Foreword

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This document was prepared by Technical Committee ISO/TC 68, Financial services, Subcommittee SC 8, Reference data for financial services.

This second edition cancels and replaces the first edition (ISO 24165‑1:2021), which has been technically revised.

The main changes are as follows:

— The scope for digital token identifiers (DTIs) has been extended to include non-fungible tokens (NFTs).
— The standard now separates DTIs to identify tokens and digital ledger identifiers (DLIs) to identify ledgers (only ledgers that have one or more DTIs linked to them are in scope).
— Anchor block information has been added where genesis block is either not known/lost.
— Functionally Fungible Group has been renamed Equivalent Group.
— Addition of Issuer and Maintainer as informative, optional fields.
— Native token has been renamed protocol token.

A list of all parts in the ISO 24165 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A complete listing of these bodies can be found at www.iso.org/members.html.

BS ISO 24165-1:2025

Digital token identifier (DTI). Registration, assignment and structure - Method for registration and assignment

Current

Published:

31 May 2025