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Draw Details
Revealed
Drand Quicknet
API Turbo-Draw

Round ID: d0a171cc-c061-47c5-b299-93a481c09848

57,289 Sold · 1,000,000 Max Tickets
Winning Ticket
1 winner
Draw #15
#311573
Verified by Drand distributed randomness beacon
Derived Numbers
15 numbers
1 winner
Attempt
Ticket
Outcome
Verify
0 350141
Unsold
1 999166
Unsold
2 892727
Unsold
3 676964
Unsold
4 215798
Unsold
5 370312
Unsold
6 449533
Unsold
7 621587
Unsold
8 186330
Unsold
9 848682
Unsold
10 298807
Unsold
11 998131
Unsold
12 42609
Unsold
13 211973
Unsold
14 311573
Winner
Verifiably Fair Data
Server Seed (Revealed)
Drand Signature (Public)

9098b8f7925535114431a3598ab9ac78928ac411420753dce4a37d2ed177990cc3e309fa0e63aa76c9f71ff40815236f

Client Seed
Draw Timestamp
Round ID
Static Salt
Tickets Sold
Max Tickets
All Together
Pre-hash String
This is the combination of all the above data then provided to a HMAC-SHA256 hashing algorithm, using the Server Seed as the key.
Combined as: client_seed:round_id:static_salt:tickets_sold:max_tickets
Hash
The below hash is the result of the above pre-hashed string.
Verification
Multi-Number Draw
This is an API auto-draw that generated multiple numbers. Each number can be independently verified.
Index 0 Verified
The first number (index 0) matches the base round result. This confirms the draw is verifiably fair.
How to Verify Each Number

To manually verify each number, use the verification form with these client seeds:

Index 0 (first number): 1788725442571
Index 1, 2, 3... (subsequent numbers): 1788725442571:N
Replace N with the index number (1, 2, 3, etc.)

Use the verify button next to each number in the attempts table, or manually verify using the data below.

Open Verification Form
Drand Proof

This round was generated using the Drand Quicknet beacon.

Drand Round: 31974028
View Raw Beacon Data (API)
Draw Information
External ID 401
Numbers Derived 1,000
Pool Size 1,000,000
Status
Completed
Company Information
Name Cobra Competitions
Number SC746386
Draw Timeline
Committed
Drand Round
Revealed