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 31, 2026 at 6:51 PM, Rafflecopter ran the giveaway “BLUE Ball × Ateliê450 Janta²” on Instagram. The winner was @gaiadobrasil, selected from 133 unique participants using a cryptographically secure random number generator (CSPRNG) with SHA-256 hashing.
SHA-256 hash: b7cac248c3b62439193ad750e11cadd27f35ec9b362791bac872c8891e4fcd1b
Random seed: 5db774eb1a2a0d1819d79812b6ae70e538b9ee4d157b35bc58a94368be42b308
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
BLUE Ball × Ateliê450 Janta²
May 31, 2026 at 6:51 PM
Draw Date
SHA-256 CSPRNG
5db774eb1a2a0d1819d79812b6ae70e5...
b7cac248c3b62439193ad750e11cadd27f35ec9b362791bac872c8891e4fcd1b
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 b7cac248c3 or use the in-browser verifier.
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