RELATED CONCEPT
KYC
Know Your Customer (KYC) refers to the mandatory institutional due diligence process of verifying the legal identity, corporate structure, beneficial ownership, and risk profile of clients before providing financial access.
FINANCIAL INFRASTRUCTURE CONCEPT
LEI
An LEI (Legal Entity Identifier) is a 20-character ISO 17442 identifier that uniquely references a legal entity participating in financial transactions.
Architectural context & analysis
Correspondent onboarding should bind LEI evidence to BIC routing identity and technical certificates.
Lapsed or mismatched LEIs should block go-live until KYB owners remediate.
Worked operational scenario
A node registration stores LEI 5493001QRCE7M8N0XY12 beside the institution BIC and mTLS certificate fingerprint.
Implementation considerations & controls
Re-validate LEI status on a scheduled cadence; do not treat onboarding-time checks as permanent.
CONCEPTUAL RELATIONSHIPS
Related concepts
RELATED CONCEPT
Correspondent Banking
Correspondent banking is an arrangement where one banking institution (the correspondent) provides deposit, payment, currency clearing, and fiduciary services to another institution (the respondent).
RELATED CONCEPT
Mutual TLS
Mutual Transport Layer Security (mTLS) is a cryptographic protocol where both client and server authenticate each other using digital X.509 certificates before establishing an encrypted tunnel.
RELATED CONCEPT
Protocol 101.1
Protocol 101.1 is the Global Server Banking messaging rail for authenticated IP-to-IP / server-to-server (S2S) financial instructions between registered institutional nodes—covering identity, acceptance, and status exchange rather than ledger posting or legal settlement finality.
AN INFORMED NEXT STEP
Establish clear operational parameters for LEI.
Start with your architecture, integration boundaries and operational requirements.