# A New Device Generates Bitcoin Seed Phrases From Radioactive Decay, With No Published Validation

Entropy32 Plus produces offline keys from a physical randomness source, but its entropy output has not been independently tested or audited.

- Published: 2026-09-14T05:49:22.021Z
- Canonical: https://polylog.news/crypto/2026-09-14/a-new-device-generates-bitcoin-seed-phrases-from-radioactive
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [crypto.news](https://crypto.news/bitcoin-wallet-keys-emerge-from-radioactive-decay/), [arXiv cs.CR](https://arxiv.org/abs/2609.11991)

A hardware product called Entropy32 Plus turns radioactive decay into offline Bitcoin seed phrases, using the timing of decay events as its source of randomness. The physics is sound in principle: decay intervals are genuinely unpredictable…

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