Monday Dec 05, 2022

E11 - James Bayly on Indexing Blockchains & Web3 Decentralisation

James Bayly is the COO of SubQuery and onfinality which are basically data service providers focussing on non-EVM chains such as Polkadot and Cosmos. In this conversation we talk about indexing blockchain data and making it available for users and apps to query in a manner that’s cost efficient, quick, and reliable. We also touch on the modern evolution of blockchains, the blockchain trilemma, and creating a Web3 data marketplace.

00:00 intro
01:45 indexing blockchain data
11:24 opensourcing code
14:13 FTX debacle & boom bust cycles
20:37 SubQuery decentralising data
25:00 tokenised incentives
28:22 reliability & uptime
29:47 onfinality infrastructure
31:30 building in New Zealand
35:24 Polkadot as a 3rd gen blockchain
44:30 blockchain trilemma
48:22 industry groups & legislation
52:23 rapid fire
55:59 fin

Some notes from the show:

Contact James:

Find Jeff:

The BCNZ Pod:


  • The Blockchain New Zealand podcast is brought to you by EasyCrypto

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Recorded at blockheight 765227. The BCNZ podcast was founded in 2022 by Jeff Nijsse and Bryan Ventura.

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