I've put much interest in the Bitzi project as soon as I discovered it.
 I have no doubt that this open project, if it does not become an
international standard over time, will inspire new ways of doing
things.

I created a very basic media indexing system (The Fiat Jam Archive:
http://membres.lycos.fr/fiatjamarchive/) to manage recordings of shows
we organize periodically, in order to be able to verify availability
and localize files among our increasing archive.

I intend to pour this information in a database soon, so it would be
updatable from anywhere.  I also planify to enable some sharing
features, so selected recordings would be easily available publicly.

Seeking around on the web for a way to generate the magnet: sha1 tag of
a file using PHP lead me almost nowhere.  I've found a sha1() function
[www.php.net/sha1]. But the PHP sha1() returns a 40-characters hash
string, whilst we need a 32-characters hash string.

If anyone could give me some indication on how to process a file's
bitprint in PHP, I'd be glad to share my results with the Bitzi
community.

Thanks for your interest in Bitzi & Bitpedia!

A PHP utility which wraps the Bitcollider utility to bitprint files and
create magnet links, by Bitzi's Mike Linksvayer, is available at the URL:

   http://gondwanaland.com/tmp/bitcollider-php/

It includes a PHP function, hex_to_base32($hex), which you could use
to convert SHA1 hex values from other functions (like PHP's sha1())
into RFC3548 Base32-encoding.

Hope this helps!

- Gordon @ Bitzi

Thanks for your interest!