One night.
Seven winds.
Mine a spark with your phone. Light a candle with it for 0.002 ETH; every 111 candles the price rises a little. Seven times in the night the wind blows out some candles, and what they held stays with the ones still burning.
The wind does not know who you are.
Lit before the first wind
Lit before the last wind
If the night goes like the model, a candle lit for 0.002 ETH that sees the morning holds about five times that, eight in a strong night. An early candle pays least; a late one faces fewer winds. The wind decides the rest.
A candle now, and how many more at this price
Into the hall, shared by the ones still burning85%
To the chandler15%
Leave at any hour: to you, and what stays90% and 10%
Trades: to the hall, then the keepers, and to the chandler
3% and 2%