Blog

Continuations and the JVM The Corda flow framework provides a lot of functionality for implementing complex multi-party workflows, which are a key part of essentially every blockchain/DLT-based app. The framework is built on top of another open source library called Quasar, produced by a company called Parallel Universe. R3 has a commercial support agreement with Parallel ...

Corda, SQL and NoSQL Corda differs from other platforms in numerous ways, but one of the most visible is our usage of relational database technology. Sometimes people query this — aren’t we swimming against the tide, which seems to be flowing away from SQL and conventional databases? The answer is no. In this post I’d like to explain ...

Announcing The Corda Public Beta Corda enters Beta this week! As reported last month, R3 has just completed the first two of three tranches of our Series A funding round, raising $107m to fund the development of Corda, our distributed ledger platform designed from the ground up for the needs of commerce. It means all those people ...

Corda, System Failures and Data. Who needs to look after stuff when things go wrong ? We’re often asked (on our Slack, Discourse, or in person) how, if someone running Corda were to lose all their data, they might go about restoring it from other nodes on the network. Equating Corda to traditional blockchain solutions, some ...

The Corda Way of Thinking Corda is a revolutionary new Distributed Ledger Platform, the only DLT specifically designed for the needs of financial services. This article introduces the “Corda Way of Thinking”: understand this article and you’ll be well on your way to being a Corda Expert Solution Designer…! What problem are we trying to solve ...

Towards Deeper Collaboration in Distributed Ledgers: Thoughts on Digital Asset’s Global Synchronisation Log It’s now almost two months since we open-sourced Corda and I’m delighted by the reception it has received. In our rapidly growing community, we’re already seeing new users grow into leaders who help other newcomers get to grips with the platform. And ...

Kotlin When people start looking at Corda’s code the things they notice immediately is that it’s written in Kotlin, a new programming language from JetBrains that targets the JVM and Javascript. This was an unusual choice, so in this post I’ll give some background on why we did it and discuss experiences from our “year ...

The Node Explorer The Node Explorer — affectionately known internally as the James Bond Viewer — is a new graphical user interface that allows you to experience a Corda network from the viewpoint of an individual node owner — exploring the network map, managing your assets, and viewing any transactions you’ve been involved in. You can see a video of the Node ...

Integration with internal systems Any developer working with a distributed ledger of any kind faces the question of how to integrate this new-fangled database with internal systems. By systems, I mean both software and human-oriented business processes. As a decentralised database is not a “company in a box” no matter how sophisticated it is, such integration ...

Rationale for and tradeoffs in adopting a UTXO-style model Corda is designed with the explicit aim of avoiding, to the extent possible, the scalability and privacy implications that arise from the use of global broadcast and the “global computer” data model. Whilst the privacy implications of global broadcast are easy to understand, the scalability implications ...