Six questions, and what we hold for each. This is not a score and there is no letter at the end of it: the answers are different kinds of thing and compressing them into one number would hide exactly the part a reader needs. Where we have nothing, the row says so. 3 of 6 are not measured for this vault.
Amber means the evidence is incomplete, never that the vault is risky, and grey means we did not read it rather than that there is nothing to read. Nothing here is a rating, a recommendation, or a statement that this vault is safe.
A quoted rate is one input, not a verdict. These are the same seven fields in the same order for every vault, so a high rate and a high rate nobody can withdraw from do not look alike.
Everything above is reconstructed from public data. A declaration is free, signed from this vault’s own key, and cannot be edited afterwards.Note 28
A vault that is eighty per cent one depositor is a vault whose price can be reset by a single withdrawal, and whose headline TVL says almost nothing about whether anyone else believes in it. Concentration is the risk a return figure never shows, and it moves before the return line does.
See what unlocksAlready a customer? Sign inFigures computed from Krystal’s reported vault series: 2026-09-02 to 2026-10-03, 96 observations. 30-day window from 2026-09-03.
These fields are empty because nobody has attested them, not because we failed to find them. An operator who registers gets a record that provably cannot be edited after the fact, and a grade no unregistered strategy can reach.