diff --git a/objects/blog/definition.json b/objects/blog/definition.json
index b471525..97980b6 100644
--- a/objects/blog/definition.json
+++ b/objects/blog/definition.json
@@ -9,7 +9,7 @@
       "misp-attribute": "text"
     },
     "title": {
-      "description": "Raw post.",
+      "description": "Title of blog post.",
       "ui-priority": 1,
       "misp-attribute": "text"
     },
@@ -23,6 +23,12 @@
       "ui-priority": 1,
       "misp-attribute": "link"
     },
+    "archive": {
+      "description": "Archive of the original document (Internet Archive, Archive.is, etc).",
+      "ui-priority": 1,
+      "multiple": true,
+      "misp-attribute": "link"
+    },
     "type": {
       "description": "Type of blog post.",
       "ui-priority": 1,
@@ -88,7 +94,7 @@
       "misp-attribute": "text"
     }
   },
-  "version": 12,
+  "version": 13,
   "description": "Blog post like Medium or WordPress.",
   "meta-category": "misc",
   "uuid": "1f165fc0-b158-498f-8bc8-6dc3d2822bb1",
diff --git a/objects/forged-document/definition.json b/objects/forged-document/definition.json
index 5ed512e..66edaad 100644
--- a/objects/forged-document/definition.json
+++ b/objects/forged-document/definition.json
@@ -29,6 +29,7 @@
       "ui-priority": 1,
       "misp-attribute": "text",
       "disable_correlation": true,
+      "multiple": true,
       "sane_default": [
         "email",
         "letterhead",
@@ -66,6 +67,12 @@
       "ui-priority": 1,
       "misp-attribute": "link"
     },
+    "archive": {
+      "description": "Archive of the original document (Internet Archive, Archive.is, etc).",
+      "ui-priority": 1,
+      "multiple": true,
+      "misp-attribute": "link"
+    },
     "objective": {
       "description": "Objective of the forged document.",
       "ui-priority": 1,
@@ -92,7 +99,7 @@
       "misp-attribute": "datetime"
     }
   },
-  "version": 5,
+  "version": 6,
   "description": "Object describing a forged document.",
   "meta-category": "file",
   "uuid": "7e927620-b97c-4b00-98c0-8c0184d83d21",
diff --git a/objects/leaked-document/definition.json b/objects/leaked-document/definition.json
index 88fc133..6adf927 100644
--- a/objects/leaked-document/definition.json
+++ b/objects/leaked-document/definition.json
@@ -34,6 +34,7 @@
       "ui-priority": 1,
       "misp-attribute": "text",
       "disable_correlation": true,
+      "multiple": true,
       "sane_default": [
         "email",
         "letterhead",
@@ -71,6 +72,12 @@
       "ui-priority": 1,
       "misp-attribute": "link"
     },
+    "archive": {
+      "description": "Archive of the original document (Internet Archive, Archive.is, etc).",
+      "ui-priority": 1,
+      "multiple": true,
+      "misp-attribute": "link"
+    },
     "objective": {
       "description": "Reason for leaking the document.",
       "ui-priority": 1,
@@ -98,7 +105,7 @@
       "misp-attribute": "datetime"
     }
   },
-  "version": 5,
+  "version": 6,
   "description": "Object describing a leaked document.",
   "meta-category": "file",
   "uuid": "ea145ecd-b3c2-4f57-ac11-c16e883c4247",
diff --git a/objects/meme-image/definition.json b/objects/meme-image/definition.json
index eb59d9f..edb88ec 100644
--- a/objects/meme-image/definition.json
+++ b/objects/meme-image/definition.json
@@ -66,6 +66,12 @@
       "ui-priority": 1,
       "misp-attribute": "link"
     },
+    "archive": {
+      "description": "Archive of the original document (Internet Archive, Archive.is, etc).",
+      "ui-priority": 1,
+      "multiple": true,
+      "misp-attribute": "link"
+    },
     "objective": {
       "description": "Objective of the meme.",
       "ui-priority": 1,
@@ -92,7 +98,7 @@
       "misp-attribute": "datetime"
     }
   },
-  "version": 5,
+  "version": 6,
   "description": "Object describing a meme (image).",
   "meta-category": "file",
   "uuid": "6f6c3b61-f085-475e-93df-2e2d9c2fb0f6",
diff --git a/objects/microblog/definition.json b/objects/microblog/definition.json
index 309c11e..c5e2f89 100644
--- a/objects/microblog/definition.json
+++ b/objects/microblog/definition.json
@@ -19,6 +19,12 @@
       "misp-attribute": "link",
       "to_ids": false
     },
+    "archive": {
+      "description": "Archive of the original document (Internet Archive, Archive.is, etc).",
+      "ui-priority": 1,
+      "multiple": true,
+      "misp-attribute": "link"
+    },
     "type": {
       "description": "Type of the microblog post",
       "ui-priority": 1,
@@ -103,7 +109,7 @@
       "multiple": true
     }
   },
-  "version": 12,
+  "version": 13,
   "description": "Microblog post like a Twitter tweet or a post on a Facebook wall.",
   "meta-category": "misc",
   "uuid": "8ec8c911-ddbe-4f5b-895b-fbff70c42a60",