Cryptographic Trust — How Draw Verification Works
Each draw uses a random 256-bit seed; the result shows the seed and SHA-256 hashes (also on the PDF certificate). Automatic draws get a public result page, and the hash can be checked at /verificar to confirm the published result was not edited afterwards.
How verification works
- Step 1 — The seed. When the draw runs, the browser generates a random 256-bit seed.
- Step 2 — The draw. The winner order is derived from that seed. The same seed and the same participant list give the same result.
- Step 3 — The record. The result shows the seed, SHA-256(seed) and the SHA-256 hash of the winner list. The PDF certificate carries the hash.
- Step 4 — Checking. Automatic draws get a public result page. Paste the hash at /verificar to confirm the published result was not edited afterwards. The participant list is not published, so outsiders cannot re-run the draw.
Recent public results
Pulled from the public result pages of recent automatic draws. Open a result page to see its seed and hashes.
| Date | Post | Participants | Winner | SHA-256 hash | Seed |
|---|---|---|---|---|---|
| 2026-10-13 | DeS2VDJtwrO | 321 | @lucymarcos_lima | 2c7ee5472911… | 7a56d7a5afad… |
| 2026-10-13 | DeXhLW1Ra1j | 65 | @raianemiisfreitas | 9aa4723585a9… | ee78c761342b… |
| 2026-10-12 | DePL_-FxkEe | 587 | @natha.liamota | 996cbdff25c6… | bbff00b19f5a… |
| 2026-10-12 | DeHUTinFVr0 | 295 | @marcia__adriana_rodrigues | 62927bee32db… | e7448344c404… |
| 2026-10-12 | DdZ4iOol4uu | 12,762 | @taciliane_ | 960314b232e7… | edd8e0217690… |
| 2026-10-12 | DdpEmditEsb | 1,556 | @adr1cr1s | 51c84b654e65… | 9556c9c820e5… |
View result page: https://pickawin.app/w/mv6o6bi9t1
Why this matters
A screenshot of a winner is easy to fake. Here every result carries its seed and SHA-256 hashes, and the published result of an automatic draw can be checked at /verificar: an edited result would no longer match its hash.
Check a result hash at /verificar.