'How to know that a Chainlink node doesn't manipulate my data
I'm trying to find some information about the security of using Chainlink as a tool for external API calls. The following is my scenario
- My smart contract initiates API call using Chainlink with some parameters
- Node picks up the request, does external call
- Node receives response from API
- Node writes result back to my smart contract
- My smart contract finishes the execution
How can I validate that the Chainlink node does not change any of the parameters in step 2-4? Is there some mathematical validation like we have with the blockchain that I can confirm?
The questions comes up because of regulatory requirement that I have and it would be nice if I could simply link to some proof that data cannot be manipulated by a Chainlink node or if manipulation is possible, what could I do to validate the data was not manipulated and/or lower the chance?
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