# Decentralized Sequencer Set

AltLayer has a dedicated network called the Beacon Layer that serves as the global  sequencer set.  When AltLayer provisions a rollup, nodes from the Beacon layer are selected based on their stake.\
\
A user submits a request for a rollup via our dashboard or the SDK and specifies the requirements such as the type of VM, number of sequencers and the minimum stake and the allowed token list.

<figure><img src="/files/gjBRRpLLBhKIjmwk7yCj" alt=""><figcaption></figcaption></figure>

The sequencer layer then assigns the nodes for rollup and once all the sequencers are assigned, the rollup becomes operational.

<figure><img src="/files/RGhqyhkqQ7gIXIACJrF3" alt=""><figcaption></figcaption></figure>

A common decentralized sequencer set could also be used to ensure cross-chain atomic messaging.


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