I used a 32 node OpenMosix cluster/lab to CPU mine just shy of 50K BTC one lazy semester break after finding out about this BitCoin thing and thinking “this will make a neat distributed stress test” much more interesting than just running the usual CPU benchmark toy programs. I fired it up, let the shell scripts fan it out till every core in the cluster was busy, and checked back about two weeks later when the next semester started. I made a note of the number and my shell scripts, deleted the wallet because its just useless data on my preciously small university school student home directory. I moved on with my life and completely forgot about it until recently when researching some cluster history I recalled the OpenMosix work I had done at University, the various ways I had used it, and to my temporary horror, the BitCoin benchmark.
I’ve come to think of it a bit like a failed lottery ticket or a bad bet at a casino. I had no way of knowing at the time 10 years ago, that the couple of megabytes of space these files took up, could one day be worth half a billion dollars. That’s not to say i’m 100% zen about it, it does still hurts a little to think about sometimes though.
Edit: Corrected my time window, a decade does wonders for compressing the experience of time passing, thinking about it again reminded me that the bitcoin block reward meant I must have run it over the semester break, not overnight.