'Hidden signature' of NVIDIA chips found on 6 Chinese AI models, claims researcher

A researcher claimed that six Chinese AI models from leading labs, including DeepSeek and Moonshot, show a "hidden signature" of NVIDIA's most advanced Blackwell chips, restricted by the US. However, he clarified that this doesn't confirm whether the chips were smuggled into China. The claim comes amid reports of NVIDIA ex-CEO Jensen Huang's alleged affair with a Chinese spy.