ISO INTERNATIONAL STANDARD 23257 First edition 2022-02 Blockchain and distributed ledger technologies Reference architecture Technologies des chaines de blocs et technologies de registre distribué-Architecture de réference Reference number IS0 23257:2022(E) osi Copyright International Organization for Standardization IS02022 IS0 23257:2022(E) COPYRIGHT PROTECTED DOCUMENT @ IS02022 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 or ISo's member body in the country of the requester. ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Email: [email protected] Website: www.iso.org Published in Switzerland Copyightilleratinal Organization for Standardization @ IS0 2022 - All rights reserved