Broader market map: government APIs, identity registries, cross-border rules and always-on market rails all expose the same missing layer—turning source-backed facts into purpose-specific, auditable transaction inputs without pretending to replace the authoritative source or downstream regulated rail.
Mechanism and deck: the signals support participant-controlled data accounts, permissioned proof movement and transaction-record SDAs. The deck should become more concrete about what moves, who established it, how fresh it is, what the recipient may retain, and which external operator owns the authoritative record. Confidential source-architecture context was used as an internal alignment lens and omitted from this public-safe report.