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 May 18, 2026 at 10:03 AM, Rafflecopter ran the giveaway “Giveaway” on Instagram. The winner was @oletschka_83, selected from 31 unique participants using a cryptographically secure random number generator (CSPRNG) with SHA-256 hashing.
SHA-256 hash: 7f43c90ab4373978e983f12a0b7f89d4ab46b172eb21d2b4f9a9af18e91c4969
Random seed: cffd3b882b1dbad0d7ac89ebf4591a7fe20a0d8240012ca90cc564c9db7527d1
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
Giveaway
May 18, 2026 at 10:03 AM
Draw Date
SHA-256 CSPRNG
cffd3b882b1dbad0d7ac89ebf4591a7f...
7f43c90ab4373978e983f12a0b7f89d4ab46b172eb21d2b4f9a9af18e91c4969
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 7f43c90ab4 or use the in-browser verifier.
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