Solayer launches PoA-S: Hybrid Consensus Mechanism goes live, Solana native Staking officially launched

Blockchain technology is advancing rapidly, and various innovative Consensus Mechanisms have emerged to enhance transaction efficiency and security. Recently, Solayer protocol announced the launch of PoA-S (Proof of Authority and Stake), which is a hybrid Consensus Mechanism that combines the advantages of PoA (proof of authority) and PoS (Proof of Stake). The design of PoA-S not only improves transaction verification efficiency but also ensures the fairness and security of the network.

With the official launch of PoA-S, Solana's native Staking is also open simultaneously, bringing a more stable and flexible solution to the decentralized ecosystem.

PoA-S: Hybrid Consensus Mechanism of Authority and Staking

PoA-S is an innovative Consensus framework that ensures efficient transaction processing and secure verification through the collaboration of authoritative nodes and staking validators.

Sequencers ( operated by authoritative nodes ) are responsible for managing transaction packaging and block generation, ensuring that transactions can be processed quickly.

Provers verification node ( is operated by staking verifiers ) to verify the transaction data submitted by Sequencers, ensuring its accuracy and participating in Consensus decision-making through staked assets.

This design not only increases the throughput of the blockchain to ( TPS ), but also reduces transaction latency, providing users with a smoother trading experience.

The core operation mode of PoA-S

Under the PoA-S mechanism, the processing of transactions is divided into the following steps:

Sequencers are responsible for transaction ordering and block generation. Pre-selected Sequencers batch process transactions, split them into Shreds ( transaction slices ), and then distribute them to the network for verification. These Sequencers are selected based on specific criteria to ensure the credibility of their behavior.

Provers verify through PoS Proof of Stake Validators (Provers) need to stake a certain amount of assets before participating in transaction verification. Their responsibility is to re-execute the transactions in the Shreds submitted by Sequencers and calculate the Effect Hash, comparing it with the embedded hash to ensure data integrity.

Achieve Consensus and confirm transactions

If the verification result of Provers is consistent with Sequencer, the transaction is confirmed valid by voting.

If a mismatch is found, the transaction will be rejected, triggering the penalty mechanism.

When more than 51% of validators confirm the transaction is valid, the transaction is finally confirmed.

This dual authentication mechanism enhances the security of transactions, ensuring that malicious actors cannot manipulate transaction data.

Deep integration of PoA-S with Solana

By integrating with Solana, PoA-S further strengthens its security and reliability. When the Sequencer submits invalid transactions, the Provers will reject the transactions through a voting mechanism, triggering a re-election process to select a new Sequencer replacement.

In addition, PoA-S has built-in economic penalty mechanism (Slashing), ensuring that malicious behavior by the Sequencer will be penalized, such as asset reduction or exclusion from the network. This design effectively prevents dishonest behavior and ensures the long-term stability of the network.

What are the advantages and challenges of PoA-S?

The main advantage of PoA-S

High throughput and low latency: Authority nodes are responsible for transaction packaging and sorting, significantly increasing the TPS( transactions per second), ensuring that the network can handle large-scale transaction demand.

Dual verification mechanism: PoA Sequencers and PoS Provers work together to ensure the accuracy of transaction data and reduce the risk of malicious behavior.

Economic penalty mechanism: Ensure that malicious nodes cannot affect network security through Slashing, further enhancing the fairness of the system.

Challenges faced by PoA-S

Centralization Risk: Although PoA-S is designed to reduce centralization risk by adopting PoS, it still requires monitoring the behavior of authoritative nodes to ensure that the degree of decentralization of the network is not affected.

Validator availability: If Provers are offline on a large scale, it may affect the speed of transaction verification. Therefore, PoA-S introduces a dynamic validator adjustment mechanism to ensure the continuous and stable operation of the network.

Dependence of Sequencers on the reputation mechanism: PoA-S relies on the reputation mechanism of Sequencers to maintain efficient operation, thus requiring continuous optimization of the selection and supervision mechanism of authoritative nodes to reduce the risk of malicious behavior.

As an innovative Consensus Mechanism launched by Solayer, PoA-S finds a balance between high throughput, low latency, and enhanced security through a hybrid design of PoA + PoS. This architecture combines the efficient processing capability of Sequencers with the decentralized verification mechanism of Provers, bringing a more stable and efficient operating mode to the blockchain.

This article introduces Solayer's PoA-S: Hybrid Consensus Mechanism goes live, Solana's native Staking officially launched first appeared on Chain News ABMedia.