A source is useful only when the claim stays within its scope. A comic page can establish a scene; a publisher listing can establish a format or credit; neither automatically establishes everything else.
Published narrative
The core evidence is the published BRZRKR comic series and the later published specials, collections, and The Book of Elsewhere. Pages cite the relevant issue, volume, or novel when describing events, characters, locations, objects, and continuity.
Official publication records
BOOM! Studios announcements and series records support publisher facts, creator credits, release announcements, and official descriptions. Penguin Random House BRZRKR listings support book-market contents, dates, ISBNs, formats, and dimensions when listed.
Screen announcements
The Netflix announcement is used for the publicly announced live-action and anime projects, their named participants, and the announcement date. Later status changes require later authoritative evidence.
Source notes on individual pages
Each long-form entry ends with its own references. Those notes are intentionally specific: they identify the publication, the relevant sequence or field, and the boundary of what the source supports.