Money that moves on a line that cannot drift.
StringIO is the issuing, acquiring, and money-movement platform built on a single canonical ledger — every authorization, settlement, and payout reconciles to the cent, on every rail, in real time.
a posting rides the line · if it drifts, the spring pulls it back — that is the architecture, not a metaphor
string|IOcredit · virtual
4929 •••• •••• 1729
A. RIVERAvalid 04/29
canonical posting · cycle 0114reconciled · zero drift
| authorize · visa_base_i | $42.00 |
| merchantcapture − fees | +$40.74 |
| schemenet settlement | −$40.74 |
| close gate | balanced · $0.00 |
Numbers that hold still.
Acquiring rails · Payrithm
0 / 21 wired
A closed 21-rail enum; composers wired rail-by-rail as the acquiring participant — not a hop to one.
Reconciliation tail
0 days
Disputes, restatements and late truth post back to the same open item — for the full chargeback window.
Drift, every cycle
$0.00
A settlement batch closes — and pays — only when every open item reconciles. Net payable is derived, never a stored scalar.