HHTT.

HHTT, short for Horrible Horrendous Terrible Tremendous, was a small Bitcoin mining poolMining poolA group of miners who share the work of finding blocks and split the rewards, so each gets paid steadily instead of rarely. run by a programmer known online as Fireduck. In August 2012 the pool’s site introduced him as “the programmer behind Satoshidice”, a Bitcoin betting game. He wrote the pool’s server software, SockThing, and published it. By the pool’s own list it found its first block on 7 August 2012; mempool.space credits it with 623 blocks, from 7 September 2012 to 26 December 2013.

HHTT first paid miners a set amount for each piece of work they sent, known as pay per share. By the end of 2013 it shared each block’s reward among the miners who had sent the most recent work, a method called PPLNS, and gave half of a block’s transaction fees to the miner whose machine found it. From early 2013 the first transaction in its blocks split the reward equally between four of the pool’s addresses, each made to resemble one word of its name, plus a small output to that miner. The pool paid its other miners from there. These are payments to the pool’s miners, separate from the transactions confirmed inside the block.

The pool was known for the odd messages it put in its blocks, a line at a time, such as “came into the world naked, wet and screaming” in October 2012 and “airlift that to Kansas” in January 2013. On 31 December 2013 its site told miners: “THIS POOL WILL BE SHUTDOWN VERY SOON. MOVE YOUR MINERS.” Fireduck wrote that he could let it run, but that its chance of finding a block had become so low that miners would do better elsewhere; the day before, its page had estimated about 134 hours per block. Its last block had come on 26 December.