jmstresstestbitcoin.cashL Toomin's writeup on block propogation, it's a good read : https://medium.com/@j_73307/block-propagation-data-from-bitcoin-cashs-stress-test-5b1d7d39a234
https://whatsonchain.com/tx/50e87fcdbd9edd26adb6aec89b43917435f9482f2ebd7bc73f3326e0b2ed6ef7