garlicoin.orgBlock Lotto
A free daily draw, and you can enter any time. Each day's draw closes at 6 pm US Central time; the blockchain picks the winner when the draw block arrives, usually within the hour. Entries after 6 pm go into the next day's draw.
Today's prize
– GRLC
Set by the chain when entries opened.
- Entries so far
- –
- Entries close in
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- Winner announced
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Free, one entry per person a day. The prize comes from the faucet. Need an address? Get a wallet.
Cheering section
Say something to everyone in the draw for today. It costs 1 GRLC and goes to the faucet. It doesn't change who wins.
Drawing now
Entries are closed for
Past draws
| Day | Draw block | Entries | Winner | Prize |
|---|
No draws yet. Be in the first one!
How the winner is picked
- Each day's draw closes at 6 pm US Central time, and the next day's opens right away, so you can always enter. At closing, a block about half an hour in the future is named as the draw block, so nobody, not even us, can know what's in it ahead of time.
- When that block arrives, its hash (a long, random-looking number every block has) picks one entry. Every entry has the same chance.
- The prize, 1 to 10 GRLC, is picked by the chain the same way when entries open, and averages 5 GRLC.
- Everything is published, and this page re-checks every result in your browser.
The exact rules
- Entries close at 6 pm US Central time every day. The draw block is then announced: the block 45 past the chain tip at that moment, about half an hour away. Nobody can know its hash in advance, not even us.
- Once the draw block has six confirmations, its hash is read as one huge number. The entries are sorted alphabetically, and the winner is found with hash mod entries. That gives a number from 0 up to one less than the number of entries, so 0 means the first entry, 1 the second, and so on.
- The prize is announced in advance. When the previous day's entries close, the hash of the newest block at that moment picks one of 20 slots: 1, 1, 2, 2, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 7, 7, 8, 8, 9 or 10 GRLC. That averages 5 GRLC, with a 10 about one day in twenty. On a day with no entries, nothing is paid.
- Everything used in a draw, including the full list of entries, is published in lotto.json, so anyone can check a result. This page redoes the math in your browser and shows a tick when it agrees.