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True random numbers

HotBits offers true random numbers via the web. The numbers are generated based on the measurement of the time between radioactive decay events of a 85Kr-sample (Krypton-85 exhibits beta decay to Rubidium-85). The random bytes are available in various formats and they are genuinely random, due to the inherent quantum mechanical uncertainty of the radioactive decay.

[update May 19th, 2006: Spelling corrected]

2 Responses to “True random numbers”

  1. Torsten
    May 19th, 2006 10:41
    1

    Since your always so picky with Orthogiraffy:
    Shouldn’t it be “quantum mechanical uncertainty”?

  2. Arne
    May 19th, 2006 13:00
    2

    Of course it should be, thanks for the notice. Don’t know where that “ly” came from!