Made Mark Specification

Version 2.0 — Published July 2026

Made Mark is an open specification for content authorship disclosure. It answers a question no existing specification addresses: how was this content made? A Creative Commons license tells you what you can do with content. C2PA tells you whether a file is untampered. Made Mark tells you who — or what — made it, in words anyone can read.

The vocabulary, label syntax, and URI structure below are frozen as of v2.0 — changes are governed by the governance policy and will never break existing implementations.

The three marks

Mark	Canonical URI	Meaning
Human Made	https://mademark.org/marks/human-made	Conceived and produced by people. No AI tools involved in the creative work itself.
Human Designed, AI Made	https://mademark.org/marks/human-designed-ai-made	Human creative direction, AI production. A person shaped the intent — AI produced the artifact.
AI Made	https://mademark.org/marks/ai-made	Conceived and produced primarily by AI, with no human creative direction for the specific output.

The mark is the only required field in a Made Mark label. Everything below is optional and layered on top.

Three layers, like a CC license

1. Visual mark — a badge anyone recognizes at a glance. See the icons repo.
2. Plain-language label — a structured string with a full form and a short form (below).
3. Machine-readable expression — the JSON-LD context and per-mark documents in this repo (ns/index.json, marks/*/index.json), plus XMP and C2PA embeddings (see Implementation, below).

The label

Full form:

MM · Human Designed, AI Made · Claude Sonnet 4.6 · Anthropic · CC BY 4.0

Field	Role
MM	System identifier
Human Designed, AI Made	Authorship mark (required)
Claude Sonnet 4.6	Model (optional)
Anthropic	Provider (optional)
CC BY 4.0	Source license (optional)

Short form — keeps the system identifier and the mark, drops the rest when space is tight:

MM · Human Designed, AI Made

Machine-readable expression

JSON-LD (web pages)

<script type="application/ld+json">
{
  "@context": "https://mademark.org/ns",
  "@type": "CreativeWork",
  "madeMark": {
    "mark": "https://mademark.org/marks/human-designed-ai-made",
    "model": "Claude Sonnet 4.6",
    "provider": "Anthropic",
    "sourceLicense": "CC BY 4.0"
  }
}
</script>

XMP (images, video, audio)

<rdf:Description rdf:about=""
  xmlns:mm="https://mademark.org/ns/">
  <mm:mark>https://mademark.org/marks/human-designed-ai-made</mm:mark>
  <mm:model>Claude Sonnet 4.6</mm:model>
  <mm:provider>Anthropic</mm:provider>
  <mm:sourceLicense>CC BY 4.0</mm:sourceLicense>
</rdf:Description>

C2PA assertion (signed media)

{
  "label": "https://mademark.org/marks/human-designed-ai-made",
  "data": {
    "@context": "https://mademark.org/ns",
    "mark": "https://mademark.org/marks/human-designed-ai-made",
    "model": "Claude Sonnet 4.6",
    "provider": "Anthropic",
    "sourceLicense": "CC BY 4.0"
  }
}

Made Mark is designed to travel inside a C2PA manifest as the human-readable semantic layer — it doesn't compete with C2PA's cryptographic provenance, it translates it into plain language. Standalone use without C2PA is fully supported.

Full implementation guidance, stable URIs, and integration examples: mademark.org/implement

Repo contents

ns/index.json                          JSON-LD context
marks/human-made/index.json            Human Made mark document
marks/human-designed-ai-made/index.json Human Designed, AI Made mark document
marks/ai-made/index.json               AI Made mark document

These mirror the documents served live at mademark.org/ns and mademark.org/marks/*/. If this repo and the live site ever disagree, the live site is authoritative.

License

The specification (this document, the JSON-LD context, and the mark documents) is dedicated to the public domain under CC0 1.0 Universal. See LICENSE.md. Implement it without asking.

The Made Mark name and [m] logo are trademarks of Daniel Richard Skrok — see mademark.org/governance.

Contact

Questions or proposed changes: hello@mademark.org