About

Seedproof is an independent explainer site about provably fair systems: how commit–reveal schemes work, how HMAC-SHA256 turns seeds into game results, and how you can check a round with a few lines of code. We are not a casino and we do not take bets.

Who writes here

Lena Hartmann (pen name). Lena writes about the cryptography behind online games: hash functions, commitments and how to check them yourself. She prefers code samples to adjectives.

Editorial method

• Cryptographic claims are checked against primary specifications and, where we publish code, against a test vector you can rerun.
• Every article is dated. If a fact changes we revise the page and the date.
• We do not invent testimonials or quote unnamed winners.
• We are not paid to alter a technical conclusion. Any future commercial relationship would be disclosed at the top of the page.

Independence

Seedproof is not a gambling operator, wallet or exchange. Nothing on this site is legal or investment advice. Online gambling is restricted or illegal in a number of countries, among them the United States, the United Kingdom, France, the Netherlands and Australia; check the rules that apply to you.