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Comparison: ACDCs and Merkle Tree Certificates

Practitioner informative

Maintainer: Daniel Hardman · 2026-01-06 · checked 2026-10-15

A paper by Daniel Hardman comparing Authentic Chained Data Containers (ACDCs), with the Key Event Receipt Infrastructure (KERI), and Merkle Tree Certificates (MTCs), a proposed evolution of the web public key infrastructure (WebPKI). It is organized by function: what each commits to and proves, freshness and revocation, operational cost, post-quantum readiness and standardization. It states that it is not a bake-off and is written for readers fluent in one of the two worlds.

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