About the Qitmeer Development & Technical Discussion category

You can post here to discuss topics related to Qitmeer technologies, including development and research,such as Cross Chain, Wallet, BlockDAG etc.

History has made it known that the idea behind blockchain technology was described as early as 1991 when research scientists Stuart Haber and W. Scott Stornetta introduced a computationally practical solution for time-stamping digital documents so that they could not be backdated or tampered with. The system used a cryptographically secured chain of blocks to store the time-stamped documents and in 1992 Merkle trees were added to the design, making it more efficient by allowing several documents to be collected into one block. However, this technology went unused and the patent lapsed in 2004, four years before the inception of Bitcoin.

In 2004, computer scientist and cryptographic activist Hal Finney (Harold Thomas Finney II) introduced a system called RPoW, Reusable Proof Of Work. The system worked by receiving a non-exchangeable or a non-fungible Hashcash based proof of work token and in return created an RSA-signed token that could then be transferred from person to person. RPoW solved the double spending problem by keeping the ownership of tokens registered on a trusted server that was designed to allow users throughout the world to verify its correctness and integrity in real time. RPoW can be considered as an early prototype and a significant early step in the history of cryptocurrencies. At @QitmeerNetwork has redefined the blockchain technology for the better of the society as a decentralized global monitoring solution for product safety and integrity which is achieved by harnessing the power of the technology of consortium chain, with the particular attention in the field of Halal industry, including food, medicine and cosmetics. Bringing the new solutions through the invention of the Blockchain Technology, @QitmeerNetwork Open and Credible Distribution: Through internet of things, blockchain technology and smart contracts, a global halal product ecosystem is established to regulate the Halal food industry certification system, which aims to trace the end-to-end supply chain for Halal food, medicine and cosmetics The Solution:

Reliable data acquisition system There is no manual intervention during the automatic collection and uploading of product information in the supply chain that ensures accuracy of the data.

Distributed halal food supply Based on the blockchain and smart contract technology, the product information data on the chain is unique and resistant to modification.chain

Decentralized product traceability platform

The platform data is ensured safely and reliably through the optimization of the PBFT protocol and separate deployment of the central node and enterprise node.