Downloading the whole Bitcoin block chain takes a while.
@whitequark @jm make double spending nonce reuse with any *DSA, which Bitcoin already uses. It's catastrophic (see e.g. PS3 master key)
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@whitequark@jm i.e. if double spending is detected, identify the culprit in the DAG and blacklist his whole spending history -
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@whitequark@jm encouragement to get your money from a reputable source and not to launder your money! ;) -
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@whitequark@jm more or less apply the machine learning techniques already used for credit card fraud to an altcoin -
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@whitequark@jm declining fraud rates in the payments industry would disagree with you :P - 1 more reply
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