Caliptra
An open-source silicon root-of-trust block letting chips verify their own firmware, backed by OCP and hyperscalers.
Current numbers
Caliptra 2.1: ML-DSA + ML-KEMCaliptra 2.1 reference IP supports ML-DSA and ML-KEM; verify selected options in the shipped device
4 contributorsCaliptra open silicon RoT co-developed by Microsoft, Google, AMD, NVIDIA; committed in their first-party/server silicon