Over the last 12 months Decentralised Finance also known as DeFi has really exploded with reported total value locked reaching $250bn.  R3 who operates in the permissioned blockchain space is spinning out Obscuro into the permissionless space of DeFi. In this podcast we’re joined by James Carlyle who explains the DeFi landscape, the challenges it faces in terms of privacy and scalability and how Obscuro can address these.

 

What is blockchain?

Blockchain is a distributed databased. Instead of one party running it, it is run as a network by a group of entities who don’t necessarily trust each other. It contains features that ensure that entities don’t need to trust each other, they can trust the infrastructure and the code itself.

James has been on a blockchain journey since 2015 when he started off with permissionless public systems like Bitcoin and Ethereum prior to joining R3 in 2015 and helping to design Corda. Corda though had a very different principles than permissionless public systems as it was designed as a permissioned blockchain. The participants all have a verified identity so you know who you are dealing with, whilst on permissionless system they have a pseudonym. Now with Obscuro, James is returning to permissionless public systems.

 

Decentralised finance (DeFi)

Over the last 12 months Decentralised Finance also known as DeFi has really exploded. A few weeks ago JP Morgan reports that total value locked (TVL) has grown from last year’s $20bn to $200bn today.

For James, Defi is an expression of freedom and of innovation. It’s growing very rapidly as it’s able to innovate at lightspeed. All of these applications are open source which means that it is possible to take an existing idea to either build upon it or in some cases to steal it and simply rebrand it. These things increase the level of innovation and increase the level of take up.

At the heart of DeFi is transparency. It runs on permissionless systems, which means anyone can take part, download the data and help in the validation process.

The first generation of DeFi builders and users were not interested in privacy and James believes that DeFi is heading towards a new generation to builders and users who are aiming for a more mass market where privacy is important. The ECB released a report on the digital Euro where privacy is seen as a key digital enabler.

Whilst privacy is important it can unfortunately also be used as a cloak for illegal behaviour. For DeFi to be picked up and used by the mass market it has to be more regulated. Regulation needs identity and KYC. R3 is uniquely placed to interact in this space as it has this rich heritage of having very strong ties with regulation and regulators

 

Miner extractable value (MEV)

In a public blockchain system such as Ethereum there are participants who are submitting transactions. Miners who are here to confirm transactions can see the contents of the transactions that users have submitted. They can take advantage of it in some cases in what is called front running. For example, if you want to buy something on the market you don’t want someone else to bid the price up ahead of the transaction. That’s what is possible when a miner can spot that a user is trying to something and they decide to step in first and thus get the transaction before the user and the user is left behind buying it at a higher price.

It has been estimated that around