Introducing OpenZeppelin Contracts v5.1

Augur Core Audit

The Augur team asked us to review and audit their Augur Core project. We looked at the code and now...

Security Audits

Gnosis Multisig Wallet Audit

We reviewed and audited the Gnosis multisig wallet contract for our own internal use, and choose to...

Security Audits Solidity Vesting Wallet

EthDenver Zeppelin Prize Winners

As we’re wrapping up EthDenver 2018, the #gratitude hashtag falls short to say thanks to all the...

Events

POLY Token Contracts Audit

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

Security Audits

Bax Token Audit

The BABB team asked us to review and audit their Bax Token contract. We looked at the code and now...

Security Audits

Coinfix Token Audit

The Coinfix team asked us to review and audit their MerchantSubscription contract. We looked at the...

Security Audits

Smart Contract Upgradeability using Eternal Storage

As mentioned in our Development Roadmap Part Two, the Kernel is the foundational layer of...

Security Insights Products

A Gentle Introduction to Ethereum Programming, Part 3

This is the third part of our Ethereum introduction guide. If you haven’t read parts 1 and 2, I...

Tether Token Audit

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

Security Audits

Qiibee Token Audit

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

Security Audits

WAX Token Audit

The WAX team asked us to review and audit their WAX Token contract. We looked at the code and now...

Security Audits

ZeppelinOS Partners With ChainLink, the Market Leader in Trusted Oracles

The process of building and managing smart contracts is often complex, time-consuming, and prone to...

Announcements