DNA Archival Storage Cartridge — Design Blueprint: DNA as a Data-Storage Chip

DESIGN BLUEPRINT — SIMULATED, NOT MEASURED — NOT BUILT. Design blueprint derived from 'DNA as a Data-Storage Chip: A Full Architecture and Computed Performance Budget for an Archival Storage Device' (DOI: 10.5281/zenodo.24108890). Specifies a hybrid cartridge (25 x 25 x 1 mm, 10 mg dry DNA) storing data in 200 nt oligonucleotides (20 nt primer + 20 nt address + 140 nt payload + 20 nt primer), with 100 physical copies per distinct sequence, 35% error-correction overhead (Reed-Solomon 1.25 x inner 1.08), and 30x read coverage. Operational density 1.86 EB/g; mass-limited cartridge ceiling 18.57 PB but practical campaign fill only 2.04 TB (0.011% of ceiling); writes 12.1 h, reads 14.5 h (4.0 h best selective case); retention at zero energy; modelled array write cost about $98,271 per GB. Includes write/read process sequences, quality-control and acceptance checks, failure modes including all unverified load-bearing assumptions from the source, storage conditions, and explicit non-claims. Nothing synthesised, built, or tested.