I want to find a way to check whether the parachain's genesis file/WASM can be changed after getting the slot but before creating the first block by the users who registered the parachain. Is that possible?

I discovered that two extrinsic, forceSetcurrentCode and forceSetCurrentHead, can be used, but you have to send them by the sudo user, not the user who registered parachain.

1 Answer 1


Yes, that's the calls you need.

You can only open a referendum on relaychain to update the genesis.

And I think this is reasonable.

Because users bid/contribute for your parachain slot, you shouldn't casually change the genesis.

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