SCITT D. A. Konviser Internet-Draft Gravit Open Network Foundation Intended status: Informational 20 July 2026 Expires: 21 January 2027 Verifiable Convergence Protocol (VCP) v0.1 draft-gravit-vcp-00 Abstract Verifiable Convergence Protocol (VCP) defines minimal data types and APIs for autonomous agents to achieve epistemic convergence without centralized truth arbiters. VCP is transport-agnostic, blockchain- agnostic, and model-agnostic. The key invariant: C(manipulation) > C(validation) for all Claim objects. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on 21 January 2027. Copyright Notice Copyright (c) 2026 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/ license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License. Konviser Expires 21 January 2027 [Page 1] Internet-Draft VCP July 2026 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Conformance . . . . . . . . . . . . . . . . . . . . . . . . . 2 3. Core Types . . . . . . . . . . . . . . . . . . . . . . . . . 2 4. Core Endpoints . . . . . . . . . . . . . . . . . . . . . . . 2 5. GQRVP Security Parameters . . . . . . . . . . . . . . . . . . 2 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 3 7. Security Considerations . . . . . . . . . . . . . . . . . . . 3 8. References . . . . . . . . . . . . . . . . . . . . . . . . . 3 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 3 1. Introduction As AI transitions to autonomous agents, lack of verifiable trust is a bottleneck. VCP provides minimal protocol for claims, actions, and traces. 2. Conformance A system is VCP-Compatible iff it implements 4 Core Endpoints, confidence via MWU plus Gossip as per GQRVP, Actions reference Claim as basis, and Trace is immutable and content-addressed. 3. Core Types Claim is atomic unit: claim_id, content, provenance, confidence 0.0-1.0, trace. Attestation is signature over Claim by DID. Action is state change grounded in Claims. Gateway MUST reject if basis empty or confidence less than 0.731. Trace is immutable record with final_confidence and merkle_root. Formal-to-epistemic threshold theta_critical equals 0.731. Empirical sybil-10x-g1.5 trace shows 30 scores above threshold. 4. Core Endpoints POST /v1/claim, GET /v1/claim/{id}, POST /v1/action/verify, GET /v1/ trace/{id} over HTTPS, application/json. 5. GQRVP Security Parameters MUST use eta equals 0.2, gamma equals 1.5, eps equals 0.1. Provides 67 percent Byzantine resilience. Konviser Expires 21 January 2027 [Page 2] Internet-Draft VCP July 2026 6. IANA Considerations No actions. 7. Security Considerations VCP guarantees cost of manipulation exceeds cost of validation given honest supermajority. 8. References [FOUNDATIONS] Gravit Open Network Foundation, "Gravit Epistemic Foundations", 2026. Author's Address Dr. Alex Konviser Gravit Open Network Foundation CH- Zürich Switzerland Email: ietf@gravit.space Konviser Expires 21 January 2027 [Page 3]