One of the things we are lacking when talking about mining pools (and their relative sizes) is good graphs. Zchain’s miner statistics page is a great resource, but it only shows four rolling snapshots of the mining space, so it’s hard to picture how it has evolved over time.
I spent some time today collecting data from the block chain and figuring out how best to graph it. This is what I’ve come up with:
- The graph includes all blocks up to height 338,000.
- Miners are sorted vertically by total blocks mined over the entire range. I’ve identified as many mining pool addresses as I can - several of the visible bands have multiple addresses associated with them.
- I only added the larger miners to the legend, for obvious space reasons.
- The horizontal coordinates use the block timestamp from the first block in the bucket (i.e. blocks 1, 1001, 2001, and so on).
Here is a graph focusing on the block range 275,000 to 338,000 (note that the colours do not match the previous graph, because the miners are sorted based on total blocks mined just in this range):
I’ll continue poking at the data (in all that spare time I have when we’re not working on Sapling ) to see if I can extract any other useful graphs. Suggestions welcome!