Every puzzle is buried somewhere in Onchain Diary's articles. Find the word, unlock the key. Each key is a hash grid of 256 cells in four colors — whichever color fills more of your grid is your quality.
The riddle points to a specific article on the diary. The answer is a single word inside it.
One attempt per wallet per puzzle. Wrong answers cost nothing but your pride.
A correct answer mints your Diary Key on Arc. Free, gas is cents. Royalties 5% via ERC-2981.
In June 2026, an AI-assisted audit exposed a counterfeiting flaw that had sat unnoticed in one of Zcash's shielded pools since 2022. Which pool? The answer is one word, and it is written inside Onchain Diary's cold storage guide.
Hidden in: Zcash Cold Storage: How to Store ZEC Offline in 2026
Your key lives in your wallet. The image is fully on-chain — tokenURI renders it forever, no server involved.
One rule, verifiable on-chain. Each key is seeded from your mint itself. Count the cells of each color in the SVG — the majority color is the quality, and the contract exposes the same counts through countsOf(tokenId). Nobody, including us, picks your quality.