The Times shows us its web savvy:

An article in Science Times yesterday about a dispute between astronomers over credit for the discovery of 2003 EL61, a large icy object in the outer solar system, misstated the term for the identification number assigned by the Internet to every computer. The number, by which American astronomers were able to trace a Spanish group's visits to their Web site before the discovery was announced, is called an IP address (for "Internet protocol"), not IPP numbers.