Quarkchain : A highly scalable Blockchain solution with cross-sharding

Analysis of the technology used in Quarkchain

One of the major issues in the current blockchain space is scalability. Quarkchain will address this issue with its solution using Ethereum Virtual Machine(EVM).

Design

2 layer design : a)the sharding layer , b)the root layer

Scalability improvement both horizontally as well as vertically.

For many blockchains(like 100)running in parallel,there is hashpower dilution issue — potential for malicious activity.

Shards(low hashpower) and Rootchain(high hashpower to be able to protect all transactions).

Security

Guaranted security with market driven measures.

No centralized mining mechanism required.

Super node vs multiple node : Multiple nodes can form a cluster forming a super-node.Thus super nodes can be formed without them being run by supercomputers.

Turing complete smart contracts

Consensus

Hybrid POW
Root chain works with traditional POW like Bitcoin and Ethereum.
But in Shards,the fork with the longer chain will not be accepted if it is not accepted by the root chain

Network participants like miners don’t need expensive high power machines to participate.
Clustering of many nodes will replace traditional super nodes
Miners can gradually increase the mining power of their equipment when there are large number of transactions in the network.

Unique ideas of Quarkchain

Cross-chain transactions : Cross shard transactions,each shard is homogeneous with same currency

Simple account management : 1 private key to manage all balances/accounts across different shards
Market driven collaborative mining : ASIC resistant POW

50% hashpower on root chain

Quarkchain will be for mobile users also

How different from Zilliqa

More focussed on general purpose blockchain and turing complete smart contract whereas zilliqa has their special smart-contract for specific task

EVM is the most widely supported,compiler,solidity,IDE

Most of them are scaled more vertically making blockrange to be extremely low in seconds

Value of currency

Similar to GAS to drive dAPPS

New features and increase system capacity

To incentivize miners for securing the blockchain

Please go through interviews by Quarkchain founder Qi Zhou and Quarkchain whitepaper to understand more about the technology behind Quarkchain.