A few years back, I operated a Lottery pool among my fellow employees. I ALWAYS delivered to them a copy of the pooled tickets before the drawing.
I participated in dozens of "pooled" lotteries in my day; Always the purchaser would distribute copies of all the tickets to each individual member before the drawing.
That's not rocket science.Only a truly stupid individual, or one with larceny in their heart would fail to see the propriety and ethical necessity for that.