- PoW and mining explained by Andrej P Skraba
- https://andersbrownworth.com/blockchain/blockchain
- https://www.blockchain.com/charts#mining
- https://ccaf.io/cbeci/index
- https://coinshares.com/research/bitcoin-mining-network-2022
- https://github.com/bitcoinbook/bitcoinbook
- MICA and PoW ban by Marina Markezic
- https://www.coindesk.com/policy/2022/03/25/eus-mica-bill-moves-forward-without-bitcoin-limiting-provision/
- https://cointelegraph.com/news/european-crypto-regulatory-framework-goes-to-three-way-consideration-without-pow-ban