card: how to cite, corrections ledger and verification links

README.md

@@ -215,3 +215,27 @@ Measurement credential, never certification. Free refresh only.
 
 
 Owner: N-Sites — free paste onto HF/Kaggle printers. Hub LIVE **131** (kill 1191/1196). card_index n=335. Never invent VC/revenue. Stamp 2026-09-14T10:37Z.
+
+<!-- csoai-cite-v1:start -->
+## How to cite
+
+CSOAI Ltd (Council of AI). *Open-weight model census*. 2026. Hugging Face dataset `csoai/oss-model-census`. https://huggingface.co/datasets/csoai/oss-model-census
+
+```bibtex
+@misc{csoai_oss_model_census,
+  title        = {Open-weight model census},
+  author       = {{CSOAI Ltd}},
+  year         = {2026},
+  howpublished = {Hugging Face dataset, https://huggingface.co/datasets/csoai/oss-model-census},
+  note         = {Corrections: https://councilof.ai/api/corrections}
+}
+```
+
+Licence: CC0-1.0. Attribution is appreciated, not required.
+
+## Corrections and verification
+
+- Corrections ledger (signed): https://councilof.ai/api/corrections. Corrections to CSOAI's published records are logged there with what changed and when.
+- Verify a signed record yourself, free and without an account: https://councilof.ai/gspc-verify/ (step by step: https://councilof.ai/signed/HOW-TO-VERIFY.md).
+- Conformance kit for signed-receipts/v1, with test vectors for implementers: https://councilof.ai/spec/signed-receipts/v1/conformance/
+<!-- csoai-cite-v1:end -->