Time-paradox duplicate

A time paradox duplicate is a possible result of backwards time travel that can occur when an entity uses the time code more than once before returning to the present. However, the time code self-corrects paradoxes by infusing all duplicates with doom radiation, dooming all duplicates.

Mechanics of the Paradox and Self-Correction
1. An entity uses the time code to travel to the past.

2. Once in the past, the entity uses the time code a second time.

3. The entity, upon encountering the version of itself from step 2, takes some step to prevent the time travel that occurred in step 2.

The paradox is thus that the second instance of time travel has been inadvertently removed from the timeline.

Known Duplicates
All of these have met their doom.
 * Lars Fillmore (Fry) - created when original goes back in time for free pizza. He was killed after throwing himself onto Bender's duplicate, which then exploded.
 * Nudar - created when Nudar travels back in time to the day before as a test of the time code. He was killed after getting crushed by The Professor's Smell-O-Scope.
 * Hermes' body - created when Bender goes back in time and gets Hermes' decapitated body. It was lost after getting crushed by a crystal chandellier.
 * Bender - The first one to die was created when he travels back in time to use the toilet. He was killed after his Auto Destruct Sequence was triggered by a conflict in his programming.
 * Hundreds of other Benders - created via him going back in time over and over to steal stuff for Nudar, and when he went back in time to tattoo Fry. They all exploded when "Bender from way at the end" asked them to stick around. This also caused a fractal edge rip in the universe, the Anomaly, which is a gateway to Yivo's universe.
 * Fry, Bender and the Professor - created from the Forward time machine. The time duplicate versions of them are crushed by the original versions when the machine appears directly above them after time traveling.
 * It can be argued that these were not paradoxes, as they were the universe 2 universes ahead of the originals. No paradox was created, since they were from a different universe. Moreover the doom field and the time code were not involved in this incident.