Solidity

For Whom the Delegate Calls

The colonyNetwork codebase is large and complex. This article is meant to just provide a quick lay of the land, and to point you, dear hacker, toward where we think the bugs might be. We'll also re-cap some of the bugs that have been discovered so far.

Blockchain

Parameterized Transaction Reviews

Multi-signature transactions are one of the most useful patterns for smart contracts and the dApps that utilize them. But in the ‘vanilla’ implementation of multi-signature design, transaction reviewers (owners), are assigned contract-wide and review all transactions.

Blockchain

Securing Local Storage for dApps

Deploying a decentralized application introduces some interesting security considerations that might not come up in more traditional development.

Ethereum

How to Write Clean, Elegant Solidity Code Using Function Modifiers

One of the most interesting features in Solidity are function modifiers.

Blockchain

Token-weighted Voting Implementation Part 3

This is the last of a 3-part article which presents the Solidity-based implementation of the Token weighted voting protocol.

Solidity

Code Coverage for Solidity

Ensuring the security of deployed Ethereum contracts is one of the most important challenges facing Ethereum developers today.

Ethereum

Token-weighted Voting Implementation Part 2

This is the second of a 3-part article which presents the Solidity-based implementation of the Token weighted voting protocol.

Ethereum

Token-weighted Voting Implementation Part 1

This is the first of a 3-part article which presents the Solidity-based implementation of the Token weighted voting protocol.

Ethereum

Writing Robust Smart Contracts in Solidity

Before contract function code executes, it’s a good idea to validate who triggered it and what inputs are given.