We're joined by Igor Barinov, the tech lead of the POA Network. The POA Network achieves a reduction in transaction costs by many orders of magnitude by having a set of trusted validators. All validators must be US public notaries, so their identities are known and legal recourse against them can be taken in the offchain world. We also talk about the xDai network, which enables Dai transactions on a POA chain: Dai are transferred into a smart contract on the mainnet and then become available to be transferred at much lower cost on the POA Network. Similarly, they can be transferred out of the xDai network and become available again on the mainchain. We talk about use cases, governance, and limitations.
Topics covered in this episode:

Igor's background and how he got into blockchain
The POA network setup and how to become a validator
What informs design decisions and how to find suitable notaries
The consensus mechanism on the POA Network
The role of the POA token
The xDai network and its purpose
The role of the DPOS token
Use cases of POA and xDai Networks

Episode links:

POA Network website
POA products overview
xDAI Chain
POSDAO White paper
Ocean Protocol releases own POA network
Beginners guide: What's the POA network

Sponsors:

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This episode is hosted by Meher Roy & Friederike Ernst. Show notes and listening options: epicenter.tv/299