confirmed guesses so far
You don’t need the exact second: the closest 21 win.
Prizes are bought as Storm seats sell. No seats, no prizes.
Every 210,000 blocks, about every four years, the number of new bitcoin paid to miners for each block is cut in half. It is written into Bitcoin’s code and nobody can change it.
At block 1,050,000 the reward falls from 3.125 to 1.5625 BTC. It is the fifth halving: the others were in 2012, 2016, 2020 and 2024.
Bitcoin will only ever have 21 million coins. Each halving slows the flow of new ones, so Bitcoin gets scarcer on a fixed timetable nobody controls.
Miners earn less per block overnight, and the whole Bitcoin world watches the moment it happens.
There is no date in the code, only a block number. Blocks arrive about every ten minutes, so the date is an estimate that sharpens as it gets closer.
The countdown at the top reads the live block and the network’s real recent block speed, and updates itself.
Guess the exact second block 1,050,000 is mined, between 15 March 2028 00:00:00 and 31 May 2028 23:59:59 UTC. One guess each, locked the moment you make it.
The answer is the moment block 1,050,000 is first seen on the Bitcoin network: the middle of the times five named independent observers first receive it, read once six more blocks have followed. The 21 closest guesses win; a tie goes to the guess confirmed first.
The 21 closest guesses each win up to 1 BTC. Free: no purchase, no seat needed.
The Bitcoin is bought by The Bitcoin Storm from its growth surplus as seats sell, up to 21 BTC. If fewer seats sell, the 21 winners share what was bought equally. To collect, a winner completes their details on the Storm and the usual identity check. If the Storm does not launch, there are no prizes.
When the Storm opens, a confirmed guess also holds a founding place for you for 14 days.
One guess per person. Anyone found with more than one loses them all. Guessing closes at block 1,049,856, about a day before the halving.
Each day a sealed fingerprint of every confirmed guess is published (see them), and at launch every guess moves onto the Storm’s on-chain system unchanged, so nobody, including us, can alter one. Prizes are paid only where the Storm is open.
Prizes depend on Storm seats sold. Full rules →
Any second from 15 Mar to 31 May 2028, UTC. Closest wins; no one needs to be exact.
Rough odds
1 in 4,762
with 100,000 players. Free, one guess.
“×” is how many times harder the lottery’s top prize is. You don’t need the exact second: closest wins, and ties go to the guess confirmed first. Simple maths, not a promise.