> For the complete documentation index, see [llms.txt](https://docs.teranode.group/nchain-event/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.teranode.group/nchain-event/independent-records/functional-description/write-record.md).

# Write Record

The Write Record operation enables you to write your own data records to the blockchain. The records can contain any arbitrary data that you want to be registered on the blockchain. The records can subsequently be read and verified so that you have proof of them being written to the blockchain in the first place.

Write Record returns the location of the record on the blockchain.

The record creator can publish the location of the record or distribute it to interested parties. They will be able to read or verify the record themselves. They can do this either by using nChain Event or by using third-party tools such as WhatsOnChain.

<figure><img src="/files/qGKVkQXoOlAyPvEb5FPK" alt="" width="375"><figcaption></figcaption></figure>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.teranode.group/nchain-event/independent-records/functional-description/write-record.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.