Nostro & Vostro Account Reconciliation Architecture
Automating correspondent banking reconciliation, mirror ledgering, and sponsor bank balance attestation.
Shadow Ledger Architecture for Correspondent Banking
Fintechs cannot rely solely on the sponsor bank's reporting. They must maintain an independent shadow ledger that records every incoming and outgoing wire, ACH batch, and fee debit as it is authorized, comparing this shadow record against daily bank statement files.
Parsing SWIFT MT950 and ISO 20022 camt.053 Statements
Correspondent banks deliver account statements via structured financial messaging: SWIFT MT950 (Statement Message) or ISO 20022 camt.053 (Bank-to-Customer Statement). Parsing these files extract transaction references (Field 61 / UETR), value dates, and running balance totals for automated line-by-line matching.
Cryptographic Interbank Verification with the NAYA Proof Engine
The NAYA Proof Engine ingests bank statement feeds, matches Nostro entries against Vostro statement lines, isolates unrecorded bank charges or delayed clearing wires, and outputs cryptographic proof of interbank reconciliation for regulatory review.
Frequently Asked Questions
Common questions about this topic
QDo fintechs have Nostro accounts?
Technically, yes. If a fintech holds an FBO account at a partner bank, that is effectively a Nostro relationship. The fintech maintains a shadow ledger of user funds, while the bank holds the actual funds.
QHow do you automate Nostro recon?
By ingesting MT940/950 (Statement) files from the correspondent bank daily and running a matching algorithm against the internal shadow ledger entries.
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