Lucius - Full blood (was The [Real] Importance of being Draco Malfoy)

[onnanokata]

No: HPFGUIDX 114414

kmc challenges :)
give me some specific Cannon to support Draco as the HBP.  Is 
there cannon of Lucius lying?  Lucius may not tell all that he knows 
but I don't remember anywhere in the books when Lucius lied.  I am 
not saying he is not evil or does things "out of the goodness of his 
heart" but can you show an actual lie to support your theory.  
  
Sirius is one of the characters who states that Lucius is full-
blood.  Please show me an occasion when Siruis believed what he was 
saying but was wrong.  I agree it would be a great story line but it 
just is not supported by cannon.
 
samnanya
That's easy on both counts -- how about
I am not a death eater - Lucius Malfoy
 
even the Dark Lord knows that Lucius is slithery ... and the Dark 
Lord always knows

Dharma replies:

Lucius agrees with Dumbledore that it is very fortunate that the 
diary was destroyed (CoS chapter 18).  We know that this is not a 
true sentiment because, he gave Ginny Riddle's diary and told Draco 
that the last time the chamber was opened, someone died.  If he had 
really been concerned about the potential consequences for the 
students, would he have given Jenny the diary? 

Sirius and Remus admit that they each thought the other was that spy, 
and each asked for each other's forgiveness.  Sirius also admits that 
he never even considered the idea that it could be Pettigrew.  He was 
wrong on both counts.  That is canon.

There is plenty of canon to suggest that Wizards lie, or that they 
don't always know what is true.  If Sirius always knew what was true, 
would he have ended up in Azkaban?  If Malfoy never lied, how is it 
that he stayed out of Azkaban?  Snape lies to Umbridge. Dumbledore 
lies to Fudge, and the list could go on.  Even if Lucius never told a 
lie, which is not the case, there would still be canon to support the 
idea that he could or would.  There are many instances of Witches and 
Wizards not telling or knowing the truth throughout the series.

On the concept of canon support for Draco as the HBP
 There has been 
no canon argument made in this thread about the identity of the HBP 
that is completely irrefutable one way or the other.  Canon can work 
for or against most arguments in this case.  Unless we can *prove* 
that everyone is being truthful and is fully aware of his or her 
heritage, then the idea of Malfoy's pureblood status is arguable.

Where is the *irrefutable* proof that the truth about all of the 
Malfoys' ancestries has been revealed?  Until this proof is offered 
this tread will become completely redundant, in my opinion.  In that 
spirit, this will be my last post on this topic until unarguable 
proof is offered.  Perhaps someone with new information will be able 
to move the conversation forward?