# PTPGE

> PTPGE — the Periodic Table of Print & Graphic Elements — is the open specification of print — two parts: meaning (727 terms, 56 product templates, 12 languages, permanent URIs, CC BY 4.0) and identity (the Configuration Fingerprint ptpge-cfs/1 and its mark). The vocabulary is used in four document types (vendor declaration, supplier catalogue, request, UCP manifest), each with a schema under ptpge.org/v1/schemas/. Held by PTPGE, a non-profit association (being formed). First implementation: GutenLex (gutenlex.org).

## Endpoints
- Terms as JSON-LD (SKOS), open: https://internal.ptpge.org/v1/ — version https://internal.ptpge.org/v1/version.json
- MCP server (open, no key): https://mcp.ptpge.org/mcp (alias: open.mcp.ptpge.org)
- Fingerprint resolver: https://ptpge.org/f/<hash>
- Playground: https://ptpge.org/playground

## Facts
- Data version 2026-10-07 · licence CC BY 4.0 · method DOI 10.5281/zenodo.21451592
- Quote terms by URI (https://ptpge.org/v1/…), not by label.