The blockStats.js script uses the mempool.space API to sequentially query the data for the last 800 * 15 blocks, storing the blockheight and poolID in a timestamped CSV file.
The findSeven.js script scans through the CSV file to find occurrences where seven blocks in a row were found by the same mining pool.
The idToPool.js takes a pool ID as an argument, and returns the full details about the pool. For example, node idToPool.js returns details about Foundry USA:
{
poolId: 112,
name: 'Foundry USA',
link: 'https://foundrydigital.com',
blockCount: 44968,
rank: 1,
emptyBlocks: 0,
slug: 'foundryusa',
avgMatchRate: 99.11,
avgFeeDelta: '-0.02456210',
poolUniqueId: 111
}
- clone the repository
- install the required packages with
npm install - run the first script with
node blockStats.js - run the second script with
node findSeven.js <csv file>
You can edit the scripts to scrape more or less data, and to look for different patterns. It's all commented, thanks to CursorAI. I put a 2 second delay between each API call, and it seems this doesn't hit the mempool.space API limit for 800 calls, so that's nice.