Quote from: zasad@ on Today at 10:48:11 AM

I could be accused of mistrust of the forum participants.

You shouldn't trust all users Wink

Quote

If you have an offer and are ready to pick a winner, post it, I will add these terms to the rules

How about this: After locking the topic on December 16, you post a numbered list (start with number 0, not 1) of qualifying candidates and a winning Bitcoin block 12 blocks in the future. Don't edit that post anymore.
When that block is mined, and let's take block 659343 as an example, you take the hash:
00000000000000000009a4f6f21e40f4c24eb7d0d17be6f35166c894ed93cccf
From this, you take all numbers: 00000000000000000009462140424701763516689493, then for convenience the last 9 digits only: 516689493
Say the list is:

Code:

0. userA
1. userB
2. userC
....
69. userBQ

To get the winner, you divide 516689493 by 70 (one more than 69) and take the remainder: 33. User #33 on the list wins.