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Focus Group on Application of Distributed Ledger Technology

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​​​​​FG DLT

​​​Distributed ledger technology (DLT) refers the processes and related technologies that enable nodes in a network to securely propose, validate and record state changes (or updates) to a synchronised ledger that is distributed across the network’s nodes. ​​

The ITU-T Focus Group on Application of Distributed Ledger Technology (FG DLT) was established in May 2017

  • to identify and analyse DLT-based applications and services;
  • to draw up best practices and guidance which support the implementation of those applications and services on a global scale; and
  • to propose a way forward for related standardization work in ITU-T Study Groups.

​FG DLT concluded on 1 August 2019 and submitted the following Deliverables to its parent group:

Type Number Title ​Download
Technical Specification FG DLT D1.1 DLT terms and definitionsPDF
Technical Report FG DLT D1.2 DLT overview, concepts, ecosystemPDF
Technical Report FG DLT D1.3 DLT standardization landscape ​​PDF
Technical Report FG DLT D2.1 DLT use cases PDF (Report only)
ZIP (Report and use cases)
Technical Specification FG DLT D3.1 DLT reference architecture PDF (Specification only)
ZIP (Specification and platform mapping)
Technical Specification FG DLT D3.3 Assessment criteria for DLT platformsPDF
Technical Report FG DLT D4.1 DLT regulatory frameworkPDF​
Technical Report FG DLT D5.1 Outlook on DLTsPDF​​

Download all Deliverables in Word format (ZIP​).

Management and Contacts

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Acting Chair
  • Wei Kai, China ​Academy of Information and Communications Technology (CAICT)​, China
Vice-Chair
  • Suzana Maranhão, Brazilian Development Bank (BNDES), Brazil
Working Group Leaders
  • WG2: Suzana Maranhão, Brazilian Development Bank (BNDES), Brazil
  • WG3: Ruifeng (Victor) Hu, Huawei, China
  • WG4: Alexander Chuburkov, Fintech Association, Russian Federation
ITU Contact
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29 July - 1 August 2019, Geneva, Switzerland
Annou​n​​ce​ment​​ | Documents | Participants | R​​e​port | Post-meeting Workshop on DLT Scalability and Interoperability

1-4 April 2019, Madrid, Spain (hosted by Alastria, with the support of Universidad Pontificia de Comillas, the Madrid City Council and the Ministry of Economy and Business Affairs, Kingdom of Spain)
Announcement | Documents | Participants | R​​e​port | Pre-meeting workshop on DLT, Blockchain and SDG Attainment​​: Agenda | Slides

14-17 January​ 2019, Rio de Janeiro, Brazil (hosted by the Brazilian Development Bank (BNDES))
Announcement | Documents | Participants | R​e​port | Pre-meeting workshop on DLT for transparency and integrity​​

​9-12 October​ 2018, Beijing, China (hosted by CAICT and Trusted Blockchain Initiatives)
Announcement | Documents | Participants | Re​port | Pre-meeting Trusted Blockchain Summit: Agenda

​28-30 May 2018, Geneva, Switzerland
Announcement | Documents | Participants | Report

5-7 February 2018, Bern, Switzerland (hosted by Swisscom)
Announcement | Documents | Participants | R​eport

17-19 October 2017, Geneva, Switzerland
Announcement | Documents | Participants | Report

21 March 2017, Geneva, Switzerland
ITU workshop on Security Aspects of Blockchain
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Focus Group Collaboration Site

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Meeting documents, age​ndas, reports. Requires ITU user account. Sign up here.
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FG DLT Mailing List

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Please subscribe to the FG DLT mailing list​ for news, updates and announcements:​
1. Sign up for an ​​ITU user account​​ (if you don't have an account).
2. Account holders log in here,​ and select the fgdlt mailing list​. Then click on Subscribe.
3. To view previous exchanges on this mailing list, visit the list archive.

Illustrated step-by-st​ep instructions

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