The 8 Bands (public overview)

#	Band Name	Role in the stack
1	Exhibition & Catalog CMS	Authoring & metadata (internal)
2	Marketplace & Payments	Storefront & royalties (internal)
3	Discovery & Content APIs	Read‑only endpoints exposed publicly
4	Presentation Apps	Web, mobile, CLI
5	Display Protocol	Open DP‑1 spec
6	Runtime / OS	FF OS (open source)
7	Devices & Hardware	Schematics, BOM, enclosure CAD
8	Ownership & Identity	Smart contracts & passkeys

Full spec and deep‑dives for Bands 5‑7 are public; other bands are summarized until we’re ready to open them.