> For the complete documentation index, see [llms.txt](https://docs.derupt.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.derupt.io/legacy/contracts-legacy/.derupt-feed.md).

# .derupt-feed

**The following function is only callable by .derupt-core-yyyymmdd:**

* log-send-message

{% hint style="info" %}
**About Messages**: log-send-message is only callable by the current .derupt-core-yyyymmdd contract.  \
\&#xNAN;*(To prove messages in a transparent order of operations, so that developers have consistent data for presentation across all potential user interfaces)*
{% endhint %}

{% hint style="info" %}
**About Replies:** log-send-message include Reply Messages as inferred by the inclusion of a `reply-to` transaction id argument.\
(The log-send-message function logs send-message calls received from core) \
(The core wraps replies functions as send-message function calls)
{% endhint %}