jm èú'xBzþ2MsêRRk¡Å³,TÕâ5r'ÍLIt's an alternate chain with more proof of work taking over the current chain. Presumably the one nChain is mining has no transactions on it.
https://whatsonchain.com/tx/1144aa383015b09fd1a8e4b64bc973eb39cad3c58861e3e4bd14fe987f40b04c