gistfile1.txt

# Hitting
http://otter.topsy.com/trackbacks.js?callback=jsonp1272404811434&url=http%3A%2F%2Fzachholman.com%2F2010%2F04%2Fapple-is-petrified%2F&perpage=50

# Returns this JSON with only one result:
jsonp1272404811434({"request":{"parameters":{"url":"http://zachholman.com/2010/04/apple-is-petrified/","perpage":"50"},"response_type":"js","resource":"trackbacks","url":"http://button.topsy.com/trackbacks.js?perpage=50&url=http%3A%2F%2Fzachholman.com%2F2010%2F04%2Fapple-is-petrified%2F"},"response":{"page":1,"topsy_trackback_url":"http://topsy.com/tb/zachholman.com/2010/04/apple-is-petrified/","total":1,"perpage":50,"list":[{"permalink_url":"http://twitter.com/alexanderkahn/status/12966881983","date":1272404753,"content":"RT @holman: Why Apple (probably) won't fix iTunes:\n\nhttp://zachholman.com/2010/04/apple-is-petrified","date_alpha":"58 seconds ago","author":{"name":"Alex Kahn","url":"http://twitter.com/alexanderkahn","topsy_author_url":"http://topsy.com/twitter/alexanderkahn","photo_url":"http://a3.twimg.com/profile_images/670702971/Photo_on_2010-02-01_at_23.35__3_normal.jpg","influence_level":1},"type":"tweet"}]}});
2	

# ...even though http://topsy.com/s/zachholman+petrified returns two other results.
# Now, that search has two different titles and a 
# trailing slash / non-trailing slash ambiguity. 
# Is topsy confused on which is the canonical URL?