Every call has a signed receipt (Ed25519, hash-chained). Export to S3, WORM, or your SIEM.
| Receipt | Time | Key | Model | PII | Region | Status |
|---|---|---|---|---|---|---|
rcp_8A2-01 | 12:48:01 | vk_prod_chatbot | mistral-large | 12 | EU-WEST-3 | signed |
rcp_8A2-02 | 12:47:58 | vk_rag_docs | gpt-4o-mini | 0 | EU-FRANCE | signed |
rcp_8A2-03 | 12:47:55 | vk_exp_marie | — | — | — | blocked 403 non-EU |
rcp_8A2-04 | 12:47:54 | vk_prod_chatbot | mistral-large | 3 | EU-WEST-3 | signed |
rcp_8A2-05 | 12:47:51 | vk_eng_default | llama-3-70b | 7 | EU-WEST-1 | signed |
$ euronium audit verify --from 2026-06-01 --to 2026-06-13 ✓ 412,318 receipts ✓ chain intact (no gaps, no rewrites) ✓ signing key euronium-prod-2026-06 valid