My question is 2 part:
1. How does somebody know that a set of bitcoins is lost? Merely declaring that I've lost my private key and hence bitcoin makes the coins lost?
2. What impact(and why?) would be on the price of bitcoin if I lose a huge amount of bitcoin today? Say 1 billion?

  1. Only the market knows it
  2. Market will tell you if you lost them

If you never traded bitcoins(just hold them), market can not know that you lost them.

  • Market feels that there is lack of bitcoins. For example when there is a presure to buy with the big number of lost bitcoins price will go higher. Dec 9 '15 at 10:42
  • @XaweryWiśniowiecki: Still, market cannot distinguish coins that are in cold storage from coins that have been lost.
    – Murch
    Dec 9 '15 at 13:07
  • But smaller amount of bitcoins on the market will make the price higher in bull-time and slower price falling in bear-time Dec 9 '15 at 14:19

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