Re: [Platypuswiki-users] Re: [platypus] Unique identifier for a statement...

[Laurian G. <la...@gm...>]

On Wed, 22 Sep 2004 14:01:03 +0200, Stefano Campanini
<cam...@ya...> wrote:
> Laurian Gridinoc wrote:
> 
> >I always thought at this sha1 result as an URI, I would use the
> >already used format of identification of resources by sha1 content sum
> >used in P2P software:
> >
> >urn:sha1:XSQCZ3UK3PPW6Y6HOVLTIX2QFMZ3TFFB
> >----------------^ base32 of sha1 sum of the content - in our case of
> >the n-triple
> >
> >I using for base32: com.bitzi.util.Base32:
> >URI urn = new URI("urn", "sha1:" + Base32.encode(sha1digest), null);
> >
> >You proposed base64, I would go for base32, theoretically we would be
> >able to identify (in the future) individual RDF statements over P2P
> >networks :)
> >
> >
> Hi Laurian,
> 
> Where I can find an up-to-date copy of the com.bitzi.util.Base32 class ?
> I found it, but in the context of other projects. I'd like to get the
> original source.
> It is better to find a LGPL o more free licensed code. In this manner,
> in the future,  we can change to" a more free open source" Platypus license.
> 
> Thanks in advance.
> Stefano
> 

It is in public domain, I'm digging now for the original... 
http://bitzi.com/developer/code
The javacode is derrived from bitcollider which is in public domain:
http://sourceforge.net/projects/bitcollider
and you have the java version in CVS
http://cvs.sourceforge.net/viewcvs.py/bitcollider/jbitprint/src/com/bitzi/util/Base32.java?rev=1.1&view=auto
labeled public domain

Cheers,
-- 
Laurian Gridinoc
Chief Developer
GRAPEFRUIT DESIGN
www.gd.ro