Source: Publicly-traded US bitcoin miner Core Scientific is filing for Chapter 11 bankruptcy on Wednesday, as its valuation fell from $4.3B in July 2021 to $78M (MacKenzie Sigalos/CNBC)

Eliza Gkritsi / CoinDesk:
Poolin, one of the world’s biggest bitcoin mining pools, suspends withdrawals from its wallet service, citing liquidity issues  —  Yesterday, the mining pool admitted to liquidity issues.  —  PoolinWallet, the wallet service of one of the world’s biggest bitcoin mining pools …

Jamie Crawley / CoinDesk:
Study: in January 2022, 62.4% of bitcoin mining electricity came from fossil fuels, contradicting the Bitcoin Mining Council’s estimate that ~59% is sustainable  —  The CCAF uses publicly available data to run a theoretical model to estimate the environmental footprint of bitcoin mining.

David Pan / Bloomberg:
Ethermine, the largest Ethereum mining firm, will shut down its servers for miners after Ethereum’s Merge, switching its mining pool to withdraw-only mode  —  Ethermine, the largest Ethereum mining services provider by computing power, will shut down its servers for miners after the blockchain completes its historic technical upgrade.

Bloomberg:
Internal doc: Alameda and FTX’s largest venture bet was Bitcoin mining company Genesis Digital, investing a total of $1.15B between August 2021 and April 2022  —  One of the bigger questions surrounding the collapse of Sam Bankman-Fried’s crypto empire is what venture investments …

Sam Reynolds / CoinDesk:
Binance’s mining service Binance Pool launches a $500M fund to provide 18-to-24-month loans for private and publicly listed Bitcoin miners  —  The entity is the latest to join the growing ranks of alternative lenders looking to provide capital to the distressed mining industry.

MacKenzie Sigalos / CNBC:
Report: FTX legal and finance teams learned that SBF implemented a “backdoor” in FTX’s bookkeeping system to alter financial records without alerting others  —  – Reuters reports that at least $1 billion worth of customer funds have vanished from the failed crypto exchange.