Introducing OpenZeppelin Contracts v5.1

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...

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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...

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Deconstructing a Solidity Contract - Part V

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

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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....

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Transaction Permission Layer Protocol v1.0

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

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Compliant Decentralization?: Exploring an Approach to Utility Token Distribution

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

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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...

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Towards frictionless upgradeability

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

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

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

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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...

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Getting started with ZeppelinOS

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

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