The Bitcoin network abruptly lost nearly 8% of its computational security in a single 24-hour window between December 14 and 15, erasing approximately 100 exahashes per second (EH/s) from the global ledger. The contraction coincides with credible reports of a renewed enforcement action against illicit mining operations in China’s Xinjiang region.
Bitcoin (BTC) reacted sluggishly to the security shock, slipping 1.9% to trade near $89,800, though the sudden disappearance of industrial-scale demand suggests immediate sell-side pressure from miners forced to liquidate assets.
The Xinjiang Disconnect
Data from HashrateIndex confirms the network’s total hashrate fell from ~1,124 EH/s to ~1,078 EH/s. The magnitude of the drop, too large for a standard variance or maintenance outage, points to a coordinated infrastructure shutdown.
Jack Kong, founder of Nasdaq-listed Nano Labs, identified the source as a regulatory enforcement action in Xinjiang. Writing on X (formerly Twitter), Kong noted the mathematics of the decline implies a massive hardware cull.
"Calculated at an average of 250T per machine, at least 400,000 machines were shut down."
Xinjiang has historically served as the nerve center for China’s mining sector due to its abundant thermal power. Despite Beijing’s blanket ban on cryptocurrency mining in 2021, the sector staged a "quiet resurgence," with China reclaiming an estimated 14% of the global hashrate by late 2024. This enforcement action appears to be the state’s first major counter-strike against that shadow recovery.
Energy Conflict: AI vs. PoW
The timing aligns with China’s aggressive pivot toward Artificial Intelligence infrastructure. Local sources suggest provincial authorities are under pressure to reclaim grid capacity for state-sanctioned data centers, leaving gray-market crypto miners vulnerable to immediate power cuts. Unlike the 2021 exodus, where miners had months to relocate, this shutdown appears instantaneous, leaving operators with stranded hardware and zero revenue.
