XRI

URI-compatible identifier scheme and resolution protocol for abstract identifiers, i.e., identifiers that are location-, application-, and transport-independent, and thus can be shared across any number of domains and directories

http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=xri

http://www.windley.com/archives/2005/12/xris_xdis_and_i.shtml