Common definitions

schema/common.json

+{
+  "$schema": "http://json-schema.org/schema#",
+  "id": "https://uri.etsi.org/ngsi-ld/schema/Entity.json",
+  "title": "NGSI-LD Entity",
+  "description": "NGSI-LD Entity",
+  "definitions": {
+    "LdContext": {
+      "anyOf": [
+        {
+          "type": "object"
+        },
+        {
+          "type": "string",
+          "format": "uri"
+        },
+        {
+          "type": "array",
+          "items": {
+            "anyOf": [
+              {
+                "type": "string",
+                "format": "uri"
+              },
+              {
+                "type": "object"
+              }
+            ]
+          }
+        }
+      ]
+    },
+    "Dates": {
+      "type": "object",
+      "properties": {
+        "createdAt": {
+          "type": "string",
+          "format": "date-time"
+        },
+        "modifiedAt": {
+          "type": "string",
+          "format": "date-time"
+        }
+      }
+    }
+  }
+}