TAS 101: The ‘Chiron’ Consensus Mechanism
Editor’s Note: There are many ways in which blockchain technology is different from traditional ones, but the most distinguished one is the concept of ‘decentralization’, as compared to ‘centralization’.
Keeping a decentralized and distributed ledger brings the merit of tamper-proof, but in order to keep the healthy operation of the decentralized system, each node of the network must agree on the validity of added records while rejecting false and invalid ones — this is where consensus mechanism/algorithm comes in.
Why Chiron?
If you’re familiar with Greek Mythology, it is very possible that you remember this name — ‘Chiron’. According to the mythology, this superlative centaur was of great wisdom, and also tutor of many well-known heroes including Achilles and Theseus.
By naming TAS’s consensus mechanism after ‘Chiron’, the architect is actually expressing his vision for this project as well as his confidence.
How the ‘Chiron’ Mechanism Works?
The Chiron consensus mechanism of TAS is an organic combination of the VRF and BLS mechanisms.
Taking advantage of VRF dynamic random grouping, intra-group BLS collaboration, the separation of block mining/verification/generation, and the dynamic and random combination of mining/verifier/proposer groups, the mechanism is made unpredictable, deterministic, inevitable and post-verifiable.
Any device that is connected to the Internet can participate in the mining process. While the heavy nodes keep the full ledger and blocks, the light nodes conduct the verification process to reach a consensus. The collaboration of the two covers both the breadth and depth, and ensures decentralization and fairness while offering a high efficiency and security, thus perfectly solving the impossible triangle.
Besides, Chiron mechanism introduces a health index for both the system and all the nodes. Such an incentive can not only effectively promote participation and fairness, but also raise the system efficiency, with a core performance of 3000+ TPS.
By promoting the robustness of the system, attacks similar to the ‘51% Attack’ in Bitcoin mining can only be launched when at least 95% of all nodes are taken over by a malicious member, which greatly improved the overall security. In each of the block mining, verification and generation process, a parallel multi-channel design is present to support parallel computing, while sharding and tiering as well as multi-chain and cross-chain technologies are implemented to further improve the system performance and scalability, so that the platform efficiency would not be influenced by the changing of scale.
For a complete copy of TAS White Paper, visit:
Official Website: https://www.taschain.io/
Github: https://github.com/taschain/
Twitter: @TASchain168
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