cryptocurrency

• September 2020 - update Sep 10
• Ethereum 2.0 - Medalla Testnet Sep 10
• April 2020 / May 2020 - overview May 24
• Ethereum 2.0 validator - Topaz Testnet May 23
• Python blockchain Feb 1

• September 2019 - overview Oct 1
• June 2019 - overview Jul 1