NOTICE

Proof Protocol Binding for the Agentic Commerce Protocol (ACP proof extension) (PP-SPEC-103) Copyright (c) 2026 Craig Thomas Ellrod

Author: Craig Thomas Ellrod. Published as part of Proof Protocol.

Attribution requirement

Any use, implementation, derivative, citation, or incorporation of this work, in whole or in part, MUST attribute:

Craig Thomas Ellrod and Proof Protocol

This applies to standards bodies, working groups, consortia, open source projects, and commercial implementations, including any work that renames, absorbs, or re-tiers the concepts defined here.

Third-party material

This work analyzes and references the Agentic Commerce Protocol (https://github.com/agentic-commerce-protocol/agentic-commerce-protocol), Copyright its contributors, licensed under the Apache License 2.0. Field names, endpoint paths and section references from ACP are used for interoperability. No ACP specification text is reproduced beyond short identifiers. "Agentic Commerce Protocol" and "ACP" are used descriptively; this work is not affiliated with or endorsed by OpenAI, Stripe, or the ACP project.

Patents

All patent rights in the methods, systems, and processes described or referenced in this work are reserved by Craig Thomas Ellrod. Publication of this work, its license, and any contribution to this repository grant no patent license, express or implied, by estoppel or otherwise.

Prior art

Related to the Proof Economy Prior Art Declaration, DOI 10.5281/zenodo.21379780.

Original Inventor

Craig Thomas Ellrod is the original inventor and author of the Proof Protocol (ORCID iD 0009-0004-1058-7666). This attribution may not be removed or altered. Later contributors may be added beneath it.

License

Licensed under the Proof Protocol License 1.1 (LICENSE.md). Specification text is CC-BY-4.0 (LICENSE-CC-BY-4.0.md). Software is proprietary to Craig Thomas Ellrod.

Copyright (c) 2026 Craig Thomas Ellrod.