TS ISO 17442-3

TS ISO 17442-3 is the Turkish adoption of the standard that addresses legal entity identifiers (LEIs) in the context of verifiable LEIs (vLEIs), specifying the use of the LEI code defined in ISO 17442-1 within authentic chained data container (ACDC) credentials. In practical terms, it focuses on how a legal entity identity can be carried and verified in a digital, machine-readable form.

How vLEI extends the LEI concept

In general technical usage, an LEI is a unique identifier used to distinguish legal entities in financial and corporate contexts. A vLEI builds on that idea by making the identity digitally verifiable, so it can be shared not only as a readable code but as part of a data structure that supports cryptographic verification. An ACDC credential is a container model used for such verifiable data exchange, and this standard centers on the use of the LEI code inside that structure.

Why this subject matters in financial services

Reliable entity identification matters wherever organizations need to verify counterparties, exchange data across systems, or support reporting and digital workflows. This standard addresses the use of the LEI as a component of verifiable identity data rather than as a simple registry number. That makes it relevant to workflows where consistency, machine processability, and trust in the identity payload are important.

• The standard relies on the LEI code as defined in ISO 17442-1.
• Its focus is the use of verifiable LEIs in ACDC credentials.
• It supports digitally verifiable legal entity identity in financial services.
• It frames vLEI within a specific data-carrier and verification context rather than as a standalone generic concept.