# Ordered Log

> An append-only sequence of records that preserves the order in which they were written.

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

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Message Relay](https://banes-lab.com/records/lexicon/message-relay.md) and before [Own Data](https://banes-lab.com/records/lexicon/own-data.md).

## Category

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

## Required by

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

## Linked from

- [Event / Messaging / Asynchronous Architecture](https://banes-lab.com/ontology/principles/architecture-category-event-messaging-asynchronous-architecture.md)