination Machine

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

Security Insights

Deconstructing a Solidity Contract  - Part VI: The Metadata Hash

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

Security Insights

Deconstructing a Solidity Contract - Part V

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

Products

Deconstructing a Solidity Contract  - Part IV: Function Wrappers

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

Security Insights

Transaction Permission Layer Protocol v1.0

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

Products

Compliant Decentralization?: Exploring an Approach to Utility Token Distribution

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

Security Insights

Deconstructing a Solidity Contract - Part III: The Function Selector

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

Security Insights

Deconstructing a Solidity Contract - Part II: Creation vs. Runtime

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

Security Insights