DeFi oracles, explained

DeFi oracles, explained


The oracle problem and latency are the major risks of running oracles on a blockchain.

The oracle problem arises due to a trust conflict that centralized third-party systems bring to smart contracts and blockchain systems that are decentralized. Because the data provided by oracles is directly fed into smart contracts, which function based on this data, it’s evident that oracles hold hierarchical power in the execution of the smart contracts. Due to these immense implications, it’s critical for DeFi apps and protocols to have oracles with reliable data and little or no latency. 

Broadly, oracle solutions can be classified into two categories: fast but insecure, and secure but slow. The first category mainly applies to decentralized oracles, as they have low latency rates. Due to a vulnerability to various game theory attacks, a majority of DeFi applications run on centralized or semi-centralized oracles.

Most decentralized oracles use the ShellingCoin mechanism, wherein independent sources report the data without coordinating with

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