diff --git a/fedilogue/tables.sql b/fedilogue/tables.sql
index 2059b38..6ca61fd 100644
--- a/fedilogue/tables.sql
+++ b/fedilogue/tables.sql
@@ -13,6 +13,7 @@ CREATE TABLE activities (
 	id SERIAL PRIMARY KEY,
 	document JSONB,
     normalized TEXT,
+    identifiedat TIMESTAMP with time zone DEFAULT now(),
     instance VARCHAR(1000) NOT NULL
 );
 
@@ -34,10 +35,14 @@ ALTER TABLE activities
     GENERATED ALWAYS AS (to_tsvector('english', normalized)) STORED;
 
 
+CREATE UNIQUE INDEX actors_uri_idx ON actors ( (document->>'id') );
+CREATE UNIQUE INDEX activities_uri_idx ON activities ( (document->>'id') );
+
+CREATE INDEX activities_published_idx ON activities ( (document->>'published') );
+CREATE INDEX activities_identifiedat_idx ON activities (identifiedat);
 
 CREATE INDEX normalized_idx ON activities USING gin(normalized_tsvector);
 
 CREATE INDEX actors_id_idx ON actors (id);
 CREATE INDEX activities_id_idx ON activities (id);
-CREATE UNIQUE INDEX actors_uri_idx ON actors ( (document->>'id') );
-CREATE UNIQUE INDEX activities_uri_idx ON activities ( (document->>'id') );
+