Errata & Transparency
1. Errata log
All corrections to indicators, member profiles, council records, and aggregated values are logged with severity (Critical / Major / Minor), pre-correction value, post-correction value, date, and source.
2. Data integrity policy
To preserve KOUSOU 0's neutrality, third-party stance, and citation-readiness, we publish our data-integrity policy. This includes indicator definitions, aggregate base populations (e.g., 1,741 municipalities nationwide), and aggregation constraints (e.g., 100+ speeches filter for theme volume rankings).
3. Commentary articles are at ISVD Labs
KOUSOU 0 is a neutral data basis and does not produce editorial commentary on this site. Commentary articles based on KOUSOU 0 data are published at the ISVD Labs page, operated by the parent organisation.
4. Data licence
All data on this site is published under Creative Commons Attribution 4.0 International (CC BY 4.0, commercial use permitted with attribution). You may freely use the data for journalism, research, and education. Please attribute the source as "KOUSOU 0 (kousou0.isvd.or.jp)".
