{
  "artifact": {
    "description": "Backup targets with scope and retention policy, delivered to cloudatasave or any backup-capable mode. Declares what to back up, at what granularity, and for how long to retain.",
    "id": "backup-policy-binding",
    "layers": [
      {
        "description": "contract.ncl — BackupPolicyBindingContext, BackupTarget, BackupScope, RetentionPreset",
        "media_type": "application/vnd.ontoref.domain.contract.v1",
        "required": true
      },
      {
        "description": "example.json — sample context for docker-mailserver + odoo backup targets",
        "media_type": "application/vnd.ontoref.domain.example.v1",
        "required": false
      }
    ],
    "media_type": "application/vnd.ontoref.domain.v1",
    "uses_registry": "primary",
    "version": "0.1.0"
  }
}