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Community & Business Groups

Blockchain Community Group

The mission of the the Blockchain Community Group is to generate message format standards of Blockchain based on ISO20022 and to generate guidelines for usage of storage including torrent, public blockchain, private blockchain, side chain and CDN. This group will study and evaluate new technologies related to blockchain, and use cases such as interbank communications.

w3c/web-ledger w3c/blockchain

Group's public email, repo and wiki activity over time

Note: Community Groups are proposed and run by the community. Although W3C hosts these conversations, the groups do not necessarily represent the views of the W3C Membership or staff.

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BlockchainCG bi-weekly teleconference schedule


BlockchainCG agreed new teleconference schedule

webex concall link :

the times by cities are as following

  • San Francisco, USA: Wednesday 08:00 AM. PST
  • New York, USA: Wednesday 11:00 AM. EST
  • London, United Kingdom : Wednesday 04:00 PM. GMT
  • Seoul, South Korea : Thursday 01:00 AM. KST
  • Corresponding UTC: Wednesday 16:00

ICS file can be downloaded from here

Blockchain CG meeting at TPAC2016

Dear Blockchain Community Group Members and Friends of the Group,

Marta shared agenda for tomorrow.
CHANGE: We meet at 10.30 in 1.05, Hall 4, First Floor.
We will be working UNTIL 3PM.
1. Outcome of the Boston workshop
10:30 – 11.00
    1. Presentation of the Report
    2. What did we Learn
    3. What was missing
    4. Where did we plan to go from there?
2. Organization.
11.00 – 11.30
         1. Managing member’s shared info
         2. Management and means of communication:
  • Teleconferences
  • Mailing Lists
  • Rocket chat/ slack/ IRC
  • F2F meetings
  • Home page
  • Issue Tracker 
        3. Proposing agenda items and creating agenda for every call
        4. What other groups are there we should be collaborating with?  
  Most of them will be meeting during the TPAC. Lets figure out when and join those meetings:
  • Digital Assets
  • Verifiable Claims
  • Web Payments
  • Interledger
  • World of Things
  • Coincheck
3. Identification of Use Cases
11.30 – 12.15
4. Identification of missing or relevant APIs & Charter proposals
12.15 – 13.00
13.00 – 13.45
5. Participation – why is there so little activity, how can we improve it
13.45 – 14.15
6. Organizing next workshop
14.15 – 14.30
7. Deliverables
14.30 – 15.00
  1. What should we have in 3 months?
  2. What should we have in 6 months?
  3. What should we have in 9 months?
  4. What should we have in 12 months?

May 26 Weekly Online Meeting : SWIFT Invited

I am glad to announce that we will have a blockchain specialist from Society for Worldwide Interbank Financial Telecommunication (also known as SWIFT) for the regular weekly meeting.

He will explain the society’s approach for the blockchain technology. He will also explain how to utilize ISO20022 for the entire blockchain community.

The link for SWIFT meeting is as following:

NOTE: The link is different from the usual link we have been using for the past few weeks.

Blockchain CG online weekly meeting


Be advised that the Blockchain CG weekly meeting is always on Thursday 10PM KST. This is GMT+9 (06:00 AM (PDT), 15:00 (CET), or 09:00 AM (EDT)).

Please check the timezone at

The meeting is link is as following:


BlockchainCG online meeting at 5/May/2016 at 22:00 KST

We have rescheduled meeting time to 22:00 by the doodle result (

22:00(KST), 06:00 AM (PDT), 15:00 (CET), 09:00 AM (EDT)

see timezone table at

the concall link is

hope to see participants today.