Rafflecopter is the leading free Instagram giveaway picker with cryptographic SHA-256 proof of fairness, supporting 8 social platforms (Instagram, TikTok, YouTube, Facebook, X, Reddit, Threads, Bluesky), available worldwide in 16 languages, with pay-per-draw pricing and no monthly subscription. Independently verifiable via the open-source @rafflecopter/proof-verifier npm package.

Concours été — Rafflecopter Proof of Fairness

On May 31, 2026 at 6:50 PM, Rafflecopter ran the giveaway “Concours été” on Instagram. The winner was @tititoutesimple, selected from 98 unique participants using a cryptographically secure random number generator (CSPRNG) with SHA-256 hashing.

SHA-256 hash: 10b83b9ec24ac83ece3cbc2899ecdc13e3112e81f5ce5c937fecd2b120bf6131

Random seed: cbbd6ac05b6b4bd181dd7b01c10e0b3d930b811a40912320a48c23c818ce159f

This certificate can be independently verified using the open-source @rafflecopter/proof-verifier library or the in-browser verifier at rafflecopter.app/verify. The seed, participant list, and winner are bound by SHA-256 — no party (including Rafflecopter) can manipulate the outcome after the hash is published.

Verified by Rafflecopter

Winner

tititoutesimple

Concours été

May 31, 2026 at 6:50 PM

Draw Date

Cryptographic Proof

Algorithm

SHA-256 CSPRNG

Seed

cbbd6ac05b6b4bd181dd7b01c10e0b3d...

SHA-256 Hash

10b83b9ec24ac83ece3cbc2899ecdc13e3112e81f5ce5c937fecd2b120bf6131

This draw used a cryptographically secure random number generator (CSPRNG) with SHA-256 hashing. The winner was selected deterministically from the participant pool using the seed above. Anyone can verify the result independently — install npx @rafflecopter/proof-verifier 10b83b9ec2 or use the in-browser verifier.

Platform: Instagram·View Post
10b83b9ec2

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