Fairness without gimmicks. Transparency without exaggeration. At Jambala, trust comes from letting you verify the result yourself — not from borrowed credibility. Here is exactly how our draws work, in plain English.
How are winners chosen?
Every winning ticket is selected using a publicly verifiable random source: a Bitcoin block hash combined with SHA-256 hashing. The Bitcoin network produces a fresh, unpredictable block hash roughly every ten minutes — nobody (including us, and including the miners themselves) can choose what the next hash will be. We use the first Bitcoin block confirmed after the announced draw time as the random seed.
For each draw we publish:
- The announced draw time
- The Bitcoin block height and block hash used as the seed
- The exact algorithm input that was hashed
- The resulting SHA-256 hash
- The winning ticket number
You can re-run the same hash on any computer and confirm the winning ticket is the only possible result. See How we draw for every past draw with step-by-step verification.
Two formats of draw
Depending on the competition, the draw runs either:
- Live — during a publicly visible draw on our livestream, with our team announcing the winning ticket number derived from the published algorithm.
- Automated — using a script that runs at the scheduled draw time and immediately publishes the proof record to the public verification page.
In both cases the inputs and outputs are recorded on our public verification page, and the result is independently reproducible by anyone.
Prizes are awarded in accordance with the laws of chance.
Are your draws certified or casino-grade?
No — and we are intentionally clear about that. Our competitions are prize competitions, not regulated gambling products, and we do not use gambling-style compliance language to imply otherwise. Instead of borrowing a certification, we publish the full proof of every draw so you don’t have to take our word for anything.
Why Bitcoin and SHA-256?
Two reasons:
- Public and unpredictable. Block hashes are produced by a global decentralised network. Nobody can predict them in advance, and nobody — including Jambala — can change them after the fact.
- Independently verifiable. The block hash is recorded permanently on the Bitcoin blockchain and is visible on dozens of independent block explorers (we link to mempool.space and blockstream.info on every draw record). SHA-256 is a standard hashing function available in every operating system and programming language. Anyone, anywhere, can re-run the calculation.
This is stronger than any “certified RNG” we could buy. A certified RNG asks you to trust the certificate; our method asks you to verify the maths yourself.
How can I verify a draw?
Visit /pages/how-we-draw. Each draw record shows the algorithm input, the SHA-256 of that input, and a direct link to the relevant Bitcoin block on a public explorer. Step-by-step verification instructions are included with every record.
Where can I find the results?
All settled draws — with winning ticket numbers, full proof records, and verification instructions — are published on the How we draw page. We also email the winning entrant directly and post the result on each product page after settlement.
Last updated 21 May 2026.
Have a question? We're here to help.
A few links that might point you in the right direction:
What if...
...I win but can’t be reached?
If we can’t contact you using the details you provided, we follow the claim process set out in our Terms and Conditions. This includes multiple contact attempts within a defined time window. If there’s still no response, the prize is handled exactly as stated in the T&Cs.
...the competition doesn’t sell out?
The draw still happens. Every competition runs at the published date and time, regardless of how many tickets are sold.
...I’d rather take cash than the prize?
Where a cash alternative is available, it’s clearly shown on the competition page. If you choose it, payment is made by bank transfer to an account in your own name within the stated timeframe.
...I made a mistake in my entry details?
Please contact us as soon as possible. We can update contact information before the draw, but ticket ownership and entries cannot be changed once a competition has closed.
...I change my mind after buying tickets?
All ticket purchases are final. If a competition is cancelled by us without a prize being awarded, refunds or alternatives will be provided as set out in the T&Cs.
...I think something isn’t fair?
Transparency matters to us. Ticket limits, allocations, and draw processes are visible and documented. If you still have concerns, you can review our Fair Draws page or contact us directly and we’ll walk you through the process.