Tobi Loba 
Peter Zhou, the chief scientist at VeChain, has recently shared what makes the system of the new Proof of Authority (PoA 2.0) consensus much more secure.
In a tweet on Wednesday 17th March 2021, Zhou captioned an image that illustrates what a block currently looks like in the new Proof of Authority consensus.
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In a nutshell, his illustration indicates that the PoA 2.0 that is currently in testnet mode and awaiting mainnet deployment comes with better security.
Peter Zhou tweeted, “Just wanna give you guys some idea about the new PoA. The image illustrates what a block now looks like. The red box shows the block is co-signed by 5 randomly selected nodes other than the block producer, which makes the system much more secure.”
Just wanna give you guys some idea about the new PoA. The image illustrates what a block now looks like. The red box shows the block is co-signed by 5 randomly selected nodes other than the block producer, which makes the system much more secure. #VeFam $VET pic.twitter.com/Dj0magZBwf
— Peter Zhou Ⓥ (@PeterZh47977516) March 17, 2021
New Proof of Authority (PoA 2.0) Is Maturing For Mainnet Deployment
According to a pseudonymous VeChain enthusiast, identified on Twitter as MiRei, VeChain currently has three public networks running.
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He stated that the PoA 2.0 testnet is maturing the code at the moment, which will result in mainnet deployment:
“Right now we have three public VeChain networks: – Mainnet – Testnet – PoA2 Testnet. The PoA2 Testnet is for maturing the code. As soon as it passes this stage, it will be removed and Testnet will be upgraded to PoA2.”
Right now we have three public #VeChain networks:
– Mainnet
– Testnet
– PoA2 TestnetThe PoA2 Testnet is for maturing the code. As soon as it passes this stage, it will be removed and Testnet will be upgraded to PoA2.
Maybe some insights for PoA2.0 on the way… $vet $vtho— MiRei (@MiRei83_) March 16, 2021
As the new VeChain Proof of Authority (PoA 2.0) is currently up and running in testnet mode, users can connect to it via Sync, MiRei stated.
Why VeChain Proof of Authority (PoA 2.0) Consensus Is Needed
Since VeChainThor’s scaling solution is all about quality, there will always be room for improvement. There are several ways of scaling a blockchain network, such as increasing the bandwidth, increasing the block size, among others.
In the case of VeChain, PoA 2.0 SURFACE (Secure Use-case-adaptive Relatively Fork-free Approach of Chain Extension) consensus is adopted for bandwidth optimization.
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In the process of maximizing the percentage of time spent in transmitting data, more transactions can be included in the block, which will in turn raise the number of transactions per second (TPS) and improve the bandwidth efficiency.
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