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VSO · VAP / VCP

AI needs a
Flight Recorder.

Verifiable records of AI decisions and actions.

VeritasChain Standards Organization (VSO) develops VAP, a shared framework for AI evidence, and domain specifications including VeritasChain Protocol (VCP) for finance.

Try the verification demo Explore specifications & SDK

Start with public sample evidence. Explore the requirements behind it.

How it works

From AI activity to evidence you can check.

Record the context, protect the record, and make its verification available to others.

  1. 01

    Record

    Capture the actor, input, action and outcome, with the relevant context.

  2. 02

    Detect changes

    Use signatures, hashes and anchors to check the integrity of the recorded evidence.

  3. 03

    Verify

    Check evidence against declared rules and trust inputs, with results others can inspect.

Record integrity does not prove that an AI decision was correct, safe or legally compliant.

Explore the evidence

See the records. Inspect the implementation.

Public examples and source code give you a concrete starting point for technical evaluation.

Public sample demo

VCP Explorer

Explore sample events and the SDK-backed Evidence Demo to see how recorded evidence and verification results are presented.

Evidence to inspect
  • Events
  • Batches
  • Manifest

Verification distinguishes valid, invalid and indeterminate results.

Open the Explorer

A first-party demo using sample evidence; it does not establish independent reproduction or production conformance.

First-party development preview

VCP SDK

A published offline core for producing and checking sample evidence. Review the source, examples and reproducible verification steps on GitHub.

View the SDK & examples

Use the reviewed commit and verification steps in the README. This development snapshot is separate from vcp-sdk-spec and does not establish production readiness or conformance.

Framework & profiles

One common framework. A specification for each domain.

VAP describes shared requirements. Domain profiles apply those requirements to a particular kind of record.

v1.2.0 · Draft 3

VAP

Shared requirements for the integrity, provenance and traceability of AI records.

Explore VAP Read the framework
Specification / domainPublished status
VCP Finance / algorithmic tradingv1.2.0 · Specification GA
CAP Content / creative AIv1.0 · Published specification
CPP Capture provenancev1.4 · Published specification
VAP-LAP Legal AIProposed profile

Publication of a specification is separate from implementation conformance. Full VAP conformance has not been established.

All profiles, capabilities & development status

Choose your starting point

Find the route for your work.

Build an integration

Start with the specification, SDK examples and known implementation limits.

Developer resources

Evaluate an application

Explore the use cases, identify the evidence your system needs, and discuss a bounded evaluation.

Use cases & evaluation

Review the research

Read the specifications, reproduction materials and standardization record, or contribute technical feedback.

Standardization & outreach

AI security research

EVIDECT describes a related service for security research evidence. Its service page explains the offering and current availability.

Explore EVIDECT (Japanese)

Latest announcements

View all announcements →
View all announcements →

Current status & evidence

Know what is published—and what remains open.

Read the current scope before using a result as evidence of conformance or certification.

Implementation limits

The published VCP v1.2 examples have known integrity issues. Proposed repairs and experimental extensions remain unadopted.

Known issues in VCP v1.2

Independent verification

First-party CI and rechecks of saved evidence are internal checks. Independent third-party reproduction has not been established.

Research evidence & limits

Certification availability

No independent CAB is currently registered. The published scheme and historical application process do not establish an available certification service.

Certification status

Corrections & relationships

Dated corrections and operating disclosures explain changes to public claims, including the AILEX relationship.

Read the corrections log

Common questions

What is VAP?

VAP (Verifiable AI Provenance Framework) defines shared requirements for verifiable records of AI decisions and actions. The published framework is v1.2.0 Draft 3; it is a draft, not a certification of an AI system.

How are VAP and VCP related?

VAP sets cross-domain requirements. VeritasChain Protocol (VCP) is the financial domain profile for algorithmic and AI-driven trading records. Other profiles address different domains.

What can these records prove?

Cryptographic evidence helps verify the integrity and provenance of recorded events. It does not establish that an AI decision was correct, safe or legally compliant.

Where can I start?

Read the VAP framework for the shared requirements. For trading systems, explore the VCP specification and the verification demo using sample data.

About VSO

Open specifications, with a named operator.

VeritasChain Standards Organization (VSO) is the specification initiative operated by VeritasChain Co., Ltd. We publish requirements, implementation work and their limitations for technical review.

Founder / VSO

TOKACHI KAMIMURA 上村 十勝

Tokachi Kamimura develops VAP and VCP and shares research and technical updates.

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