> For the complete documentation index, see [llms.txt](https://docs.nomad.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nomad.xyz/the-nomad-protocol/off-chain-agents/processor.md).

# Processor

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Processors are **permission-less and trust-less**. This means that anyone can operate a Processor for channels they are interested in.
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The processor proves the validity of pending messages and sends them to end recipients.

**It is an off-chain actor that does the following:**

* Observe the home
* Maintain local merkle tree with all leaves
* Observe 1 or more replicas
* Maintain list of messages corresponding to each leaf
* Generate and submit merkle proofs for pending (unproven) messages
* Dispatch proven messages to end recipients