Deterministic projection
Same canonical inputs, configuration, build and time basis produce the same state.
DSE · BFIE
Financial state without duplicate math.
BFIE keeps transaction, account, obligation and evidentiary projections inside one deterministic engine boundary.
OVERVIEW
One calculation authority.
Consumers render BFIE output. They do not reimplement financial truth independently inside dashboards, CRMs or downstream products.
Evidence continuity
Observed bank records and business events remain distinguishable until reconciled.
Integer money math
Hardened calculations use integer minor units and explicit currency rules.
Consumer boundary
Downstream products consume projected state without becoming the source of truth.
CURRENT EVIDENCE
Hardened Rust runtime uses minor-unit integers; no floating-point financial arithmetic.
Explicit as_of UTC input keeps time-dependent state reproducible.
Duplicate IDs with conflicting payloads produce HOLD and exclusion rather than arbitrary winner selection.
Separate adapter preserves deterministic finance while receipting probabilistic external QPU observations.