{HEAD ~ The distributed index} may be used, for example, to route messages between participating peers, in identifying and authenticating {TAIL ~ peers} wishing to participate, in notifying peers of newly joined peers, and in notifying joining peers of participating peers 
used in authenticating
{ HEAD ~ The distributed index } may be used , for example , to route messages between participating peers , in identifying and authenticating { TAIL ~ peers } wishing to participate , in notifying peers of newly joined peers , and in notifying joining peers of participating peers
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH