When we last wrangled at length over the treatment of "equal contribution" authorships on the CV certain opinions emerged. There were those who felt very strongly that re-ordering, say, the first and second listed authors (who contributed equally) was fraudulent and unethical. I was unable to get these types to express similar outrage about someone conveniently failing to note the equal contribution. I speculated that the listed-first author was going to be more likely to do so.
I am happy to report that I have recently run across an example in which the listed-first author was careful to denote equal contribution. Kudos to you, my ethical friend!