any part signature

Hello *,

Is it a validity signature ship W3C XML Signature standards?

Original XML:
<msg>
Hello,world!
</msg>
<msg>
Hello,everybody!
</msg>


Signed XML:

<msg>
Hello,
<Signature Id="MsgSign1"...>
<SignedInfo>
...
<Reference URI="#AMsgSign""
Type="http://www.w3.org/2000/09/xmldsig#signatureProerties">
...
</Reference>
<SignedInfo>
...
<Object>
<SignatureProperties>
<SignatureProperty Id="AMsgSign" Target="#MsgSign1">
World
</SignatureProperties>
</Object>
</Signature>
!
</msg>
<msg>
Hello,everyBody!
</msg>



Many Thanks,
Amdrew