Basecasino.io

Prove this draw

The cryptographic inputs published before and after this draw deterministically produce the winning numbers. Click below to run the full verification in your own browser - no server round-trip, no trust required, just the maths.

Draw Information

Draw ID:
#503576976

Game:
Rapid Riches

Draw Time:
2026-07-27 19:51:20 UTC

Result Published:
2026-07-27 20:06:18 UTC

Status: Verified & Complete

Winning Numbers

Main Numbers

Bonus Numbers

Cryptographic Proof

This draw uses provably fair technology to ensure complete transparency and fairness. All random number generation is cryptographically verifiable.

Verification Steps:

Server seed committed before any entries
Client seeds collected from all entries
Combined seed used for random generation
Results can be independently verified

Proof Status:

Run the full verification above to confirm the server seed, combined seed and winning numbers all line up. The buttons inside the technical details below also let you re-check each piece individually.

Technical Information:

Draw ID: 503576976
Timestamp: 1785196280
Server Seed Commitment: b4b3bcf0fdf05c722005fad21bce9d07a99e66f87366c833a5dc7f907e583544
Commitment Nonce: 5d1ff98a902606d16091d09a24c6baf2314e2478e630c0cb943250838f0d182d
Merkle Root: de780e92f16a1d680ec0357b291e6d1b6146f1daa1686132e298c7b9a9bad894
Server Seed (revealed): 653871f00f9919170c70912230bb288d2578051c5b164d2105fda573963b2027
Combined Seed: 25282dffd5f88b170305899e8255b6ad73a062fc24de0492b9f6d2a11ddd1f8b

Verification Instructions

Copy the Server Seed (revealed after draw), Draw ID, Nonce, and other commitment data from below.
Verify the Server Seed Commitment by computing:
SHA256("server_seed:" + draw_id + "|" + server_seed + "|" + nonce + "|" + entropy_sources + "|" + version + "|" + commitment_type)
Confirm it equals the Server Seed Commitment hash shown below.
Compute combined_seed = SHA256(server_seed + merkle_root).
Generate winning numbers using this exact algorithm:
seed_integer = combined_seed.to_i(16) # Convert hex to integer rng = Random.new(seed_integer) # Ruby's Mersenne Twister PRNG main_numbers = (1..MAIN_COUNT).to_a.sample(PICK_COUNT, random: rng).sort bonus_number = (1..BONUS_COUNT).to_a.sample(1, random: rng).first Game config for this draw: MAIN_COUNT=30, PICK_COUNT=4, BONUS_COUNT=9
Confirm the recomputed numbers exactly match the published result numbers.
To verify your ticket inclusion in the Merkle root: use the Inclusion Proofs section below, copy the Verifier JSON, and verify with the on-page script or a third-party tool.

Server Seed (revealed after draw)

This is the pre-image of the commitment. It was kept secret before the draw.

Server Seed Commitment (SHA256)

Commitment Nonce

Draw ID

Version

Commitment Type

Entropy Sources (sorted keys)

Merkle Root (Committed Entries)

Combined Seed (SHA256 of server_seed + merkle_root)

In-Browser Commitment Verifier

Verify the server seed commitment matches the revealed server seed. No data is sent anywhere; verification runs locally in your browser.

External Verification

Note: This system uses custom hashing with prefixes (leaf: and internal:). Standard Merkle tree tools will not work directly. You must implement the specific hashing format shown in the proof data above.

Standalone Ruby Verification Script

Copy this script and run it on jdoodle.com/execute-ruby-online (Ruby) to independently verify this draw.

require 'digest'

# ============================================
# BASECASINO.IO PROVABLY FAIR VERIFICATION SCRIPT
# Generated for Draw #503576976
# Run on: https://www.jdoodle.com/execute-ruby-online
# ============================================

# === DRAW DATA ===
DRAW_ID = '503576976'
SERVER_SEED = '653871f00f9919170c70912230bb288d2578051c5b164d2105fda573963b2027'
NONCE = '5d1ff98a902606d16091d09a24c6baf2314e2478e630c0cb943250838f0d182d'
ENTROPY_SOURCES = 'memory_entropy,system_entropy,timing_entropy'
MERKLE_ROOT = 'de780e92f16a1d680ec0357b291e6d1b6146f1daa1686132e298c7b9a9bad894'
EXPECTED_COMMITMENT = 'b4b3bcf0fdf05c722005fad21bce9d07a99e66f87366c833a5dc7f907e583544'
EXPECTED_COMBINED_SEED = '25282dffd5f88b170305899e8255b6ad73a062fc24de0492b9f6d2a11ddd1f8b'

# === GAME CONFIGURATION (Rapid Riches) ===
MAIN_NUMBER_COUNT = 30
MAIN_SELECTION_COUNT = 4
SECONDARY_NUMBER_COUNT = 9
SECONDARY_SELECTION_COUNT = 1

# === PUBLISHED RESULTS ===
EXPECTED_MAIN_NUMBERS = [7, 9, 21, 25]
EXPECTED_BONUS_NUMBER = 8

# Track all verification results
$verification_results = {}

puts "=" * 60
puts "BASECASINO.IO PROVABLY FAIR VERIFICATION"
puts "Draw #503576976 - Rapid Riches"
puts "Draw Time: 2026-07-27 19:51:20 UTC"
puts "=" * 60
puts

# STEP 1: Verify Server Seed Commitment
puts "STEP 1: Verify Server Seed Commitment"
puts "-" * 40

data_string = [
  DRAW_ID,
  SERVER_SEED,
  NONCE,
  ENTROPY_SOURCES,
  '1.0',
  'server_seed'
].join('|')

computed_commitment = Digest::SHA256.hexdigest("server_seed:#{data_string}")

puts "Computed: #{computed_commitment}"
puts "Expected: #{EXPECTED_COMMITMENT}"
$verification_results["Server Seed Commitment"] = computed_commitment == EXPECTED_COMMITMENT
puts $verification_results["Server Seed Commitment"] ? "✅ MATCH!" : "❌ MISMATCH!"
puts

# STEP 2: Verify Combined Seed
puts "STEP 2: Verify Combined Seed"
puts "-" * 40

computed_combined_seed = Digest::SHA256.hexdigest(SERVER_SEED + MERKLE_ROOT)

puts "Computed: #{computed_combined_seed}"
puts "Expected: #{EXPECTED_COMBINED_SEED}"
$verification_results["Combined Seed"] = computed_combined_seed == EXPECTED_COMBINED_SEED
puts $verification_results["Combined Seed"] ? "✅ MATCH!" : "❌ MISMATCH!"
puts

# STEP 3: Reproduce Winning Numbers
puts "STEP 3: Reproduce Winning Number Generation"
puts "-" * 40

seed_integer = computed_combined_seed.to_i(16)
rng = Random.new(seed_integer)

main_range = (1..MAIN_NUMBER_COUNT).to_a
winning_numbers = main_range.sample(MAIN_SELECTION_COUNT, random: rng).sort

secondary_range = (1..SECONDARY_NUMBER_COUNT).to_a
bonus_number = secondary_range.sample(SECONDARY_SELECTION_COUNT, random: rng).first

puts "Main numbers generated: #{winning_numbers.inspect}"
puts "Expected main numbers:  #{EXPECTED_MAIN_NUMBERS.inspect}"
$verification_results["Main Numbers"] = winning_numbers == EXPECTED_MAIN_NUMBERS
puts $verification_results["Main Numbers"] ? "✅ MATCH!" : "❌ MISMATCH!"
puts

puts "Bonus number generated: #{bonus_number}"
puts "Expected bonus number:  #{EXPECTED_BONUS_NUMBER}"
$verification_results["Bonus Number"] = bonus_number == EXPECTED_BONUS_NUMBER
puts $verification_results["Bonus Number"] ? "✅ MATCH!" : "❌ MISMATCH!"
puts

# ============================================
# FINAL SUMMARY
# ============================================
puts "=" * 60
puts "VERIFICATION SUMMARY"
puts "=" * 60

$verification_results.each do |check, passed|
  status = passed ? "✅ PASS" : "❌ FAIL"
  puts "#{status} - #{check}"
end

puts
if $verification_results.values.all?
  puts "🎉 ALL VERIFICATIONS PASSED"
  puts "This draw is PROVABLY FAIR"
else
  puts "⚠️  SOME VERIFICATIONS FAILED"
  puts "Review the mismatched values above"
end

All Proofs All Results Play Game

Draw Proof Details - Draw #503576976