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.
On August 19, 2026 at 6:37 PM, Rafflecopter ran the giveaway “KOKO Pop-up” on Instagram. The winner was @merve.demir618, selected from 49 unique participants using a cryptographically secure random number generator (CSPRNG) with SHA-256 hashing.
SHA-256 hash: 1292f03ec36bb8fbc041158d91bba9af07615078ad327f8133b571888885611f
Random seed: fef276d0fbcd90f5d58f293563a167e51b95d36c130a7aea8df4d42f57f0f118
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.
Winner
KOKO Pop-up
August 19, 2026 at 6:37 PM
Draw Date
SHA-256 CSPRNG
fef276d0fbcd90f5d58f293563a167e5...
1292f03ec36bb8fbc041158d91bba9af07615078ad327f8133b571888885611f
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 1292f03ec3 or use the in-browser verifier.
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