Book 00: Multi-Source Reference Overview
Overview of the four upstream taxonomy sources. Watch Reports posted here monthly by origo-taxonomy-watcher.py. Start here to understand the architecture.
Overview & Architecture
How the multi-source taxonomy works
Watch Reports
Monthly upstream source change reports — auto-posted by watcher
Open Decisions
Pending decisions e.g. CPI license, additional verticals
Watch Report — 2026-05-26
Cleantech Taxonomy — Watch Report Date: 2026-05-26 23:07 UTC | Status: 🔴 ERRORS P...
Source Registry
Upstream Source Registry The Cleantech Taxonomy v1.0 is built on four openly available institutio...
Source Alignment Map
How the Four Sources Align Each Cleantech Taxonomy sector draws from multiple upstream sources. T...
Cleantech Taxonomy Synthesis Methodology
How the Cleantech Taxonomy Is Built The Cleantech Taxonomy is a synthesis product — it does not r...
Divergence Map — Where CTH Extensions Go Beyond Sources
Purpose This page documents every area where the Cleantech Taxonomy diverges from or extends beyo...
Watch Report — 2026-05-27
Cleantech Taxonomy — Watch Report Date: 2026-05-27 23:49 UTC | Status: 🔴 ERRORS P...
Watch Report — 2026-06-01
Cleantech Taxonomy — Watch Report Date: 2026-06-01 13:00 UTC | Status: 🔴 ERRORS P...
Watch Report — 2026-07-01
Cleantech Taxonomy — Watch Report Date: 2026-07-01 13:00 UTC | Status: 🔴 ERRORS Pr...
Watch Report — 2026-09-01
Cleantech Taxonomy — Watch Report Date: 2026-09-01 13:00 UTC | Status: 🔴 ERRORS Pr...