# Registering Chain

To utilize the sequencing services, a Rollup needs to register themselves to the Cero network. This allows Cero network to informed about the Rollup with crucial information required for functioning. Based on this information, Cero is able to perform the required checks when transactions are provided to the network. 

The registered details include:

1. Chain Id
2. Rollup Type
3. Chain Name
4. Token Name
5. Token Symbol
6. DA Services
7. Rollup Owner
8. Rollup Contract Address


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