OCI Image Format Specification

1. Overview

   Image manifest, index, layers and configuration.

2. Content descriptors

   mediaType, digest, size and artifactType.

3. Image layout

   Directory layout with blobs/, index.json and oci-layout.

4. Image manifest

   config, layers, subject and annotations.

5. Image index

   Multi-platform manifest lists.

6. Image configuration

   Architecture, os, rootfs diff_ids and history.

7. Image layer filesystem changeset

   Applying tar changesets and whiteouts.

8. Media types

   Registered media types for OCI artifacts.

9. Annotations

   Pre-defined annotation keys such as org.opencontainers.image.source.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.