diff --git a/lexicons/my/spoor/content/external.json b/lexicons/my/spoor/content/external.json
new file mode 100644
index 0000000..fc6f470
--- /dev/null
+++ b/lexicons/my/spoor/content/external.json
@@ -0,0 +1,42 @@
+{
+  "lexicon": 1,
+  "id": "my.spoor.content.external",
+  "defs": {
+    "main": {
+      "type": "record",
+      "key": "nsid",
+      "record": {
+        "type": "object",
+        "required": [ "source", "queryable" ],
+        "properties": {
+          "titles": {
+            "type": "array",
+            "minLength": 1,
+            "items": {
+              "type": "ref",
+              "ref": "my.spoor.content.title"
+            }
+          },
+          "source": {
+            "type": "string",
+            "description": "An nsid for a specific data source. The domain authority governs how to process the queryable",
+            "format": "nsid",
+            "knownValues": [
+              "my.spoor.content.external#tvdb"
+            ]
+          },
+          "queryable": {
+            "type": "union",
+            "description": "All the data needed to query the content from the source",
+            "refs": []
+          },
+          "overrides": {
+            "type": "union",
+            "description": "User defined overrides for the returned content",
+            "refs": []
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/lexicons/my/spoor/content/media.json b/lexicons/my/spoor/content/media.json
new file mode 100644
index 0000000..e8897c2
--- /dev/null
+++ b/lexicons/my/spoor/content/media.json
@@ -0,0 +1,53 @@
+{
+  "lexicon": 1,
+  "id": "my.spoor.content.media",
+  "defs": {
+    "main": {
+      "type": "record",
+      "key": "nsid",
+      "record": {
+        "type": "object",
+        "required": [ "titles", "lastUpdated" ],
+        "properties": {
+          "titles": {
+            "type": "array",
+            "minLength": 1,
+            "items": {
+              "type": "ref",
+              "ref": "my.spoor.content.title"
+            }
+          },
+          "durationData": {
+            "type": "union",
+            "refs": [
+              "my.spoor.content.media#television",
+              "my.spoor.content.media#book"
+            ]
+          },
+          "posterImage": {
+            "type": "blob",
+            "accept": ["image/png", "image/jpeg"],
+            "maxSize": 1000000
+          },
+          "lastUpdated": {
+            "type": "string",
+            "format": "datetime",
+            "description": "Client-declared timestamp for when this activity was last updated"
+          }
+        }
+      }
+    },
+    "television": {
+      "type": "object",
+      "properties": {
+        "episodes": { "type": "integer", "minimum": 0}
+      }
+    },
+    "book": {
+      "type": "object",
+      "properties": {
+        "chapters": { "type": "integer", "minimum": 0}
+      }
+    }
+  }
+}
diff --git a/lexicons/my/spoor/content/title.json b/lexicons/my/spoor/content/title.json
new file mode 100644
index 0000000..3368a47
--- /dev/null
+++ b/lexicons/my/spoor/content/title.json
@@ -0,0 +1,29 @@
+{
+  "lexicon": 1,
+  "id": "my.spoor.content.title",
+  "defs": {
+    "main": {
+      "type": "object",
+      "properties": {
+        "translationType": { 
+          "type": "string",
+          "format": "nsid",
+          "knownValues": [
+            "#titleHomophonic", "#titleNative", "#titleTranslation"
+          ]
+        },
+        "lang": {
+          "type": "string",
+          "format": "language"
+        },
+        "value": { "type": "string", "minLength": 1 }
+      }
+    },
+    "titleHomophonic": { "type": "token",
+      "description": "A phonetic transcription of the native title such that when read it will sound like the native title." },
+    "titleNative": { "type": "token",
+      "description": "The title in its native script" },
+    "titleTranslation": { "type": "token",
+      "description": "A translation of the title" }
+  }
+}
diff --git a/lexicons/me/woach/feed/activity.json b/lexicons/my/spoor/log/activity.json
similarity index 60%
rename from lexicons/me/woach/feed/activity.json
rename to lexicons/my/spoor/log/activity.json
index 67ab025..adb3a1e 100644
--- a/lexicons/me/woach/feed/activity.json
+++ b/lexicons/my/spoor/log/activity.json
@@ -1,10 +1,10 @@
 {
   "lexicon": 1,
-  "id": "me.woach.feed.activity",
+  "id": "my.spoor.log.activity",
   "defs": {
     "main": {
       "type": "record",
-      "description": "A single activity log for a specific show",
+      "description": "A single activity (spoor) for a specific session",
       "key": "tid",
       "record": {
         "type": "object",
@@ -13,13 +13,15 @@
         "properties": {
           "session": { "type": "ref", "ref": "com.atproto.repo.strongRef" },
           "progress": {
-            "type": "integer",
-            "description": "The episode/chapter number for the content consumed."
+            "type": "union",
+            "refs": [
+              "#progressIndex"
+            ]
           },
           "performedAt": {
             "type": "string",
             "format": "datetime",
-            "description": "User-declared timestamp for when they performed the activity."
+            "description": "User-declared timestamp for when they performed the activity. Null implies unknown time."
           },
           "createdAt": {
             "type": "string",
@@ -28,6 +30,14 @@
           }
         }
       }
+    },
+    "progressIndex": {
+      "type": "object",
+      "description": "The index of the content consumed. Content must be indexable",
+      "required": [ "index" ],
+      "properties": {
+        "index": { "type": "integer" }
+      }
     }
   }
 }
diff --git a/lexicons/my/spoor/log/session.json b/lexicons/my/spoor/log/session.json
new file mode 100644
index 0000000..4da7738
--- /dev/null
+++ b/lexicons/my/spoor/log/session.json
@@ -0,0 +1,32 @@
+{
+  "lexicon": 1,
+  "id": "my.spoor.log.session",
+  "defs": {
+    "main": {
+      "type": "record",
+      "description": "A session of consuming some content",
+      "key": "tid",
+      "record": {
+        "type": "object",
+        "required": ["content", "createdAt"],
+        "properties": {
+          "content": { "type": "ref", "ref": "com.atproto.repo.strongRef" },
+          "label": {
+            "type": "string",
+            "maxGraphemes": 64,
+            "maxLength": 640
+          },
+          "otherParticipants": {
+            "type": "array",
+            "items": { "type": "string", "format": "did" }
+          },
+          "createdAt": {
+            "type": "string",
+            "format": "datetime",
+            "description": "Client-declared timestamp for when this activity was created"
+          }
+        }
+      }
+    }
+  }
+}