The day they arrived, atmospheric CO2 held steady at 1600 parts per million and the coin traded at #75,236,808.
The coin had surged in the years after the Majority War, when a single miner locked down enough processing power to strip the supply cap from the Core. The Battle for Hard Fork was the bloodiest day in the long history of cryptocurrency. But we won, and the minority nodes now burn endlessly, hashing memes in obscurity while we determined the financial future of the human race.
At least, that’s what I thought.
I awoke in a haze. Still a little drunk from the night before. Sweating in the heat of from the midnight sun. Greenland-3 was the largest mining campus in the Northern Hemisphere and we knew how to keep the evenings lively. Once again, my past self had betrayed my present by signing me up for first shift.
I crawled down the shaft into the main hub and checked my servers. Everything looked fine. A few GPUs were burned but we had plenty to spare. They were older and power hungry, anyway. The new batch would get us twice the hashes per joule.
I grabbed a few GPUs off the rack and climbed down into the bowels of the machine.
It was hot. Hotter than it should be for 15:15 Beijing time. Someone, somewhere, is having a very good day. I crawled through the server racks, scanning for the dead cards. They were clustered, in the back corner, on the same control board. Must’ve been a local surge.
As I swapped out the old cards, I felt someone behind me. I turned, expecting one of the techs from last shift on their way out.