EA-CORPORA-01 Seat 01 is the first corpus seating of the Crimson Hexagonal Archive's Ω build program, placing the four works of canonical Josephus — Antiquities, the Life, Against Apion, and the Jewish War — on alexanarch as verified, parsable primary text in Greek. The seating preserves Niese's edition via the Perseus Digital Library byte-for-byte, pinned to a specific source-repository commit, beside a normalized layer of 12,423 flat reference-tagged section lines suitable for alignment and search, with a source manifest recording repository, commit, edition, license, and normalization rule, and SHA-256 checksums over every file. Before commit, an automated collation gate verified three loci against the readings on which the program's Josephus papers were adjudicated — the queen's speechless fall at Antiquities 11.236, the re-fired eros at Bellum 1.444, and Saul's lost voice at Antiquities 6.337 — certifying that the texts tested and the texts hosted are the same letters. Alexanarch is the canonical seat; reading sites carry projections by reference under the work plan's projection rule. The seating pattern — pin, preserve, normalize, manifest, gate, mint — governs the seats that follow.