---
id: "papers-bulk-issuance-privacy"
type: "talk"
type_label: "Talks and presentations"
title: "Bulk Issuance: Balancing security of perpetually verifiable issuances with correlation risk for privacy protection"
maintainer: "Samuel M. Smith"
authors:
  - "Samuel M. Smith"
date: "2026-04"
year: 2026
reading_level: "implementer"
reading_level_label: "Implementer"
reading_level_meaning: "developers working in or against the code"
evidence: "informative"
evidence_meaning: "an author's paper, deck, tutorial or post explaining the suite"
status: "quiet"
status_meaning: "no change in six to eighteen months; still correct"
access: "public"
access_meaning: "anyone with the link"
topics:
  - "specifications"
  - "cryptography"
  - "theory"
roles:
  - "developer"
  - "security-architect"
  - "standards-policy"
  - "researcher"
source_url: "https://github.com/SmithSamuelM/Papers/blob/master/presentations/BulkIssuancePrivacy.pdf"
source_license: null
source_license_note: null
found_on: "smith-papers"
kerisse_credit: false
abstract_license: "CC BY 4.0"
abstract_license_url: "https://creativecommons.org/licenses/by/4.0/"
abstract_attribution: "KSKB, the KERISuite Knowledge Base (https://kskb.dev/)"
last_checked: "2026-10-15"
kskb_url: "https://kskb.dev/cards/papers-bulk-issuance-privacy/"
kskb_app_url: "https://kskb.dev/#item/papers-bulk-issuance-privacy"
kskb_record_url: "https://kskb.dev/data/kskb/resources/papers-bulk-issuance-privacy"
kskb_markdown_url: "https://kskb.dev/export/cards/papers-bulk-issuance-privacy.md"
---

# Bulk Issuance: Balancing security of perpetually verifiable issuances with correlation risk for privacy protection

A 48-slide deck by Samuel M. Smith on bulk issuance of Authentic Chained Data Containers (ACDCs): how an issuer can give a holder many unlinkable copies of a credential while keeping each one verifiable against the issuer's key state. It covers blindable state registries, Sparse Merkle Tree anchoring for herd privacy, graduated and contractually protected disclosure, and the IPEX exchange protocol, for implementers and designers of credential systems.

Labels: reading level Implementer; evidence informative (an author's paper, deck, tutorial or post explaining the suite).
Source: https://github.com/SmithSamuelM/Papers/blob/master/presentations/BulkIssuancePrivacy.pdf (license not recorded).
The abstract is KSKB's own text under Creative Commons Attribution 4.0 (CC BY 4.0), https://creativecommons.org/licenses/by/4.0/; credit KSKB, the KERISuite Knowledge Base (https://kskb.dev/).