Hardware that samples a physical noise source; it still needs health tests, conditioning and proof that security-critical code actually calls it.
Hardware true random-number generator is best understood as part of a system rather than as an isolated definition. Its related coordinates show the mechanisms, incentives and historical records that give the term practical meaning.
Hardware true random-number generator should be evaluated against a concrete threat model: what is protected, from whom, for how long and at what operational cost. A design may remove one dependency while introducing another, so custody, privacy and verification must be judged as a complete system.
Understanding Hardware true random-number generator helps distinguish a verifiable Bitcoin mechanism or historical record from slogans, products and market narratives.
For the clearest picture, read this entry together with Random-number generator, Cryptographic entropy, Entropy mixing, Hardware wallet. The reverse links also lead from Random-number generator, Cryptographically secure PRNG, Entropy mixing.
Linked to related atlas coordinates
Grounded in source data
Explains function and trade-offs
Part of the open Bitcoin knowledge graph