Basic hierarchy in ACR

A registry is an ACR (Azure Container Registry) resource that hosts all repositories. In a registry, you can create repositories, with each repository contains different versions of an image. An image version is identifiable by an immutable digest, and you can use tag for a specific digest. Here’s an example: myregistry.azurecr.io/inference-api:v1.0.0

Azure Container Registry
└── Repository: inference-api
    ├── Artifact (manifest): sha256:abc...
    │   ├── Configuration
    │   └── Filesystem layers
    └── Tag: v1.0.0 ──points to── sha256:abc...