---
id: "kerione-verifiable-voice-protocol"
type: "specification"
type_label: "Specifications and glossaries"
title: "Verifiable Voice Protocol"
maintainer: "Daniel Hardman (Provenant, Inc.)"
authors:
  - "Daniel Hardman (Provenant, Inc.)"
date: "2026-10-05"
year: 2026
reading_level: "normative"
reading_level_label: "Normative"
reading_level_meaning: "the specifications and the documents they defer to"
evidence: "informative"
evidence_meaning: "an author's paper, deck, tutorial or post explaining the suite"
status: "active"
status_meaning: "changed within the last six months, or a live service"
access: "public"
access_meaning: "anyone with the link"
topics:
  - "specifications"
  - "deployments"
roles:
  - "developer"
  - "security-architect"
  - "standards-policy"
  - "investor"
  - "business-development"
source_url: "https://datatracker.ietf.org/doc/draft-hardman-verifiable-voice-protocol/"
source_license: null
source_license_note: null
found_on: "keri-one-resources"
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: "2026-10-14"
kskb_url: "https://kskb.dev/cards/kerione-verifiable-voice-protocol/"
kskb_app_url: "https://kskb.dev/#item/kerione-verifiable-voice-protocol"
kskb_record_url: "https://kskb.dev/data/kskb/resources/kerione-verifiable-voice-protocol"
kskb_markdown_url: "https://kskb.dev/export/cards/kerione-verifiable-voice-protocol.md"
---

# Verifiable Voice Protocol

An individual Internet-Draft (not adopted or endorsed by the IETF) defining the Verifiable Voice Protocol (VVP), which authenticates and authorizes organizations and individuals making or receiving telephone calls. A caller's signed passport travels in a SIP INVITE through STIR and cites a dossier of evidence built as ACDCs issued by KERI identifiers; the draft gives the roles, the passport fields and the verification algorithm. For implementers in telecommunications and verifiable calling.

Labels: reading level Normative; evidence informative (an author's paper, deck, tutorial or post explaining the suite).
Source: https://datatracker.ietf.org/doc/draft-hardman-verifiable-voice-protocol/ (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/).