notes: research/papers/acdc-slides

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research/papers/acdc-slides Authentic Chained Data Containers summary v0.1 — 2026-10-14: drafted by Claude from the slides (PDF, 40 slides); unread by Mark; marked partner on Mark's word 2026-10-21, paraphrase only partner 443 # Authentic Chained Data Containers **Abstract.** A 40-slide deck by Samuel M. Smith for the Trust Over IP Technical Working Group ACDC Task Force, version 1.05 of July 2021. It sketches an authentic data container as an attestation with source references, provenance chaining rules, issues with Linked Data, authenticity verification models and authorization properties. Early design material from the task force's start. ## Summary The title slide places the deck in the Trust Over IP (ToIP) Technical Working Group's ACDC (Authentic Chained Data Container) Task Force, with links to its wiki, Slack channel, a GitHub repository and the ACDC white paper. The early slides treat an authentic data container as an attestation: an attestation identifier in the namespace of the testator (the controller who signs it), references to source attestations, data payload correlation identifiers, a payload and attached signatures, with a JSON example. Provenance chaining is sketched as a structure of prior sources, each with rules and weights, leading to a destination (issuer) and a sink (issuee). A slide on issues with Linked Data lists concerns: a signed container as a single shared subject, the need for interoperable schemas (JSON Schema preferred over JSON-LD contexts), the security of imported contexts, the context normalization problem, uncertainty in knowledge representation, and decision architecture layering. Following slides present decision-making as arbiters and aggregators over criteria, a block graph of decentralized autonomic data items passing between entities, and the statement that it is all about automated reasoning. The middle of the deck defines authentic as provenanced or securely attributed, sets out terminology and model properties for authenticity verification, and diagrams issuer-holder-verifier models (with verification at a verifiable data registry or at the issuer), joint and split delegator-service models, and closed and open loop models. The closing slides cover object capabilities against VC (Verifiable Credential) authorizations, verifiable chains, what is verifiable, authorization properties, weighted aggregation of authorizations, cooperative delegation and verification relationships, a decision-making model, data and activity value pyramids, and data supply chains. ## Key terms attestation, testator, datum, provenance chain, priors, authenticity verification, issuer-holder-verifier model, closed loop, open loop, weighted aggregation ## Claims and their evidence - An authentic data container can be modeled as an attestation with references to source attestations [informative] - JSON Schema is more general and widely used than JSON-LD contexts for interoperable schemas [informative] - Authorizations can be aggregated with weights across chains [informative] ## Related - ACDC Whitepaper - ACDC for Wizards (ACDC overview deck) - ACDC Task Force wiki ## Provenance Drafted by Claude on 2026-10-14 from the PDF from SmithSamuelM/Papers, titles of all 40 slides and the text of slides 1 to 8. Not yet read by Mark.

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