Relay Chain

A podcast on blockchain development & building the decentralized web

About the show

Relay Chain is a podcast covering blockchain development and building the decentralized web. We focus on the cutting edge of blockchain tech, including Substrate and Polkadot.

Brought to you by Parity Technologies, a core blockchain infrastructure company. Parity is creating an open-source creative commons that will enable people to create better institutions through technology.

Follow us at @paritytech and @relaychain.

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  • Origin Trail: Decentralized Knowledge Graph & the Semantic Web3

    May 19th, 2022  |  1 hr 6 mins
    blockchain, ethereum, polkadot, web3

    This week, Jorrin Bruns (Support Engineer, Parity Technologies) is joined by Origin Trail’s Tomaž Levak (co-founder & CEO) and Žiga Drev (co-founder and COO). OriginTrail is a Substrate-based blockchain that recently won a parachain slot on Polkadot. OriginTrail developed the world’s first Decentralized Knowledge Graph (DKG) to organize humanity’s most important assets, making them discoverable, verifiable, and valuable, often referred to as 'the google of Web3'.

  • Centrifuge, Connecting Real World Assets with DeFi

    February 15th, 2022  |  57 mins 11 secs
    blockchain, ethereum, polkadot, web3

    This week Jorrin Bruns (Support Engineer, Parity Technologies) is joined by Cassidy Daly, token design and research specialist at Centrifuge, a Substrate-based blockchain that recently won a parachain slot on Polkadot. Centrifuge aims to bring an archaic financial system into the Web3 space, enabling users to unlock financing for their real world assets by bringing them on-chain.

  • Mainstreaming DeFi with Parallel Finance

    December 9th, 2021  |  48 mins 56 secs
    blockchain, defi, ethereum, polkadot, web3

    This week, Jorrin Bruns (Support Engineer, Parity Technologies) is joined by Yubo Ruan, founder of Parallel Finance, a lending solutions provider designed to increase liquidity and acceptance on the Polkadot network. Parallel Finance is a Polkadot parachain and its sister network Heiko Finance is a Kusama parachain. This episode begins with an introduction to Parallel Finance and its tech stack. They also discuss how Substrate helped Parallel launch a parachain in 7 months, and how the project is disrupting DeFi through a unique take on lending design and building user interaction interfaces (necessary for interoperability in DeFi).

  • Accelerating the Web3 Metaverse with Outlier Ventures

    November 25th, 2021  |  1 hr 19 mins
    blockchain, ethereum, metaverse, polkadot, web3

    This week, Joe Petrowski (Technical Integrations Lead, Web3 Foundation) is joined by Jamie Burke, CEO, and founder of Outlier Ventures, an accelerator that supports the development and growth of emerging technologies, including Polkadot. They are currently running a Polkadot accelerator through their Base Camp program.

  • Building Blockchain Social Networks with Subsocial

    September 17th, 2021  |  1 hr 3 mins
    blockchain, polkadot, substrate, web3

    This week, Jorrin Bruns (Polkadot Integration Specialist, Parity Technologies) is joined by Subsocial’s founder and Polkadot Ambassador Alex Siman, and Zachary Edwards, Subsocial’s content lead and community manager. Subsocial is an open protocol for decentralized social networks and marketplaces, and this episode explores the world of social networks on blockchain, through the eyes of the Subsocial team.

  • Robonomics: The Blockchain with Robots

    August 19th, 2021  |  1 hr 20 mins
    blockchain, ethereum, polkadot, web3

    In this episode, Jorrin Bruns (Support Engineer, Parity Technologies) is joined by Robonomics Software Architect Sergey Lonshakov. Robonomics is an open-source internet of things (IoT) platform. It provides ways for humans to communicate with robots, and for robots to connect to each other and the internet.

  • Statemine: A Deep Dive Into Kusama’s Asset Hub with Joe Petrowski

    August 5th, 2021  |  54 mins 30 secs
    blockchain, ethereum, polkadot, web3

    This week the tables are turned on Relay Chain, with Jorrin Bruns (Support Engineer, Parity Technologies) interviewing co-host Joe Petrowski (Technical Integrations Lead, Web3 Foundation) as a guest representing his contribution to the Statemint/Statemine project. Statemine — Kusama’s version of Polkadot’s Statemint — is a common-good parachain for creating and managing assets and NFTs on-chain. It recently made history as the first live, featureful parachain to be onboarded to Kusama. Now that Statemine has been made permissionless, anyone can use it to create and deploy tokens and NFTs.

  • Prediction Markets and Futarchy with Zeitgeist

    July 23rd, 2021  |  48 mins 57 secs
    blockchain, ethereum, polkadot, web3

    This week, Jorrin Bruns (Support Engineer, Parity Technologies) is joined by Zeitgeist’s founder Logan Saether, and CIO, David Perry. Zeitgeist is a Substrate-based decentralized network for creating, participating in, and resolving prediction markets, and exploring the potential of futarchy for governance.

  • Querying the World's Data with SubQuery

    July 9th, 2021  |  48 mins 51 secs
    blockchain, ethereum, polkadot, web3

    Jorrin Bruns (Support Engineer, Parity Technologies) talks with James Bayly, Head of Business Development for OnFinality, one of the largest infrastructure providers for Polkadot and Substrate, about Subquery, a tool that speeds up querying and extracting Polkadot network data so that anyone can take the data off-chain and create something useful.

  • Former Estonian President Toomas Hendrik Ilves on Blockchain Adoption and Internet Regulation

    June 24th, 2021  |  1 hr 22 mins
    blockchain, web3

    In this Relay Chain exclusive, Joe Petrowski (Technical Integrations Lead at Web3 Foundation) and Parity’s Úrsula O'Kuinghttons speak with former President of Estonia Toomas Hendrik Ilves. Uniquely placed as one of few presidents who knows how to code, Ilves was responsible for implementing the digitization of the Estonian government, one of the first countries to adopt blockchain tech, and many other processes in the country from voting to registering a business.

  • Creating Your Own Metaverse with Bit.Country

    June 11th, 2021  |  52 mins 13 secs
    blockchain, ethereum, polkadot, substrate, web3

    This week we’re joined by Bit.Country, a Substrate-based decentralized world with a game-like feel that puts community at the forefront. Bit.Country lets anyone create their own decentralized virtual country and grow their own community.

  • Confidential Cloud Computing on Phala Network

    May 27th, 2021  |  1 hr 4 mins
    blockchain, ethereum, polkadot, web3

    Privacy takes center stage in this week’s episode as Jorrin Bruns (Support Engineer, Parity Technologies) talks with Marvin Tong, co-founder and CEO of the Phala Network, a trustless, privacy-preserving cloud computing network based on Substrate. They dive deep into Phala’s tech, exploring how Phala tackles the issue of trust in the computational cloud by shielding user data from centralized organizations like Google, with the same level of computational power as existing cloud services.

    Tong details several topics, including node security, Phala’s Substrate-based runtime and bespoke pallets, integrating alternative trusted execution environment (TEE) hardware, and how it tackles consensus. They delve into on-chain data privacy, deploying private smart contract computation for decentralized applications (DApps) and decentralized finance (DeFi) and services on Phala Network including Web3 Analytics and cross-chain interoperability.

  • Plasm: Scalable, Interoperable DApps on Polkadot

    May 12th, 2021  |  40 mins 36 secs
    blockchain, ethereum, polkadot, web3

    This week Jorrin Bruns (Support Engineer, Parity Technologies) speaks with Sota Watanabe, CEO of Stake Technologies and founder of Plasm, a platform designed to help developers deploy fast and secure decentralized applications (DApps) on Polkadot.

    They discuss advancing Web3 via cross-chain collaboration, supporting DApp development, and decentralizing the Plasm network. Watanabe walks us through being the first parachain on Rococo, completing the first cross-chain message (together with Acala), bringing Ethereum compatibility and ZK-Rollups to Polkadot, staking and trading DApps, securing a parachain slot, and much more.

  • Tether - Stablecoin Innovation, Regulation, and Mainstream Potential with Paolo Ardoino

    April 22nd, 2021  |  39 mins 42 secs
    blockchain, ethereum, polkadot, web3

    This week we dive into Tether, a stablecoin playing an important role in disrupting the legacy financial system, recently announced to be launching on Polkadot.

    Joe Petrowski, (Technical Integrations Lead, Web3 Foundation) speaks with Paolo Ardoino, CTO of Bitfinex and Tether. They discuss stablecoin trends, regulation and compliance with central banks, CBDCs (Central Bank Digital Currencies), the likelihood of central banks running on public blockchains such as Polkadot and Ethereum, achieving blockchain interoperability through common goods, and the upcoming launch of Tether on Polkadot.

  • Joe Petrowski on Imagining a Brighter Future with Polkadot and Web3

    April 8th, 2021  |  41 mins 15 secs
    blockchain, polkadot, substrate, web3

    After a short hiatus, we’re back this week with a new co-host joining the podcast, Jorrin Bruns (Support Engineer, Parity Technologies). In this episode, Jorrin turns the tables and interviews Joe Petrowski (Technical Integrations Lead, Web3 Foundation, and Relay Chain co-host) about the future of the podcast, Joe’s journey from the aerospace industry to professional cycling to Web3, and how blockchain innovation brings together diverse interest groups. They discuss the potential for Polkadot and Web3 to realize a propian future, breaking down surveillance capitalism through decentralized governance, infinitely scalable parachains (so-called hierarchical or nested relay chains), and building a decentralized economy of robots powered by Polkadot.

  • Equilibrium and the Global Impact of Blockchain, DeFi, and Web3

    December 2nd, 2020  |  37 mins 40 secs
    blockchain, ethereum, polkadot, web3

    In this wide-ranging and eye-opening discussion, Joe Petrowski (Research Analyst, Parity Technologies) speaks with Lesley Czuma, Head of Business Development at Equilibrium, a cross-chain money market combining pooled lending with synthetic asset generation and trading. They discuss the massive potential of Web3 and DeFi to radically impact global systems of organization and power, to disrupt monopolies, and bring benefits to those marginalized by the current economic paradigm. They also dive into what Equilibrium is building and the role played by Polkadot and Substrate, the blockchain-building framework from Parity Technologies.