Bitcoin’s mining difficulty was lowered to 31.36T at block height 756,000, the first time the difficulty has been lowered in nearly two months. At present, the average hashrate of the entire network is 224.41 EH/s.

https://explorer.btc.com/btc/insights-difficulty

• https://www.bitrawr.com/difficulty-estimator
• https://www.coinwarz.com/mining/bitcoin/difficulty-chart
• https://bitcoinexplorer.org/difficulty-history
• https://insights.braiins.com/en/cost-to-mine/

• https://www.coinwarz.com/mining/bitcoin/hashrate-chart
• https://bitinfocharts.com/comparison/hashrate-btc-ema14.html#3y

• https://data.hashrateindex.com/rig-index-data

• https://fork.lol/pow/retarget

• https://timechainstats.com
• http://vaccaro.network:3838/bitcoin/#shiny-tab-bitcoin_pools_dashboard
• https://mempool.space/mining
• https://mempool.space/graphs/mining/pools-dominance
• https://insights.braiins.com