Today’s episode is with Thomas Barker, a software engineer and my goto person for everything blockchain technology, with whom I’ll discuss Hyperledger Cactus that recently graduated from Hyperledger’s Lab to the Greenhouse [1]. Hyperledger Cactus is the old “Blockchain Integration Framework” [2] that allows different blockchains to interact with each other, and having standardised technology of this kind is a key step in the blockchain ecosystem growing up.

My sincere apologies for overrunning my time budget on this occasion – my discussion with Thomas is almost 17 minutes. I did not have the heart to cut it as I think it is a good discussion on an important topic, but I promise I’ll try to do better next time.


Thomas Barker. Graduating from the University of Warwick in 2004, Thomas wrote the words ‘Digital money techniques allow creation of unforgeable tokens’ in the future research section of his final report. Sadly he is not Satoshi, but does bring with him over a decade of engineering experience within FinTech. Thomas was the first outside technology hire of both P2P lending market Zopa, now valued over £400m, and BullionVault, a retail gold broker with Assets-Under-Management of over $2bn. He has been involved in the Ethereum community from the start. Attending every Devcon across three continents, and has been involved in a number of startups trying to bring blockchain into real work commerce. Presently, Thomas consults for a number of clients across Europe from tiny startup to giant banks.

  2. (@thomasbarkercom)

    podcast link