Idempotency
Informational
The property that applying an operation twice has the same effect as applying it once. Table stakes for payment APIs, usually implemented with client-supplied keys.
Edition 01
2026 · Q3
Σ debits ≡ Σ credits
Truth, gathered.
Informational
The property that applying an operation twice has the same effect as applying it once. Table stakes for payment APIs, usually implemented with client-supplied keys.