<p>Do you need a user interface or to find them via API? We do not have UI at the moment for this (we will very soon) but you can definitely use our <a href="https://support.biteasy.com/kb/rest-api" rel="nofollow">REST API</a> to get them.</p>

<p>If the API is what you need then you can just use the following API call to filter ORPHANED blocks only. </p>

<blockquote>
  <p><a href="https://api.biteasy.com/blockchain/v1/blocks?type=ORPHANED" rel="nofollow">https://api.biteasy.com/blockchain/v1/blocks?type=ORPHANED</a></p>
</blockquote>

<p>If the transactions weren't included in the main chain then they will either be DEAD or PENDING and you can fetch them with the following API call:</p>

<blockquote>
  <p><a href="https://api.biteasy.com/blockchain/v1/transactions?confidence=DEAD" rel="nofollow">https://api.biteasy.com/blockchain/v1/transactions?confidence=DEAD</a></p>
</blockquote>

<p>and </p>

<blockquote>
  <p><a href="https://api.biteasy.com/blockchain/v1/transactions?confidence=PENDING" rel="nofollow">https://api.biteasy.com/blockchain/v1/transactions?confidence=PENDING</a></p>
</blockquote>

<p>Check out the link to our documentation and also you can use our testing tool which you can find here <a href="https://www.biteasy.com/developers/sandbox" rel="nofollow">https://www.biteasy.com/developers/sandbox</a></p>

CC BY-SA 3.0
2014-06-04T22:15:56.073Z
2014-06-23T19:09:03.900Z
2014-06-23T19:09:03.900Z
Biteasy.com
<p>In this: <a href="http://arxiv.org/pdf/1403.6676.pdf" rel="nofollow">http://arxiv.org/pdf/1403.6676.pdf</a> paper Christian Decker and Roger Wattenhofer describe their use of a system to monitor the bitcoin network for failed transactions.</p>

<p>Some tools are available on <a href="https://github.com/cdecker?tab=repositories" rel="nofollow">https://github.com/cdecker?tab=repositories</a> .</p>

<p>Though not a database by itself, these tools might be useful for building such a database.</p>

CC BY-SA 3.0
2014-06-05T07:05:01.773Z
Thank you. I already have a tool, which saves all transactions and all blocks received from my peers. Unfortunately, I have to keep it online and connected 24/7 what is quite difficult for me. And I have to choose well-connected nodes to connect ( https://blockchain.info/hub-nodes also is broken ). This tool sniffes current network activity, but first of all i am interested in "bitcoin archeology" - those transactions which were in past but not accesseble now through the blochchain
amaclin
CC BY-SA 3.0
2014-06-05T05:51:38.417Z
2014-06-05T05:51:38.417Z
Willem Hengeveld
<p>Is there database of orphaned blocks?</p>

<p><a href="https://blockchain.info/orphaned-blocks" rel="nofollow">https://blockchain.info/orphaned-blocks</a> does not work right now</p>

<p>Does anybody keep them?</p>

<p>Also I am looking for those transactions which were not included in blocks (non-standard, double-spends, not enough fees, etc)</p>

<transactions><blockchain><blockchain.info><block>
Is there database of orphaned blocks?
amaclin
# Is there database of orphaned blocks?

(Asked by: username_0 on 2014-06-02)

Is there database of orphaned blocks?

<https://blockchain.info/orphaned-blocks> does not work right now

Does anybody keep them?

Also I am looking for those transactions which were not included in blocks (non-standard, double-spends, not enough fees, etc)

**Tags:** transactions, blockchain, blockchain.info, block


---

## 2 answers

### Answer by username_1 on 2014-06-04. Score: 2 | Accepted answer

Do you need a user interface or to find them via API? We do not have UI at the moment for this (we will very soon) but you can definitely use our [REST API](https://support.username_1/kb/rest-api) to get them.

If the API is what you need then you can just use the following API call to filter ORPHANED blocks only.

> <https://api.username_1/blockchain/v1/blocks?type=ORPHANED>

If the transactions weren't included in the main chain then they will either be DEAD or PENDING and you can fetch them with the following API call:

> <https://api.username_1/blockchain/v1/transactions?confidence=DEAD>

and

> <https://api.username_1/blockchain/v1/transactions?confidence=PENDING>

Check out the link to our documentation and also you can use our testing tool which you can find here <https://www.username_1/developers/sandbox>


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### Answer by username_2 on 2014-06-05. Score: 1

In this: <http://arxiv.org/pdf/1403.6676.pdf> paper Christian Decker and Roger Wattenhofer describe their use of a system to monitor the bitcoin network for failed transactions.

Some tools are available on <https://github.com/cdecker?tab=repositories> .

Though not a database by itself, these tools might be useful for building such a database.

> **Comments:**
> **username_0**: Thank you. I already have a tool, which saves all transactions and all blocks received from my peers. Unfortunately, I have to keep it online and connected 24/7 what is quite difficult for me. And I have to choose well-connected nodes to connect ( https://blockchain.info/hub-nodes also is broken ). This tool sniffes current network activity, but first of all i am interested in "bitcoin archeology" - those transactions which were in past but not accesseble now through the blochchain  

---

