SIST EN ISO 22739:2025
(Main)Blockchain and distributed ledger technologies - Vocabulary (ISO 22739:2024)
Blockchain and distributed ledger technologies - Vocabulary (ISO 22739:2024)
This document defines fundamental terminology for blockchain and distributed ledger technologies.
Blockchain und Technologien für verteilte elektronische Journale - Begriffe (ISO 22739:2024)
Chaîne de blocs et technologies de registres distribués - Vocabulaire (ISO 22739:2024)
Tehnologije veriženja blokov in porazdeljene glavne knjige - Slovar (ISO 22739:2024)
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SLOVENSKI STANDARD
01-julij-2025
Tehnologije veriženja blokov in porazdeljene glavne knjige - Slovar (ISO
22739:2024)
Blockchain and distributed ledger technologies - Vocabulary (ISO 22739:2024)
Blockchain und Technologien für verteilte elektronische Journale - Begriffe (ISO
22739:2024)
Chaîne de blocs et technologies de registres distribués - Vocabulaire (ISO 22739:2024)
Ta slovenski standard je istoveten z: EN ISO 22739:2025
ICS:
01.040.35 Informacijska tehnologija. Information technology
(Slovarji) (Vocabularies)
35.030 Informacijska varnost IT Security
35.040.99 Drugi standardi v zvezi s Other standards related to
kodiranjem informacij information coding
35.240.40 Uporabniške rešitve IT v IT applications in banking
bančništvu
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN ISO 22739
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2025
ICS 01.040.35; 35.030; 35.240.99; 35.240.40
Supersedes EN ISO 22739:2022
English version
Blockchain and distributed ledger technologies -
Vocabulary (ISO 22739:2024)
Chaîne de blocs et technologies de registres distribués - Blockchain und Technologien für verteilte
Vocabulaire (ISO 22739:2024) elektronische Journale - Begriffe (ISO 22739:2024)
This European Standard was approved by CEN on 11 May 2025.
CEN and CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical
references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to
any CEN and CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN and CENELEC member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.
CEN and CENELEC members are the national standards bodies and national electrotechnical committees of Austria, Belgium,
Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia,
Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and United Kingdom.
CEN-CENELEC Management Centre:
Rue de la Science 23, B-1040 Brussels
© 2025 CEN/CENELEC All rights of exploitation in any form and by any means
Ref. No. EN ISO 22739:2025 E
reserved worldwide for CEN national Members and for
CENELEC Members.
Contents Page
European foreword . 3
European foreword
The text of ISO 22739:2024 has been prepared by Technical Committee ISO/TC 307 "Blockchain and
distributed ledger technologies” of the International Organization for Standardization (ISO) and has
been taken over as EN ISO 22739:2025 by Technical Committee CEN-CENELEC/ JTC 19 “Blockchain and
Distributed Ledger Technologies” the secretariat of which is held by UNI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by November 2025, and conflicting national standards
shall be withdrawn at the latest by November 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN-CENELEC shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 22739:2022.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN and CENELEC websites.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 22739:2024 has been approved by CEN-CENELEC as EN ISO 22739:2025 without any
modification.
International
Standard
ISO 22739
Second edition
Blockchain and distributed ledger
2024-01
technologies — Vocabulary
Chaîne de blocs et technologies de registres distribués —
Vocabulaire
Reference number
ISO 22739:2024(en) © ISO 2024
ISO 22739:2024(en)
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
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or ISO’s member body in the country of the requester.
ISO copyright office
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Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 22739:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
Bibliography .12
Index .13
iii
ISO 22739:2024(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 307, Blockchain and distributed ledger
technologies.
This second edition cancels and replaces the first edition (ISO 22739:2020), which has been technically
revised.
The main changes are as follows:
— inclusion of new terms and definitions.
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.
iv
ISO 22739:2024(en)
Introduction
This document defines terms relating to blockchain and distributed ledger technologies (DLTs) to clarify the
meaning of terms and concepts used in other documents within the domain of ISO/TC 307.
Clear, consistent and coherent standards require clear, consistent and coherent terminology. This document
follows the rules and guidelines set by ISO/TC 37, Language and terminology, for terminology standards.
This document applies to all types of organizations (e.g. commercial enterprises, government agencies and
non-profits). The target audience includes but is not limited to academics, solution architects, customers,
users, tool developers, regulators, auditors and standards development organizations.
v
International Standard ISO 22739:2024(en)
Blockchain and distributed ledger technologies — Vocabulary
1 Scope
This document defines fundamental terminology for blockchain and distributed ledger technologies.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www. iso. org/o bp
— IEC Electropedia: available at https:// www.e lectropedia. org/
3.1
asset
anything that has value to a stakeholder
[SOURCE: ISO 19299:2020, 3.1, modified — The Note to entry has been removed.]
3.2
block
structured data comprising a block header (3.4) and block data (3.3)
3.3
block data
structured data comprising zero or more transaction records (3.95) or references to transaction records
3.4
block header
structured data that includes a hash link (3.47) to the previous block (3.2), if present
Note 1 to entry: A block header can also contain a timestamp (3.91), a nonce (3.62), and other distributed ledger
technology (DLT) platform (3.33) specific data, including a hash value (3.48) of corresponding transaction records
(3.95).
3.5
block reward
reward given to miners (3.59) or validators (3.99) after a block (3.2) is confirmed (3.9) in a blockchain system
(3.7)
Note 1 to entry: A reward can be in the form of a cryptoasset (3.14).
3.6
blockchain
distributed ledger (3.23) with confirmed blocks (3.10) organized in an append-only, sequential chain using
hash links (3.47)
ISO 22739:2024(en)
3.7
blockchain system
system that implements a blockchain (3.6)
Note 1 to entry: A blockchain system is a type of distributed ledger technology (DLT) system (3.35).
3.8
blockchain technology
technology that enables the operation and use of blockchains (3.6)
3.9
confirmed
accepted by consensus (3.12) to be recorded in a distributed ledger (3.23)
3.10
confirmed block
block (3.2) that has been confirmed (3.9)
3.11
confirmed transaction
transaction (3.93) that has been confirmed (3.9)
3.12
consensus
agreement among distributed ledger technology (DLT) nodes (3.31) that:
— a transaction (3.93) is validated (3.97);
— the distributed ledger (3.23) contains a consistent set and ordering of records of validated transactions
Note 1 to entry: Consensus does not necessarily mean that all DLT nodes agree.
Note 2 to entry: The details regarding consensus differ among DLT systems (3.35) and this can be a distinguishing
characteristic between one DLT system and another.
3.13
consensus mechanism
set of rules and procedures by which consensus (3.12) is reached
Note 1 to entry: These rules and procedures are interrelated.
3.14
cryptoasset
crypto-asset
digital asset (3.21) implemented using cryptographic techniques
Note 1 to entry: distributed ledger technology (DLT) systems (3.35) can be used to manage or tra
...
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