Obtaining Solaris 10 patches

I have a Solaris 10 server. I've been trying to find from where I can download patches/updates.

The specific bug I'm running into (http://bugs.opensolaris.org/view_bug.do?bug_id=6551484) is reportedly fixed, according to that report:

Commit to Fix   s10u4_12
Fixed In    s10u4_12
Release Fixed    solaris_10u4(s10u4_12) , solaris_nevada(snv_70)

So far, all the potential Solaris patch download sites that Google returns all redirect to the My Oracle Support portal. I signed up for that, but now I need an "Oracle Support Identifier".

According to the FAQ:

After you log in with your SSO account, you must
register your Oracle Customer Support Identifiers (Support IDs) or your
Sun Contract Number. Most customers have only one Support ID. Your
Support ID is included in the welcome letter sent from Oracle. This is a
number similar to 3434354 that defines for Oracle the products you have
licensed for support. After you have registered your Support IDs, you
must be approved by the Customer User Administrator (CUA) for your
organization.

There is no paperwork, I have a SPARC machine with Solaris 10 installed on it. Am I out of luck regarding getting it updated?