# Event Schema

> A formal definition of the structure and fields of an event's payload.

Record: `lex:event-schema`
Kind: artifact
Layer: [Execution Core](https://banes-lab.com/records/layer/execution-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lex-event-schema

## category

- [Event Messaging Async](https://banes-lab.com/records/lex-category/event-messaging-async.md)

## referenced-by

- [Event Stream](https://banes-lab.com/records/arch/event-stream.md)