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.

Giveaway — Rafflecopter Proof of Fairness

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.

Verified by Rafflecopter

Winner

oletschka_83

Giveaway

May 18, 2026 at 10:03 AM

Draw Date

Cryptographic Proof

Algorithm

SHA-256 CSPRNG

Seed

cffd3b882b1dbad0d7ac89ebf4591a7f...

SHA-256 Hash

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.

Platform: Instagram·View Post
7f43c90ab4

Powered by Rafflecopter — fair, cinematic, and verifiable giveaways. Run yours →