Bitcoin Seed Generator Entropy32 Plus Uses Radioactive Decay for True Randomness

TLDR: Entropy32 Plus generates Bitcoin seed phrases using radioactive decay as its physical entropy source. A Geiger counter paired with an LM393 comparator captures decay timing for seed generation. SHA-256 conditioning whitens the raw radioactive entropy before mapping it to the BIP39 wordlist. The developer says entropy quality remains unvalidated under the NIST SP 800-90B [...]

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