I'm not really interested, so I didn't read the much of the thread, but I did read the last comment. If you're looking for a random number, just use the hash of block x. Blocks take roughly ten minutes to generate, so you can pretty well estimate about how long it'll take to get to block x. Just be sure to specify whether you count the genesis block as block 0 or 1 since it's changing and whether you'll be looking at the hash that's available while block x is being hashed or the hash of block x. And if the payout is large, you should wait for at least about a day after the payout to ensure that the hash is pretty well confirmed.

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