12 bits about 1 in 4,09616 bits about 1 in 65,53620 bits about 1 in 1,048,57626 bits rarer than UK Lotto jackpot odds
Next clean hit8 bits
Session peak0 bits
Hot pulls0
Latest spin
0 zero bits1 in 1
Result
The machine is idle.
Points
0 GSNo tier yet
What just happened?Spin once to roll one hash. The page will count its starting zeroes and show the odds.
Auto spin rolls one visible hash every 1.6 seconds.
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verified scores
Leaderboard
The leaderboard is the point.Top place goes to the rarest hash. The odds are shown in plain English, and proof links let the server check the result again.
Find a rare enough hash to post it.
Rank
Name
Score
Points
Odds
Spins tried
Hash
Proof
No public scores yet.
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Copy the proof.
page link + maths
When you hit something rare, copy the page link, the maths explainer, or a simple proof summary.
12 bitsabout 1 in 4,096
16 bitsabout 1 in 65,536
20 bitsabout 1 in 1,048,576
26 bitsrarer than UK Lotto jackpot odds
UK Lotto jackpot odds are 1 in 45,057,474. HashJackpot uses that only as a comparison.
local score
Local score
0 GSNo score yet
Find a new personal best to start earning local score.
Score loads after your first spin.
Local score is saved in this browser and gives the page a bit of progression.
stamps
Milestones
0/0
Small local milestones for regular play and rare hits. They stay in this browser.
cabinet
Local progress
local unlocks
These are cosmetic only. They do not change the odds or give an advantage.
paytable
What counts as rare?
Each extra zero bit halves the chance again. That is why the numbers climb so fast.
recent pulls
Spin tape
plain English
What is HashJackpot?
It is a rare-hash leaderboard. One spin makes one SHA-256 hash. If it starts with zeroes, it scores. More zeroes means longer odds and a better rank.
The Lotto comparison uses UK Lotto jackpot odds: 1 in 45,057,474. HashJackpot is not gambling. There is no money, crypto or prize pot.