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Zilliqa

Zilliqa

Zilliqa is a blockchain platform for decentralized applications under development with a focus on sharding to address blockchain scalability.

Zilliqa is a blockchain platform for decentralized apps under development attempting to address blockchain scalability primarily through sharding. The development of the platform was inspired by Elastico, a sharding protocol developed at the National University of Singapore. On October 12, 2017, Zilliqa claimed to have developed a testnet with sharding capable of processing 2,488 transactions per second. Zilliqa tokens are called Zillings (ZIL).

History

Zilliqa token generation event allocated 30% of ZIL tokens to community contributors, 30% for development of the project, and 40% for as incentives for miners to secure the network. Zilliqa delivered the keynote presentation at the SGInnovate conference on October 5, 2017.

Architecture

Consensus mechanism

It uses practical byzantine fault tolerance (pBFT) consensus as opposed to Nakamoto consensus protocol used by other cryptocurrencies like Bitcoin. Benefits of pBFT include more secure state finality once consensus has been reached on a block.

Each shard produces microblocks, confirmed by the nodes in that particular shard, which are then passed up to a DS committee. The committee verifies that 2/3 of the nodes produced valid signatures for the correctness of the block. Thus the DS committee nodes run another round of pBFT consensus in order to validates the block.

The shard which a specific node joins is determined at random in order to reduce the ease of collusion on any specific shard.

Zilliqa uses Schnorr signatures in order to reduce the size of digital signatures in order to address an issue in pBFT where digital signatures expand in size due to larger amounts of shards.

Mining

There is a finite total supply of 21 million tokens ZIL tokens. The Zilliqa consensus protocol uses a proof-of-work system to deter Sybil attacks or DDos attacks. The architecture also allows for the possibility of transition to a proof-of-stake system in the future.

Timeline

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People

Name
Role
Related Golden topics

Amrit Kumar

Xinshu Dong

Further reading

Author
Title
Link
Type

JP Buntinx

What Is Zilliqa?

Loi Luu, Viswesh Narayanan, Chaodong Zheng, Kunal Baweja, Seth Gilbert, Prateek Saxena

A Secure Sharding Protocol For Open Blockchains

Academic paper

Richard Kastelein

Zilliqa Breaks 2,400 Transactions per Second with their ‘Sharding’ Blockchain

Xinshu Dong

Details on Zilliqa’s Token Generation Event

Zilliqa team

The ZILLIQA Technical Whitepaper

Documentaries, videos and podcasts

Title
Date
Link

Zilliqa – A Scalable Sharded Public Blockchain

November 14, 2017

Companies

Company
CEO
Location
Products/Services

Zilliqa

Xinshu Dong

References