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I'm thinking about a particular use case where a smart contract in a private chain could send txs to the public chain (in my case txs would be functions calls of a smart contract in the public network). In my knowledge it may not possible without passing through a server side interaction acting as a proxy between the two networks(too much centralized) but I hope that there's some implementation that I still don't know.
thank you for your help
The ways for two blockchains to communicate
A centralised server
All private blockchain nodes fully sync with public chain and the public chain is used for communications
Using some not yet existing solution like Cosmos hub and Interblockchain communication
