Identification of the same resource across many domains

Hi,

I would like to know if there is a single URI that can be understood across
many domains (or datasets). For example the same entity New York City is
defined by the following URI:

for DBpedia : http://dbpedia.org/page/New_York_City
for Yago:  http://yago-knowledge.org/resource/New_York_City
for The New York Time : http://data.nytimes.com/N46020133052049607171

Is there a single URI or naming convention (or a software) that can be
understood by these datasets?
I am looking for a unique identifier independent of the domain or the
location of the resource but that can be understood within a specific
domain. Any suggestion is welcome. Thanks.

Regards
Olivier