> For the complete documentation index, see [llms.txt](https://docs.bloxroute.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bloxroute.com/solana/trader-api/api-endpoints/core-endpoints/trace.md).

# trace

This endpoint provides details about when a transaction was received by our systems, when it was released, and whether it was delayed (including the number of slots delayed).

{% hint style="warning" %}
Note: This endpoint is available exclusively to whitelisted customers only.
{% endhint %}

### Request:

#### Method:

`GET ./api/v2/system/trace`

#### Parameters:

<table><thead><tr><th width="179.32569366693275">Parameter</th><th width="139.23125339579434">Type</th><th>Description</th></tr></thead><tbody><tr><td><code>signature</code></td><td>string</td><td>Signature of a submitted transaction.</td></tr></tbody></table>

#### Request example:

{% tabs %}
{% tab title="HTTP" %}

```bash
curl --header "Authorization: $AUTH_HEADER" \
'http://ny.solana.dex.blxrbdn.com/api/v2/system/trace?signature=...'
```

{% endtab %}
{% endtabs %}

### Response:

#### Fields:

<table><thead><tr><th width="206.12060301507535">Fields</th><th width="164.90911803582708">Type</th><th>Description</th></tr></thead><tbody><tr><td>signature</td><td>string</td><td>The target transaction signature.</td></tr><tr><td>firstReceivedTime</td><td>google.protobuf.Timestamp</td><td>The timestamp when the Trader API backend first received the transaction.</td></tr><tr><td>firstReleasedTime</td><td>google.protobuf.Timestamp</td><td>The timestamp when the Trader API backend first released the transaction.</td></tr><tr><td>firstReceivedSlot</td><td>int64</td><td>The slot number when the Trader API backend first received the transaction.</td></tr><tr><td>firstReleasedSlot</td><td>int64</td><td>The slot number when the Trader API backend first released the transaction.</td></tr><tr><td>firstReceivedRegion</td><td>string</td><td>The first region which received the transaction.</td></tr><tr><td>firstReleasedRegion</td><td>string</td><td>The first region which released the transaction.</td></tr><tr><td>delayed</td><td>boolean</td><td>Whether the transaction propagation was delayed due to malicious leader detection. Transaction delay will only be affected when <code>submitProtection</code> is set to <code>SP_MEDIUM</code> or <code>SP_HIGH</code>.</td></tr><tr><td>delayedSlots</td><td>int64</td><td>Number of slots delayed.</td></tr></tbody></table>

Response Example:

{% tabs %}
{% tab title="JSON" %}

```json
{
   "signature": "K2UvcQkB5o2...Xvhi8kakUKiroP",
   "firstReceivedTime": "2025-08-28T07:41:31.805125000",
   "firstReleasedTime": "2025-08-28T07:41:31.811762000",
   "firstReceivedSlot": "363028450",
   "firstReleasedSlot": "363028450",
   "firstReceivedRegion": "NY",
   "firstReleasedRegion": "NY",
   "delayed": false,
   "delayedSlots": "0"
}
```

{% endtab %}
{% endtabs %}


---

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