BSIP: <GXIP number>
Title: <GXIP title>
Authors: <list of authors' real names and optionally, email addrs>
Status: [ Draft | Accepted | Installed | Withdrawn | Deferred | Rejected | Superseded ]
Type: [ Informational | Protocol ]
Created: <date created on, in ISO 8601 (yyyy-mm-dd) format>
Discussion: <url>
Replaces: <GXIP number> (optional)
Superseded-By: <GXIP number> (optional)