Cross-blockchain bridging in POA

Besides real-world-authenticated PoA, bridging seems to be one of the other distinguishing fancy new features POA brings to the table.

Where can I learn more about POA bridging capabilities? My limited understanding is that it connects various ETH-based blockchains together, so ETH, ETC, EXP, POA can all talk to each other. Which is to say, a contract running on POA network can execute contract methods from other networks. How does it pay though for the execution?

Thanks, Michael

The best place to start is to read our blog posts

Overview of bridging and a Bridge Wizard DApp

Use case how bridges can be used for shared emission between two networks

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