Authorship solution
A solution to a perennial problem: Co-first “author ordering determined by coin flip” – eg
http://onlinelibrary.wiley.com/wol1/doi/10.1002/anie.201604431/full & https://arxiv.org/pdf/1412.6980v8.pdf
similar
https://arxiv.org/pdf/1412.6980v8.pdf
∗Equal contribution. Author ordering determined by coin flip over a Google Hangout.