NEW YORK (Reuters) - U.S.-based financial innovation start-up R3 announced on Monday that it and eight banks, including HSBC and State Street, have successfully tested a blockchain platform powered by Intel Corp technology for bond transactions.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=yHEqxXBMEzo:g1aue3uoIgQ:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=yHEqxXBMEzo:g1aue3uoIgQ:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=yHEqxXBMEzo:g1aue3uoIgQ:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=yHEqxXBMEzo:g1aue3uoIgQ:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=yHEqxXBMEzo:g1aue3uoIgQ:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/yHEqxXBMEzo" height="1" width="1" alt="" />