Introducing OpenZeppelin Contracts v5.1

Why I’m Building Zeppelin

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

Announcements

State of EVM Packages – End of 2018

Two months ago, we presented the EVM package standard as a means to securely share on-chain...

Security Insights

RNDR Token Transfer Audit

The OTOY team asked us to review and audit their RNDR Token contracts. We looked at the code and...

Security Audits Solidity Token

Toward a secure code ecosystem

This week started off with the finding of malicious code injected into a dependency of a popular...

Security Insights

The transparent proxy pattern

Much has been discussed around proxy patterns and how to best achieve upgradeability in Ethereum...

Products

Solidity Compiler Audit

The Augur team and the Ethereum Foundation (through a joint grant) asked us to review and audit the...

Security Audits

Announcing the ZEP Token Private Beta

Today we are excited to announce the ZEP Token Private Beta for ZeppelinOS — a network that uses...

Announcements Products

Introducing ZeppelinOS 2.0

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

Announcements Products

Participate in Zeppelin’s Puzzle Game to Celebrate Devcon4!

After the fun we had with last year’s Ethernaut hacking game, we’re releasing EthHunt, a new game...

Events

OpenBazaar’s Escrow Audit

The OpenBazaar team asked us to review and audit their Escrow contract, one of several in their...

Security Audits

Getting started with OpenZeppelin-eth

These are great times for smart contract development. The pieces for Ethereum 2.0 are coming...

Products

Announcing OpenZeppelin 2.0

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

Announcements Products