1

is anybody aware of some smart-contract that can be used as external "trustable" oracle for no-so-simple scenarios, like for example calculating the number of non-festive days passed since a given date or time-windows.

I'm thinking of some external (trusted) entity that is allowed to fill such calendar and sign when a new day has passed, ...

I'm thinking about use-cases like: - Some smart-contract internal state change or some payment must be allowed just after 10 working days, excluding weekends.

0

2 Answers 2

2

Oracle sounds complicated and gas gushing approach.

I suggest this:

  • A special transaction parameter be generated and signed by your own server

  • The server calculates the days

  • The information is passed into the smart contract in the transaction payload, as a function parameter

  • The smart contract verifies that the result is honest by checking the signature of the parameter, so that it was your server that made the calculation

However, for better judgement, I kindly ask you to edit your question and add more background information about your business case.

2

Chainlink may be what you’re looking for: https://chain.link

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.