Record the Zenodo DOI and unstick the PyPI badges

Zenodo had never archived v0.1.0. The webhook was installed 39 minutes
after the release was published, and its delivery log confirmed the
diagnosis: a single ping, no release event. Re-publishing the release
through a draft toggle replayed the event without deleting anything, and
Zenodo minted:

  version DOI  10.5281/zenodo.21879360
  concept DOI  10.5281/zenodo.21879359

Both are now recorded in CITATION.cff, codemeta.json and the changelog,
with the badge and a citation block in the README and the docs home page.
The distinction is spelled out rather than assumed: cite the version DOI
for reproducibility, the concept DOI for the project.

The PyPI and Python badges rendered broken because GitHub's camo proxy
had cached the not-found images produced while the package did not yet
exist on PyPI. The shields endpoints themselves resolved correctly all
along. Camo keys its cache on the source URL, so the badge URLs now carry
logo and label parameters, which busts the stale entries and improves
them at the same time.

Author: DiogoRibeiro7

.zenodo.json

@@ -40,6 +40,11 @@
       "identifier": "https://github.com/DiogoRibeiro7/setqca-python",
       "relation": "isSupplementTo",
       "scheme": "url"
+    },
+    {
+      "identifier": "https://pypi.org/project/setqca/",
+      "relation": "isIdenticalTo",
+      "scheme": "url"
     }
   ]
 }

CHANGELOG.md

@@ -10,6 +10,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [0.1.0] — 2026-08-10
 
 First public release.
+Archived on Zenodo: [10.5281/zenodo.21879360](https://doi.org/10.5281/zenodo.21879360)
+(concept DOI [10.5281/zenodo.21879359](https://doi.org/10.5281/zenodo.21879359)).
 
 ### Added
 

CITATION.cff

@@ -4,6 +4,14 @@ title: "setqca: Native Python Crisp-Set and Fuzzy-Set Qualitative Comparative An
 version: "0.1.0"
 date-released: 2026-08-10
 type: software
+doi: 10.5281/zenodo.21879360
+identifiers:
+  - type: doi
+    value: 10.5281/zenodo.21879359
+    description: Concept DOI resolving to the latest archived version
+  - type: doi
+    value: 10.5281/zenodo.21879360
+    description: Version DOI for release 0.1.0
 authors:
   - family-names: Ribeiro
     given-names: Diogo

README.md

@@ -2,8 +2,9 @@
 
 [![CI](https://github.com/DiogoRibeiro7/setqca-python/actions/workflows/ci.yml/badge.svg)](https://github.com/DiogoRibeiro7/setqca-python/actions/workflows/ci.yml)
 [![Documentation](https://github.com/DiogoRibeiro7/setqca-python/actions/workflows/docs.yml/badge.svg)](https://diogoribeiro7.github.io/setqca-python/)
-[![PyPI](https://img.shields.io/pypi/v/setqca.svg)](https://pypi.org/project/setqca/)
-[![Python](https://img.shields.io/pypi/pyversions/setqca.svg)](https://pypi.org/project/setqca/)
+[![PyPI](https://img.shields.io/pypi/v/setqca?logo=pypi&logoColor=white&label=PyPI)](https://pypi.org/project/setqca/)
+[![Python](https://img.shields.io/pypi/pyversions/setqca?logo=python&logoColor=white&label=Python)](https://pypi.org/project/setqca/)
+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.21879359.svg)](https://doi.org/10.5281/zenodo.21879359)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE)
 [![Checked with mypy](https://img.shields.io/badge/mypy-strict-blue.svg)](https://mypy-lang.org/)
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
@@ -217,9 +218,22 @@ mathematical core.
 
 ## Citing
 
-If you use `setqca` in published research, please cite the archived release.
+If you use `setqca` in published research, please cite the archived release:
+
+> Ribeiro, D. (2026). *setqca: Native Python Crisp-Set and Fuzzy-Set Qualitative
+> Comparative Analysis* (version 0.1.0) [Computer software]. Zenodo.
+> <https://doi.org/10.5281/zenodo.21879360>
+
+Two DOIs are available. Cite the **version DOI**
+([10.5281/zenodo.21879360](https://doi.org/10.5281/zenodo.21879360)) when the
+exact version matters for reproducibility, which for a set-theoretic method it
+usually does. Cite the **concept DOI**
+([10.5281/zenodo.21879359](https://doi.org/10.5281/zenodo.21879359)) to refer to
+the project as a whole; it always resolves to the latest archived release.
+
 Machine-readable metadata is provided in [`CITATION.cff`](CITATION.cff),
-[`codemeta.json`](codemeta.json) and [`.zenodo.json`](.zenodo.json).
+[`codemeta.json`](codemeta.json) and [`.zenodo.json`](.zenodo.json). GitHub
+renders "Cite this repository" from the first of these.
 
 ## License
 

codemeta.json

@@ -26,7 +26,9 @@
     "Python"
   ],
   "datePublished": "2026-08-10",
-  "identifier": "https://github.com/DiogoRibeiro7/setqca-python",
+  "identifier": "https://doi.org/10.5281/zenodo.21879360",
+  "sameAs": "https://doi.org/10.5281/zenodo.21879359",
+  "downloadUrl": "https://pypi.org/project/setqca/",
   "author": [
     {
       "@type": "Person",

docs/index.md

@@ -52,8 +52,16 @@ Continue with [Getting started](getting-started.md), or jump to the
 
 ## Citing
 
-If you use `setqca` in published research, please cite the archived release.
-Citation metadata is provided in [`CITATION.cff`](https://github.com/DiogoRibeiro7/setqca-python/blob/main/CITATION.cff).
+If you use `setqca` in published research, please cite the archived release:
+
+> Ribeiro, D. (2026). *setqca: Native Python Crisp-Set and Fuzzy-Set Qualitative
+> Comparative Analysis* (version 0.1.0) [Computer software]. Zenodo.
+> <https://doi.org/10.5281/zenodo.21879360>
+
+Cite the version DOI above when the exact version matters for reproducibility;
+cite the concept DOI [10.5281/zenodo.21879359](https://doi.org/10.5281/zenodo.21879359)
+to refer to the project as a whole. Citation metadata is provided in
+[`CITATION.cff`](https://github.com/DiogoRibeiro7/setqca-python/blob/main/CITATION.cff).
 
 ## License