TRNG based on quantum vacuum:

From https://news.ycombinator.com/item?id=44371059 :

> "100-Gbit/s Integrated Quantum Random Number Generator Based on Vacuum Fluctuations" https://link.aps.org/doi/10.1103/PRXQuantum.4.010330

From .. https://news.ycombinator.com/item?id=43497414 :

>>> google/paranoid_crypto.lib.randomness_tests

There are NIST randomness tests, for example;

https://github.com/google/paranoid_crypto/tree/main/paranoid...

https://github.com/google/paranoid_crypto/blob/main/examples...

"Traceable random numbers from a non-local quantum advantage" (2025) https://www.nature.com/articles/s41586-025-09054-3 :

> Here we demonstrate a fully traceable random number generation protocol based on device-independent techniques. Our protocol extracts randomness from unpredictable non-local quantum correlations, and uses distributed intertwined hash chains to cryptographically trace and verify the extraction process. This protocol forms the basis for a public traceable and certifiable quantum randomness beacon that we have launched.

FWIU also there are already QRNG or QTRNG based upon photonic speckle pattern interference; LEDs and a photodiode and an FPGA or an RP2040 or better.