My understanding is that ownership of ASICMINER shares (direct ownership, that is; not passthroughs) is recorded somehow in the blockchain, itself.
How does that work, exactly? How can I confirm that a person claiming to have 300 shares available for sale actually owns 300 (or more) shares? I also see people saying they "received their satoshis transaction" (in addition to their dividends payment). I suspect that is somehow related, but that can hopefully be clarified in an answer as well.