<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Dear all,<div class=""><br class=""></div><div class="">For the past two months, Andrew Clifford, Andrew Stone, @sickpig, Peter Tschipper and I have been collecting empirical data regarding block propagation with Xthin — both across the normal P2P network and over the Great Firewall of China. We have six Bitcoin Unlimited (BU) nodes running, including one located in Shenzhen and another in Shanghai, and we have collected data on the transmission and reception for over nine thousand blocks.</div><div class=""><br class=""></div><div class="">Here is a link to Part 1(Methodology) of our 5 part article series on the testing we performed for this exciting new block relay technology:</div><div class=""><br class=""></div><div class=""><a href="https://medium.com/@peter_r/towards-massive-on-chain-scaling-presenting-our-block-propagation-results-with-xthin-da54e55dc0e4" class="">https://medium.com/@peter_r/towards-massive-on-chain-scaling-presenting-our-block-propagation-results-with-xthin-da54e55dc0e4</a></div><div class=""><br class=""></div><div class="">We thank Jihan Wu from AntPool for the block source within Mainland China and @cypherdoc for the funding. </div><div class=""><br class=""></div><div class="">Best regards,</div><div class="">Peter</div></body></html>