Reproduced measurement
6 × 2
scenarios, each run twice, with an identical fingerprint
Humanoid Sim — the same fall, three gravities, checked twice
Two Unitree robots on Earth, the Moon, and Mars. The physics is not computed in the page: it runs separately, with MuJoCo on CPU, and each scenario is executed twice from the same seed. Across all six, the SHA-256 fingerprint of the trajectory is identical between runs — that is determinism, demonstrated. Relative energy drift in free fall remains below 0.22% in the worst case.
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