Refs #547 -- Add content about using Pyth oracle to obtain random numbers

[jackleeio]

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• A relating issue is created: Creating tutorials for Witnet (or future pyth) randomness #547 (<- fill the issue number here)
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Name	Status	Preview	Comments	Updated (UTC)
conflux-documentation	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 24, 2024 1:45pm

[darwintree]

I've followed your tutorial and modified the entropyCallback function to see if the code works(https://evmtestnet.confluxscan.io/address/0x378b8745424aa807edea5c25fe18c7af51c1205d?tab=contract-viewer)

    function entropyCallback(
        uint64 sequenceNumber,
        // If your app uses multiple providers, you can use this argument to
        // distinguish which one is calling the app back.
        address provider,
        bytes32 randomNumber
    ) internal override {
        // Implement your callback logic here.
        latestRandomness = uint256(randomNumber);

        // Use the random number
    }

As there is no project using the pyth entropy, currently pyth entropy is not enabled for eSpace mainnet.

I would know if entropyCallback is triggered from your end? If it works, I think it can be merged into the main barnch as reference for future projects, elsewise it might not be a good idea to merge this pull request at present.

But don't worry, no matter this PR will be merged or not, we would grant you corresponding rewards

[jackleeio]

In my test contract, entropyCallback is not triggered either.

[jackleeio]

It seems to be a problem with Pyth. I made the tutorial based on their documentation. https://docs.pyth.network/entropy/generate-random-numbers/evm

[darwintree]

It seems to be a problem with Pyth. I made the tutorial based on their documentation. https://docs.pyth.network/entropy/generate-random-numbers/evm

Thanks. Then I'll check with pyth.