The amount of capacity and the type of compute it was trained on is “abundantly available in China,” said the Nvidia CEO.

It may be appropriate to attempt to mitigate the extent of the freeze as much as possible, even at the cost of greater complexity, said BitMEX.

It is the second long-term social-engineering attack this month, after the $280 million exploit of the Drift Protocol.

The authors described it as a “private incentive to upgrade” because lost or frozen coins will make everyone else’s coins worth slightly more.

Bitcoin falling to the $50,000 level is being seen as the “last significant accumulation zone” before any sustained recovery, says LVRG Research director Nick Ruck.

A broad hope for a US deal with Iran to end weeks of conflict has spurred investor confidence in riskier assets.