British Standards Institution

Source:: ISO
Committee:: DLT/1 - Blockchain and Distributed Ledger Technology
Categories:: IT applications. Other
Comment period start date:: 07/07/2025
Comment period end date:: 30/08/2025
Number of comments:: 0

Comment by:

30th Aug

Scope

This document establishes a DLT agnostic, decentralized identifier (DID) framework for representing physical assets using tokens, which includes:

— A DID generation method: An algorithmic data method for generating decentralized identifiers from assets with immutable unique identifiers, such as serial numbers.

— A cryptographic method to tie asset data objects to the DID: An algorithmic hash tree data method for transferring a set of Asset Data Objects that are cryptographically tied together, agnostic to any specific DLT or Blockchain system.

— A DID method scheme: A DID method scheme to enable DID Registry interoperability, so the Digital Representation can be stored, resolved, or transferred to any compliant DID Registry.

— Real world trust anchor processes: Processes for utilizing off-chain trust anchors to establish proof of real-world human and machine generated events and information, that tie a real-world asset to its Digital Representation.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

11/04/2025

3. Public Comments

Public Comments start date:

07/07/2025

Public Comments end date:

30/08/2025

Learn more about the standards development process

Standards Development

BS ISO 20435 ISO 20435 A framework for representing physical assets using tokens

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