--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/models/paste.rb	Sun Aug 26 11:28:23 2012 -0700
@@ -0,0 +1,10 @@
+class Paste < ActiveRecord::Base
+  attr_accessible :paste
+  before_validation :set_paste_hash
+  validates :paste, :paste_hash, :ip, :presence => true
+  validates :paste, :length => { :maximum => 1_000_000 }
+
+  def set_paste_hash
+    self.paste_hash = Digest::SHA512.hexdigest(paste)
+  end
+end