Marketing agency closes $5,000 contract by adding SHA-256 verification to client giveaways

The challenge

A São Paulo-based digital marketing agency was bidding on contracts with Fortune-500 brands operating in Brazil. They lost their first two big RFPs (one cosmetics multinational, one consumer electronics) for the same reason: legal teams refused to approve giveaways without cryptographic proof of fair drawing. The agency was using a popular giveaway tool that produced PDF certificates — but those PDFs were just images, not verifiable. Legal called them 'security theater'.

The PickAWin strategy

The agency switched all client giveaways to PickAWin Premium specifically for the SHA-256 verifiable certificates. Each draw now produces a downloadable PDF with a SHA-256 hash that maps to a public verification URL. Anyone — auditor, legal team, regulator — can paste the hash into the verification endpoint and confirm the draw was deterministic, fair, and not tampered with. The agency added a one-page 'cryptographic compliance' brief to their pitch deck explaining how the hash works.

"Our pitch used to end with 'and we'll send you a certificate of the winner'. Now it ends with 'and you can verify the draw on a public URL with SHA-256 cryptography'. Same sentence, completely different reaction from legal teams."

— Júlia Costa, agency founder

Timeline

Key takeaways

• →Compliance is a feature, not a friction. Enterprise buyers WANT the audit trail — most giveaway tools just don't provide it.
• →A SHA-256 hash on a public URL is not just 'better' than a PDF certificate — it's qualitatively different. It's the difference between a screenshot and a blockchain transaction.
• →Lead with the proof, not the promise. The agency now demos the verification URL during the pitch, not after.
• →$7.49 per draw is a rounding error in a $5k contract. Stop worrying about per-draw cost when the per-draw value is enterprise.