Wolfie Zhao

A member of the CoinDesk editorial team since June 2017, Wolfie now focuses on writing business stories related to blockchain and cryptocurrency. Twitter: <a href="https://twitter.com/wolfiezhao">@wolfiezhao</a>. Email: wolfie@coindesk.com. Telegram: wolfiezhao

Wolfie Zhao

Latest from Wolfie Zhao


Markets

dForce Hacker Returns Almost All of Stolen $25M in Crypto

The hacker had drained $25 million in cryptocurrency from decentralized finance protocol dForce over the weekend.

Refund transactions from the Lendf.Me hacker. Data via Etherscan.io

Markets

Bitcoin Mining Hardware War Is Heating Up Ahead of the Halving

MicroBT is rolling out three top-of-the-line bitcoin miners hoping to eat further into Bitmain's market dominance at a key time for the industry.

MicroBT COO Chen Jianbing. (Credit: MicroBT)

Markets

Chinese State-Owned Bank Offers Test Interface for PBoC Central Bank Digital Currency

The Agricultural Bank of China has rolled out an internal test interface for the nation's central bank digital currency, allowing whitelisted users to register and trialing certain functions.

Chinese Flags

Finance

Bitmain Partially Refunds Bitcoin Miner Buyers After Price Cuts

The Beijing-based firm is sending out cash coupons to customers who pre-ordered its latest bitcoin miners ahead of recent price markdowns.

Bitcoin miner image (CoinDesk archive)

Finance

New York Power Plant Sells 30% of Its Bitcoin Mining Hashrate to Institutional Buyers

Greenidge Generation, an upstate New York power plant that's using proprietary facility to mine bitcoin, has sold up to 30 percent of its computing power to institutional buyers.

Greenidge mining facility

Markets

Bitcoin SV's First Halving Crimps Profits for BSV Miners

Bitcoin SV, the network that split off from the Bitcoin Cash blockchain in late 2018, has cut its miners’ block reward in half for the first time.

GONE TO SEED? The halving of bitcoin cash block rewards made mining that coin with older rigs unprofitable. The same may happen for bitcoin SV. (Credit: Rawpixel)

Finance

Bitcoin Miner Maker Canaan Lost $148M in 2019

The Chinese bitcoin miner manufacturer has disclosed it made a net loss of $148.6 million for 2019 on a revenue of $204.3 million.

Canaan co-Chairman Jianping Kong is one of three company directors dropped from the miner maker's business registry. (PoolIn)

Tech

Bitcoin Cash Undergoes 'Halving' Event, Casting Shadow on Miner Profitability

Bitcoin Cash, the blockchain network that forked off Bitcoin in 2017, has just reduced its mining rewards by half, causing lots of miners to have nearly zero gross margin.

(maxuser/Shutterstock)

Markets

Manufacturers Mark Down Bitcoin Miners as Price Drop, Halving Change Calculus

Last month’s bitcoin price crash has prompted manufacturers to sell their mining devices at discounts as steep as 20 percent ahead of the May halving.

Bitcoin miner image (CoinDesk archive)

Markets

Bitcoin Mining Difficulty Posts Second-Biggest Percentage Drop in Its History

Competition among Bitcoin miners has eased as the recent price drop thinned the herd, fresh data shows.

Source: Coin Metrics; difficulty recorded at last block mined at the beginning of each 2-wk period; data as of March 26, 2020