Org and Service Instance guids are generated by the Cloud Controller. It
simply uses the SecureRandom.uuid ruby method:
http://docs.ruby-lang.org/en/2.2.0/SecureRandom.html#method-c-uuid

SecureRandom.uuid implements RFC 4122 and generates guids randomly. The
guids for orgs are guaranteed to be unique for a single deployment, and
mathematically incredibly likely to be unique across all deployments.

Joseph
CF Release Integration Team

On Fri, Oct 9, 2015 at 2:51 PM, Jean-Sebastien Delfino <jsdelfino(a)gmail.com>
wrote:

Hi all,

Could somebody from the CF team point me to the CF code that generates org
and service instance guids?

Are the generated guids globally unique across multiple
deployments/instances of CF? or only unique within a single instance of CF?

Thanks!

- Jean-Sebastien