Architecture decision records

Each record states the decision and the reasoning behind it, so a reviewer can disagree with the reasoning rather than guess at it.

#	Decision	Status
0001	pathUSD is the settlement unit; any USD TIP-20 at the edges	Accepted
0002	The Tempo hub is enforced by the route planner	Accepted
0003	A 32-byte reference in each chain’s native memo, not an indexer	Accepted
0004	A compensating saga rather than two-phase commit	Accepted
0005	Privacy is a venue in the route graph, not a feature flag	Accepted
0006	Shielded vaults are FROST 2-of-3, rerandomized	Accepted
0007	Live Across first; simulation only as a labelled fallback	Accepted
0008	Gas, funding and deliveries are booked from what the chain shows	Accepted
0009	Customers hold the keys; Corridor signs through their KMS or MPC	Accepted
0010	USDC, USDT, PYUSD and EURC are first-class alongside pathUSD	Accepted
0011	A customer starts read-only; moving money is the second step	Accepted