Blockchain and Distributed Ledger Technologies

This document establishes general principles for and methods of processing personal identifiable information (PII) in BC/DLT systems and provides requirements and recommendations derived from legal requirements and recommendations in the GDPR. The document clarifies relevant terms for both technical as well as legal experts. It establishes a methodological framework that helps identifying types of PII as well as mapping legal principles of the GDPR to technical measures available to improve data protection or mitigate the risk of processing PII in BC/DLT-systems. This document is aimed towards establishing a high level of privacy in BC/DLT-systems. This document is applicable to all BC/DLT-systems.

This document defines a process for reviewing and analyzing smart contract code. It specifies supporting methods to allow identification and mitigation of smart contract security vulnerabilities.

ISO Technical Specifications for Taxonomy and Classification for Smart Contracts. 

This document provides an overview of DLT-based collections of physical and digital items as well as collections management. This document discusses implementation considerations regarding DLT-based collections and collections management.

This document specifies tokenization methods in distributed ledger technologies (DLTs), including private DLTs, public permissioned DLTs, and public permissionless DLTs. It defines methodological requirements for tokenization and identifies the governance impacts, benefits, challenges and representative use cases associated with each DLT type. The scope is strictly limited to methodological aspects. It does not prescribe lifecycle models, asset taxonomies or jurisdiction-specific regulatory frameworks. Instead, it sets out governance-neutral criteria that enable tokenization to be secure, reliable, scalable and aligned with sustainability across diverse deployment contexts. This document provides a foundational, interoperable framework intended to support industry, regulators and technical committees, and to facilitate future collaboration and sector-specific adaptations.

This document provides a vocabulary for digital currencies (central bank digital currencies and non-fiat digital currencies)

This document specifies a taxonomy and an ontology for blockchain and distributed ledger technologies (DLT). The taxonomy includes a taxonomy of concepts, a taxonomy of DLT systems and a taxonomy of application domains, purposes and economy activity sections for use cases. The ontology includes classes and attributes as well as relations between concepts. The audience includes but is not limited to academics, architects, customers, users, tool developers, regulators, auditors and standards development organizations.

This document specifies a reference architecture for Distributed Ledger Technology (DLT) systems including blockchain systems. The reference architecture addresses concepts, cross-cutting aspects, architectural considerations, and architecture views, including functional components, roles, activities, and their relationships for blockchain and DLT. Publication date 2022-02; International Standard to be revised.

This document defines fundamental terminology for blockchain and distributed ledger technologies. Published in 01-2024; International Standard to be revised by ISO TC 307 WG1. 

This document defines a reference architecture for DLT-based decentralized identity systems. This includes: - The lifecycle management of digital identities and associated attributes and credentials in a decentralized identity system including migration of individual digital identities into another system - The lifecycle management of the relevant actors and entities, including digital wallets, within a decentralized identity system - The use of trust anchors through a decentralized identity system - The entire lifecycle management of the decentralized identity system