✦ The lucky draw · one or one hundred
Random number generator
Generate one or many safe integers with cryptographic rejection sampling, exclusions, and optional sampling without replacement. Every output records its requested range, random bytes, result, timestamp, and linked SHA-256 proof so modulo bias and later edits can be checked.
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✦ Proof booth
Fairness & entropy audit
Each proof commits the entries, weights, random bytes, result, timestamp, nonce, and previous proof digest. Recomputing SHA-256 detects later changes; it does not prove that a dishonest host committed the inputs before drawing.
- Normalized entropy
- 0.00%
- Entropy
- 0.000 bits
- Chi-square
- 0.000
- p-value
- 1.0000
- Verified draws
- 0
Observed result frequency
3 degrees of freedomThe sample is too small for a reliable chi-square interpretation (expected count below 5).
Option one
0
Option two
0
Option three
0
Option four
0
Recent proof hashes
Your first result will appear here with its SHA-256 verification digest.