Auditing Smart Contracts with Chainlens

Bugs in smart contracts cause problems. From the original DAO hack, to issues with Parity's multisig wallets, to smaller bugs caused by integer overflows and underflows, software errors have caused real world consequences. Some of which have seriously affected trust in various companies, and the Ethereum ecosystem more

How to test Ethereum Smart Contracts

As a developer, I’m sure you strive to test what you develop, and in most established programming languages you have a box full of tools to pick from. In the world of blockchain, the box is still being built however, and the maturity of the available tools reflects this.

Exciting Web3j SDK Announcements

Web3j is the JVM integration library for Ethereum, used by Java, Android and Kotlin developers. It provides you with account and transaction management, and full type safety of smart contract integration from code. This means that when you write Java code with Java types, they will be mapped in a

Exploring the Blockchain on AWS

Since launching the Sirato (Chainlens) blockchain explorer on the Azure Marketplace earlier this year, many people have asked us if it would be made available on the AWS Marketplace. The wait is finally over! We’re pleased to announce that from today Sirato (Chainlens) is available in the AWS Marketplace.

How to create an awesome developer experience for Corda

September and October 2019 were busy months at Web3 Labs, with a lot of work happening in preparation for CordaCon. In support of our ongoing mission to provide a fantastic developer experience for developers working with blockchain, we were pleased to announce the web3j-corda project which was made public for

How to explore the blockchain on Hyperledger Besu

Ever since we created the Sirato (Chainlens) blockchain explorer, we wanted to ensure it works seamlessly with several different Enterprise Ethereum (and of course regular Ethereum) blockchain clients. Until recently, Quorum was the only enterprise client that we fully supported along with its privacy features. We’re pleased to say

Announcing web3j — Aion integration

After intense collaboration with the Aion network team, Web3 Labs were proud to announce the availability of the web3j Aion integration to support the Aion Virtual Machine (AVM) in September 2019.  The AVM is a JVM-compliant blockchain execution environment that unlocks the entire Java ecosystem and enables you to write

Chainlens goes Mobile

Although our Chainlens blockchain explorer for Quorum and Ethereum is primarily intended for running on a desktop machine or laptop, we’ve always wanted to ensure it offers a great user experience on mobile too. We released the mobile support a while back, but had wanted to do a dedicated

Chainlens Blockchain Explorer - free version now available

Hot off the heels of our Chainlens blockchain explorer release on Azure, we refreshed our free blockchain explorer offering. Now you can use our flagship Chainlens explorer on Quorum, Ethereum and Azure Blockchain Service. Pantheon support will also be available very soon!  To get started, head over to the project

Chainlens at //build/

It’s been a busy few weeks at Web3 Labs. Following the  launch of our Chainlens Blockchain Explorer on Azure  last week, we also had the privilege of it being selected by Mark Russinovich , the CTO for Microsoft Azure for his demo at Build. Build is Microsoft’s premier developer

Azure Blockchain Service Explorer

Last night Microsoft announced their Azure Blockchain Service providing a fully managed service for the formation, management and governance of blockchain deployments. We’ve been working with the technology in private during the past few months, and we believe Microsoft have done a fantastic job in simplifying the deployment of

Tokens for Enterprise

Here at Web3 Labs we’re great believers in the opportunity tokenization presents for blockchains. From asset tokens to utility tokens, the ability for them to track asset provenance or a notion of value — be it loyalty points or similar initiatives is a great usage of the technology, with an

Introducing Web3 Labs

We’re excited to be announcing that blk.io has rebranded to Web3 Labs! The Rebrand  When we started blk.io 18 months ago, we had a vision for the company to bridge the gap for enterprises working with Ethereum blockchain technology. As technologists we loved the name blk.io

Web3j-4.1.1 is available

At blk.io we are always looking to improve and streamline our build and release process in all software projects that we work on, be it for internal projects, client engagements or open source libraries.  web3j is no exception to this, and 4.1.1 was released with some minor

Christmas has come early for Web3j Android developers

blk.io is proud to announce the general availability of the latest web3j library for Android; 4.1.0-android has been released and is available for use.  As highlighted in our previous post the prior build with Android support web3j-3.3.1-android, and web3j has come a long way since.

Web3j 4.1.0 is available for Android

Here at blk.io we have been working hard to ensure that Android developers working with Ethereum have the latest and greatest of web3j’s features at their disposal, and this has its challenges. Whether it’s developing new features or fixing bugs one needs to be cognizant of writing

Web3j 4.0 Released

Building on the fantastic work of our community, we have taken web3j-4.0.0 out of alpha and made it available as a full release. As you may recall web3j-4.0.0-alpha was released in time for Devcon4, to provide our community with some sought after features, such as Reactive

Web3j-4.0.0 preview is available, just in time for Devcon 4

At blk.io we’ve had some exciting times recently; our team has been growing in order to bring to fruition our plans for web3j.  Earlier this month we released web3j 3.6.0 with some critical fixes, and we are now happy to announce the release of 4.0.

Announcing the Web3j Gradle plugin

Here at blk.io we’re happy to announce the general availability of the web3j Gradle plugin. Ever since support was added to web3j forsmart contract bindings we’ve wanted to have a Gradle plugin. We were fortunate that Heinz Marti developed (and continues to maintain) a Maven plugin, but

Web3j ECF update

The Ethereum Community Fund (ECF) recently announced funding for web3j. Here at blk.io it’s been great to get this support from the ECF to help supercharge the development of the library. A bit of history I started development of web3j back in September 2016, with the initial release

DerivHack 2018

Last month members of blk.io participated in the inaugural Derivhack 2018 Hackathon, sponsored by ISDA, Barclays, Deloitte and Thompson Reuters at Rise London. We won the category of best solution architecture for our work built on top of our very own Epirus platform. It was great to get the

Chainlens Enterprise Blockchain Platform

The team at blk.io have been hard at work during the past few months. We’ve been working on a number of initiatives which we’re now ready to bring together to present Chainlens, our enterprise blockchain platform. Chainlens is made up of a number of core components, including:

Crux 1.0

We’ve been busy at blk.io in the last couple of months since we announced Crux. We're happy to announce the availability of version 1.0. This version, an updated client and internal API making use of Google’s protocol buffers and gRPC technologies. TLS is also

Announcing Crux, a secure enclave for Quorum

We’ve been working with and contributing one way or another to Quorum since it was made public back in November 2016. Regardless of your views of JP Morgan, having one of the worlds largest financial firms putting their weight behind Ethereum blockchain technology and creating Quorum, was always a

Our Free Blockchain Explorer is now available

Recently we announced our Blockchain Explorer for working with private Ethereum and Quorum networks. We’re pleased to announce there is now a free version available. Browse your Blockchain Anyone using a private Ethereum or Quorum network can now plug our Explorer into their network and have an easy to