True when the real USD the platform holds in trust covers every credit it owes back to users: the credits sitting in their spendable balances. Credits are converted to USD at the peg, the fixed CREDIT-to-USD rate.
True when every account's hash chain recomputes to its recorded value, proving no posting was tampered with after the fact.
True when debits and credits cancel out within each currency, so no money was created or lost.
True when, for every account, the cached running balance matches the balance re-added from its
debit and credit lines (i.e. drift is empty). The lines are the source of truth; the cached
figure can be wrong. A diverged cached balance (mis-saved or directly-edited row) shows up here
even when the books still balance.
Every account whose cached balance disagrees with the balance re-added from its debit and credit
lines; empty when consistent is true. Each entry names the account and both figures, so an
operator sees the gap's size and direction. Catches both a real account whose cached total
drifted and a leftover balance row with no postings (re-added to zero, so any cached figure is
wrong).
True when no user account has gone below zero.
How much USD backing is missing; zero when backed is true.
The result of the integrity check: each flag is one property the ledger is supposed to hold.