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The purpose of the Authentic Chained Data Container (ACDC) Task Force is to help draft and incubate a family of IETF-focused specifications that defines the standard requirements for the semantics of Authentic Chained Data Containers. The semantics of ACDCs include both source provenance and authorization provenance or delegation.  The hypothesis is that the W3C Verifiable Credential standard may be expanded to serve as an Authentic Data Container (ADC) with authentic provenance chains (APC) as a super semantic. This may be further expanded to support both a source provenance sub-semantic and a delegated authorization sub-semantic. These are all encapsulated into the semantics with supporting syntax of an ACDC.


The table below lists all deliverables of the ACDC Task Force:

AcronymFull Name of DeliverableDeliverable TypeLink to
Draft Deliverable
Lead AuthorsStatus/Notes
ACDCAuthentic Chained Data ContainerSpecification

IETF Spec Repo

Active Draft
SAIDSelf-Addressing IdentifiersSpecificationIETF Spec RepoSamuel SmithActive Draft
CESRComposable Event Streaming RepresentationSpecificationIETF Spec RepoSamuel SmithActive Draft
CESR ProofCESR Proof SignaturesSpecificationIETF Spec RepoActive Draft
PTELPublic Transaction Event LogSpecificationIETF Spec Repo
IPEXIssuance and Presentation Exchange protocolSpecificationIETF Spec Repo

OOBIOut-Of-Band-Introduction protocolSpecificationIETF Spec RepoActive Draft
DID KERIKERI DID MethodSpecificationIETF Spec RepoPhil Feairheller
KERIKey Event Receipt InfrastructureSpecificationIETF Spec RepoSamuel Smith


Please add your name to this list if you wish to be a chair:


Please add your name to this list in any desired role:

Meeting Schedule

This TF schedules meetings as needed. Each meeting will be announced on the T mailing list and the TSWG  Slack channel. Currently, we are meeting every other week on Tuesdays, at 9 am US Mountain time, 1700 Central European Time, at

See latest documentation in the GitHub Repo here:

Meeting Agendas and Notes

All meeting agendas and notes are recorded on the ACDC Meeting Page.

Intellectual Property Rights (Copyright, Patent, Source Code)

As a Task Force (TF) of the Technology Stack WG (TSWG), the ACDC TF inherits the IPR terms from the TSWG JDF Charter. These include:

Mailing List and Communications

This task force uses the following for communications

  • Mailing List: This TF is preparing to set up its own mailing list. Watch this page for details.
  • Slack: This TF has its own dedicated Slack channel: #tswg-acdc-tf
  • Github: This TF will use GitHub issues for substantive conversations on topics, not Slack. This way the conversation is source controlled.

Specification Generation

This task force uses the following for communications

  • Markdown: Draft portions spec written in Markdown
  • SpecUP: Final version of spec processed with SpecUp

Use Cases

This table lists the starting set of use cases motivating the ACDC work.

GLEIF use case
Supply Chain use caseSupply chain refers to overall concept behind the flow of any type of goods and services.
Delegation use case (analog to ZCap usage)A car rental company delegates driving privileges for car X to Alice. Alice delegates to the attendant at valet parking.
Data graph with verificationBoarding a plane for international travel
Pure data provenanceCiting sources

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1 Comment

  1. Don't see a link for the github or mailing list.  Have these things been set up?