Introducing OpenZeppelin Contracts v5.1

Dharma Audit

The Dharma team asked us to review and audit the smart contracts implementing their protocol. We...

Security Audits

Ethereum in Depth, Part 2

Welcome to the second part of this guide. If you haven’t read part 1, I highly recommend it to...

Security Insights

Exploring upgradeability governance in ZeppelinOS with a Gnosis MultiSig

With the first release of ZeppelinOS two months ago, the key issue we wanted to tackle was...

Products

Verifying identity in Venezuela through the TPL

Venezuelans are at the heart of the Americas’ worst-ever refugee crisis, most of them unable to...

Products

Introducing the Transaction Permission Layer (TPL) Protocol

Current blockchain protocols lack an effective governance mechanism that ensures transactions...

Products

Announcing the launch of ZeppelinOS

Today we’re excited to announce the first mainnet release of ZeppelinOS, a platform for developing,...

Announcements Products

Ethereum in Depth, Part 1

Welcome to the first part of a two-posts series aimed at software developers looking to understand...

Security Insights

Proxy Patterns

One of the biggest advantages of Ethereum is that every transaction of moving funds, every contract...

Products

Upgradeability using Unstructured Storage

During the last months we've been designing and developing a prototype of the zeppelin_os Kernel....

Products

On crowdsales and multiple inheritance

On 2017 we saw a mind-blowing number of crowdsales and ICOs running in the Ethereum blockchain....

Security Insights

US Dollar Audit

We reviewed and audited the US dollar contracts, from the US Federal Reserve team, for our own...

Security Audits

ERC20 Element Token Audit

The Element Group team asked us to review and audit their ERC20 Element Token contract. We looked...

Security Audits