> ## Documentation Index
> Fetch the complete documentation index at: https://docs.qu.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Lectures & Presentations
> A collection of lectures and presentations on the technology powering Quai Network.
## The PoEM Consensus Mechanism: ACSAC 2023 Keynote Presentations
**December 9 2023**
Quai co-founder Dr. K was invited to give a keynote presentation at the 39th Annual Computer Security Applications Conference (ACSAC) in December 2023.
## Mined Transactions: Using PoW to Eliminate MEV
**December 8 2023**
In this recording of Quai University Call #12, Quai co-founder Dr. K explains how Quai Network uses Proof-of-Work to eliminate MEV.
## Intrinsic Value Tokens
**October 16 2023**
In this recording of Quai University Call #11, Quai co-founder Dr. K introduces the concept of "Intrinsic Value Tokens," or tokens derived from real-world assets in a fully decentralized manner.
## Proof-of-Work vs. Proof-of-Stake Consensus
**July 31 2023**
In this recording of Quai University Call #10, Quai co-founder Dr. K explains why Quai Network uses a work-based consensus mechanism (PoEM), rather than a Proof-of-Stake model.
## Eliminating MEV with Mined Transactions
**June 16 2023**
In this recording of Quai University Call #9, Quai co-founder Dr. K details the concept of "mined transactions" for the first time, explaining how they can reduce the impacts of MEV in Quai.
## Sharding in Quai Network
**June 6 2023**
In this recording of Quai University Call #8, Quai co-founder Dr. K explains what kind of sharding is used in Quai Network to achieve infinite scale.
## Subnets in Quai Network
**May 17 2023**
In this recording of Quai University Call #7, Quai co-founder Dr. K dives into subnets: what they are, and how they are used to scale in Quai Network.
## New Technologies Used in Quai
**May 5 2023**
In this recording of Quai University Call #6, Quai co-founder Dr. K goes over the many new technologies that have been implemented to Quai Network.
## PoEM and Perpetual Consensus
**April 26 2023**
In this recording of Quai University Call #5, Quai co-founder Dr. K explains how the Proof-of-Entropy-Minima (PoEM) consensus mechanism enables perpetual consensus amongst Quai nodes.
## An Introduction to Proof-of-Entropy-Minima
**April 10 2023**
In this recording of Quai University Call #4, Quai co-founder Dr. K explains the Proof-of-Entropy-Minima (PoEM) consensus mechanism.
## Security & Interoperability in Disparate Scaling Topologies
**March 22 2023**
With Ethereum adoption the need for scaling solutions to enable high throughput web3 applications is greater than ever. However, current scaling solutions (i.e. optimism, zk-snarks, and rollups) introduce non-obvious security and interoperability challenges that need to be addressed. This talk highlights some of the security and interoperability challenges and proposes a novel mechanism for creating trust-less composable bridges in a multi blockchain environment.
## An Introduction to Multithreaded Execution
**March 10 2023**
Quai Network co-founder Dr. K takes a more advanced look into Quai Network and what sets it apart from other blockchains.
## An Introduction to Cryptocurrency vs. Fiat
**February 6 2023**
Interested in Quai Network and Crypto but don't know where to start? Check out this Quai Network 101 course taught by Dr. K, which also acts as an introduction to why blockchains are important and how Quai Network is taking a revolutionary approach to scaling and security.
## Proof-of-Work vs. Proof-of-Stake Consensus Debate
**November 16 2022**
Texas Blockchain, the undergraduate blockchain organization at the University of Texas at Austin, invited Alan Orwick, co-founder of Quai Network, to join their Layer 1 Consensus debate on November 2nd to advocate on the side of Proof-of-Work. Alan was joined in the debate by representatives from Tron, NEAR, and Hiro.
## BlockReduce: A Method to Scale Blockchain
**December 5 2021**
BlockReduce is the protocol in which Quai Network utilizes to scale blockchains. The BlockReduce began as research at The University of Texas at Austin in 2018. The protocol itself has evolved several times over to where it is now.
This presentation is from the 2018 Texas Blockchain Activities and Research Showcase.