<p>You can find the documentation for that call, such as it is, <a href="https://blockchain.info/api/blockchain_api" rel="nofollow noreferrer">here</a>. It's not very helpful.</p>

<p>I can give you a few tips, though.</p>

<ul>
<li><code>n</code> is the vout of the input. A vout plus a txid unambiguously specify a transaction output, and are collectively known as an outpoint. <a href="https://bitcoin.org/en/glossary/outpoint" rel="nofollow noreferrer">More</a>.</li>
<li><code>tx_index</code> is a field used by blockchain.info, and has no meaning outside of blockchain.info's api.</li>
<li>No idea what <code>type</code> means. Looking at a few transactions at random, it always seems to be zero.</li>
</ul>

CC BY-SA 3.0
2017-03-04T05:17:30.120Z
2017-03-04T05:17:30.120Z
Nick ODell
<p>Such as in this result: <a href="https://blockchain.info/rawtx/6b1c57d98a557b5f578c02f6c386ef049df5890ebddd01d286bf345f47c5cecc" rel="nofollow noreferrer">https://blockchain.info/rawtx/6b1c57d98a557b5f578c02f6c386ef049df5890ebddd01d286bf345f47c5cecc</a></p>

<p>I don't know what ex. the fields "tx_index", "type", "n" mean.</p>

<blockchain.info>
Where can I find the explanation of each field of the result returned by the api of blockchain.info?
Aqqqq
# Where can I find the explanation of each field of the result returned by the api of blockchain.info?

(Asked by: username_0 on 2017-03-03)

Such as in this result: <https://blockchain.info/rawtx/6b1c57d98a557b5f578c02f6c386ef049df5890ebddd01d286bf345f47c5cecc>

I don't know what ex. the fields "tx\_index", "type", "n" mean.

**Tags:** blockchain.info


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## 1 answers

### Answer by username_1 on 2017-03-04. Score: 1

You can find the documentation for that call, such as it is, [here](https://blockchain.info/api/blockchain_api). It's not very helpful.

I can give you a few tips, though.

* `n` is the vout of the input. A vout plus a txid unambiguously specify a transaction output, and are collectively known as an outpoint. [More](https://bitcoin.org/en/glossary/outpoint).
* `tx_index` is a field used by blockchain.info, and has no meaning outside of blockchain.info's api.
* No idea what `type` means. Looking at a few transactions at random, it always seems to be zero.


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