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 28, 2026 at 5:42 PM, Rafflecopter ran the giveaway “sorteio do kit” on Instagram. The winner was @david_st03, selected from 6.250 unique participants using a cryptographically secure random number generator (CSPRNG) with SHA-256 hashing.
SHA-256 hash: 0b9b258a17d99f74457ac0bd08e28741a30c1bdc1a0facecea82baa39028e7fe
Random seed: 8cfe5668de2cecc27a86ac8a8f6390d3e98b50f0ea80d963920763f7ff18c570
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
sorteio do kit
August 28, 2026 at 5:42 PM
Draw Date
SHA-256 CSPRNG
8cfe5668de2cecc27a86ac8a8f6390d3...
0b9b258a17d99f74457ac0bd08e28741a30c1bdc1a0facecea82baa39028e7fe
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 0b9b258a17 or use the in-browser verifier.
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