QIAN.finance Documents
  • QIAN.finance knowledge base
  • QIAN.finance 知识库
  • QIAN V2 Whitepaper
    • QIAN V2: Innovative decentralized fractional-algorithmic synthetic assets protocol
    • Price Stability of QSD
    • QSD Minting
    • QSD Redeeming
    • KUN token
    • Buybacks & Recollateralization
    • Bond stabilization
    • Liquidity mining Programs & Governance mining
    • Conclusion
  • QIAN V2 白皮书
    • QIAN V2:创新的去中心化分数算法合成资产协议
    • QSD 的套利稳定机制
    • QSD 铸币
    • QSD 赎回
    • KUN 代币
    • 回购和再抵押
    • 债务稳定
    • 流动性挖矿计划与治理挖矿
    • 总结
  • QIAN V1 whitepaper
    • QIAN V1: crypto-assets backed stablecoin protocol
    • Introduction to QIAN stablecoin protocol
    • Locked asset management
    • Stability management
    • External systems
    • System governance
    • Reference
  • QIAN V1 白皮书
    • QIAN V1:加密资产储备型稳定币协议
    • QIAN V1 介绍
    • 锁定物管理
    • 稳定性管理
    • 外部系统
    • 系统治理
    • 参考文献
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  • 1. Oracle
  • 2. Trading platform

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  1. QIAN V1 whitepaper

External systems

PreviousStability managementNextSystem governance

Last updated 4 years ago

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1. Oracle

The system needs access to the external price in real-time to monitor the change of guarantee ratio in order to initiate CSA state change and control risk. The oracle provides the system with timely information on external prices, including stablecoin QUSD, governance token KUN and reserve tokens, and key parameters such as the guarantee ratio QiQ_iQi​.

In the absence of a mature decentralized oracle solution, the system will maintain a whitelist of price feed addresses, which is governed by the community vote to add or remove. Each price feed contains price information and validity, and the system calculates the median value from all valid price feeds as the system quote. When a generally accepted oracle solution for KUN holders is available, the system will switch to the corresponding decentralized oracle to guarantee fairness, impartiality, openness, and transparency of the price feed mechanism process.

2. Trading platform

When reserve asset price falls rapidly, the system may face a temporary deficiency of reserve assets, and according to the negative interest rate mechanism, interest may be paid to users. In the course of daily operation, the QIAN system may also earn interest income through flash loans or other services. Therefore, the QIAN system may have a surplus or a deficit during its operation, it is necessary to introduce an external trading platform to achieve the bidding transactions between QUSD, KUN, and reserve assets.