<p>It refers to an occurrence in October 2011 when someone sent a lot of bitcoins to an incorrect public address: <a href="https://bitcointalk.org/index.php?topic=50206" rel="nofollow">someone fucked up and lost ALOT of money</a> . Casascius stated that he thinks it was done by Luke-Jr's Eligius mining pool: <a href="https://bitcointalk.org/index.php?topic=50206.msg598836#msg598836" rel="nofollow">Re: someone fucked up and lost ALOT of money</a></p>

<blockquote>
  <p>The way I understand it, these transactions were nonstandard enough
  that normal miners and clients would already refuse to relay or
  process them (but will accept them in a mined block). And that the
  only way these got into a block was that he teamed up with Luke-Jr's
  Eligius mining pool which has been modified to explicitly allow these
  nonstandard transactions for a fee (or other negotiated arrangement).</p>
</blockquote>

<p>Earlier from the same thread, <a href="https://bitcointalk.org/index.php?topic=50206.msg598227#msg598227" rel="nofollow">Re: someone fucked up and lost ALOT of money</a>: </p>

<blockquote>
  <p>Maybe this helps. It seems MtGox made a mistake somewhere.</p>
  
  <blockquote>
    <p>MagicalTux: that's a problem, but not the worst problem we ever faced</p>
    
    <p>MagicalTux: all the broken withdraws have been re-issued</p>
    
    <p>MagicalTux: just spent one week of BTC-only income</p>
  </blockquote>
</blockquote>

CC BY-SA 3.0
2012-01-16T05:29:31.207Z
Since only MtGox holds the private keys for their wallets, it is impossible for it to have been "done" by Eligius.  MtGox admits to having formed the erroneous transaction themselves.  Eligius cannot mine a transaction unless it was formed by the person holding the private keys for the outputs involved.
eldentyrell
CC BY-SA 3.0
2012-01-16T06:22:21.770Z
@eldentyrell: Of course mtgox messed up. But this mess up resulted in nonstandard transactions, and if Eligius (or whoever included them in a block) had rejected them (which may or may not have been the right thing to do), mtgox wouldn't have lost the coins.
Meni Rosenfeld
CC BY-SA 3.0
2012-01-15T19:11:21.210Z
2012-01-16T06:25:01.703Z
2012-01-16T06:25:01.703Z
Serith
<p><a href="https://bitcointalk.org/index.php?topic=58579.msg690179#msg690179" rel="nofollow noreferrer">From the forum</a>:</p>
<blockquote>
<p>Eligius already will accept any transaction, &quot;standard&quot; or not,
without bias.</p>
<p>...</p>
<p>Indeed, and Eligius' willingness to do so indirectly cost MTGOX many
thousands of bitcoins when a software bug caused them to send some
weird transactions that Eligius mined.</p>
</blockquote>
<p>Can anyone provide a reference that explain this incident? When did it occur?</p>

CC BY-SA 3.0
2012-01-16T05:31:00.660Z
Good heavens, this is like blaming Linus Torvalds because you deleted all the data on your Linux machine with "rm -rf".  Have you no clue how bitcoin works?
eldentyrell
CC BY-SA 3.0
2012-01-16T06:06:35.033Z
Yeah, Mt Gox lost the Bitcoins because they issued transactions that spent the Bitcoins but had outputs nobody could claim. The spec is clear that a miner's sole responsibility is to make sure the transactions properly claim their inputs. In general, there is no way to tell if the outputs are claimable.
David Schwartz
CC BY-SA 3.0
2012-01-16T07:06:53.617Z
@eldentyrell - the title is a direct quote that I'm inquiring about. A legitimate answer would be "it is Mt. Gox's fault, not Eligius'". I have reverted your edit, please don't redo it.
ripper234
CC BY-SA 3.0
2012-01-16T08:03:25.337Z
And there he goes trying to revert my revert, claiming that his original edit was an "admin-approved edit". Lovely.
ripper234
CC BY-SA 3.0
2012-01-16T09:10:27.563Z
@eldentyrell - thanks for putting this on Meta and **not linking to it from here**. Luckily I picked today to open Meta. http://meta.bitcoin.stackexchange.com/questions/228/can-we-establish-some-sort-of-policy-about-slander
ripper234
<mtgox>
When/How did Eligius "indirectly cost MTGOX many thousands of bitcoins"?
ripper234
# When/How did Eligius "indirectly cost MTGOX many thousands of bitcoins"?

(Asked by: username_0 on 2012-01-15)

[From the forum](https://bitcointalk.org/index.php?topic=58579.msg690179#msg690179):

> Eligius already will accept any transaction, "standard" or not,
> without bias.
>
> ...
>
> Indeed, and Eligius' willingness to do so indirectly cost MTGOX many
> thousands of bitcoins when a software bug caused them to send some
> weird transactions that Eligius mined.

Can anyone provide a reference that explain this incident? When did it occur?

**Tags:** mtgox

> **Comments:**
> **username_1**: Good heavens, this is like blaming Linus Torvalds because you deleted all the data on your Linux machine with "rm -rf".  Have you no clue how bitcoin works?  
> **username_2**: Yeah, Mt Gox lost the Bitcoins because they issued transactions that spent the Bitcoins but had outputs nobody could claim. The spec is clear that a miner's sole responsibility is to make sure the transactions properly claim their inputs. In general, there is no way to tell if the outputs are claimable.  
> **username_0**: @username_1 - the title is a direct quote that I'm inquiring about. A legitimate answer would be "it is Mt. Gox's fault, not Eligius'". I have reverted your edit, please don't redo it.  
> **username_0**: And there he goes trying to revert my revert, claiming that his original edit was an "admin-approved edit". Lovely.  
> **username_0**: @username_1 - thanks for putting this on Meta and **not linking to it from here**. Luckily I picked today to open Meta. http://meta.bitcoin.stackexchange.com/questions/228/can-we-establish-some-sort-of-policy-about-slander  

---

## 1 answers

### Answer by username_3 on 2012-01-15. Score: 4 | Accepted answer

It refers to an occurrence in October 2011 when someone sent a lot of bitcoins to an incorrect public address: [someone fucked up and lost ALOT of money](https://bitcointalk.org/index.php?topic=50206) . Casascius stated that he thinks it was done by Luke-Jr's Eligius mining pool: [Re: someone fucked up and lost ALOT of money](https://bitcointalk.org/index.php?topic=50206.msg598836#msg598836)

> The way I understand it, these transactions were nonstandard enough
> that normal miners and clients would already refuse to relay or
> process them (but will accept them in a mined block). And that the
> only way these got into a block was that he teamed up with Luke-Jr's
> Eligius mining pool which has been modified to explicitly allow these
> nonstandard transactions for a fee (or other negotiated arrangement).

Earlier from the same thread, [Re: someone fucked up and lost ALOT of money](https://bitcointalk.org/index.php?topic=50206.msg598227#msg598227):

> Maybe this helps. It seems MtGox made a mistake somewhere.
>
> > MagicalTux: that's a problem, but not the worst problem we ever faced
> >
> > MagicalTux: all the broken withdraws have been re-issued
> >
> > MagicalTux: just spent one week of BTC-only income

> **Comments:**
> **username_1**: Since only MtGox holds the private keys for their wallets, it is impossible for it to have been "done" by Eligius.  MtGox admits to having formed the erroneous transaction themselves.  Eligius cannot mine a transaction unless it was formed by the person holding the private keys for the outputs involved.  
> **username_4**: @username_1: Of course mtgox messed up. But this mess up resulted in nonstandard transactions, and if Eligius (or whoever included them in a block) had rejected them (which may or may not have been the right thing to do), mtgox wouldn't have lost the coins.  

---

