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Featured Post

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 Relayer and Monitor. Discover new features, and our expanded open ...

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Doubling Down on Open Source Tools and Phasing Out Defender
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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

Towards frictionless upgradeability

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

Products

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

Deconstructing a Solidity Smart Contract - Part 1: Introduction

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

Security Insights

Getting started with ZeppelinOS

Blockchains are immutable, and Ethereum is no exception. Ethereum has a rich smart contracts...

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