When an auditor asks "reproduce this exact answer" six months later, you need more than (messages, model). You need the sampling parameters that were actually applied, the prompt template version, the tool set the model saw, and ideally the provider's backend fingerprint — because closed-source ...
Source: [Dev.to](https://dev.to/rinat_kozin_d0a2ef43e7824/redbroutellm-311-per-message-audit-fields-for-llm-compliance-replay-4mi1)