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 6, 2026 at 12:42 PM, Rafflecopter ran the giveaway “Giveaway” on Instagram. The winner was @mancakovachova, selected from 30 unique participants using a cryptographically secure random number generator (CSPRNG) with SHA-256 hashing.

SHA-256 hash: f7586d316d79fd0d83c0eb43ff7e424864c0615184404fa11e9a90d89bf076ed

Random seed: 775175f6f030812d8bc43d7445039a1c50d7ec4a12d1c9d8596ac04951dca601

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

mancakovachova

Giveaway

May 6, 2026 at 12:42 PM

Draw Date

Cryptographic Proof

Algorithm

SHA-256 CSPRNG

Seed

775175f6f030812d8bc43d7445039a1c...

SHA-256 Hash

f7586d316d79fd0d83c0eb43ff7e424864c0615184404fa11e9a90d89bf076ed

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 f7586d316d or use the in-browser verifier.

Platform: Instagram·View Post
f7586d316d

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