HASHO INVINCIBLE
El Mundial del Descifrado — World Decryption Championship
One encrypted vault. One public SHA256 hash. No backend. No database. No hidden API.
Open the vault if you can.
Verification
sha256sum -c SHA256SUMS.txt
Boundary
The challenge is the vault, not the infrastructure.
Allowed: download, verify, analyse and attempt to open the vault.
Forbidden: DDoS, phishing, malware, doxxing, social engineering or attacks against infrastructure.
Legal note
This is a skill-based technical challenge, not a lottery, raffle or game of chance.
File safety
The encrypted vault is a data file. It is not software and does not execute code.
The decrypted prize package is intended to contain only the 7 digital books and the prize-claim instructions.
It is not intended to contain malware, scripts or executable payloads.
Prize
The decrypted ZIP contains the prize package: 7 digital books.
The instructions to claim the physical-book prize are explained inside the decrypted ZIP.