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<br>
A decentralized oracle network consisting of three key smart contracts:
### tl; dr
<br>
* a decentralized oracle network consisting of three key smart contracts:
* a reputation contract: keep track of data providers' performance.
* an order-matching contract: selects bids from oracles using the reputation contract.
* an aggregation contract—and an off-chain registry of data providers.
* one of the main challenges with such a decentralized approach is the formulation of the aggregation function.
* chainlink proposes calculating a weighted response, allowing a validity score to be reported for each oracle response.
<br>
One of the main challenges with such a decentralized approach is the formulation of the aggregation function.
ChainLink proposes calculating a weighted response, allowing a validity score to be reported for each oracle response.
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### resources