 | Bitrawr difficulty estimator-
https://www.bitrawr.com/difficulty-estimator Bitcoin difficulty adjustment estimator |
 | Braiins Mining Insights-
https://insights.braiins.com/ Bitcoin mining stats. |
 | Hashrate distribution-
https://blockchain.info/pools Estimation of hashrate distribution amongst the largest mining pools. |
 | Hashrate Index research-
https://hashrateindex.com/research Curated academic papers, industry reports, equity research and research pieces. |
 | MiningPoolStats-
https://miningpoolstats.stream/bitcoin Ranked mining pool statistics. |
All links provided in good faith.
Don’t trust, verify.