The Fintech Builder · D30-F03-A01

Match evidence. Keep every unexplained row.

A conservative exact-reference matcher with complete source histories, atomic statement revisions and owner-asset signs. All records are synthetic.

Evidence scenarioCopied hypothetical revision reference

Speed

Exact pairs

Unmatched rows

Blocked reference buckets

Pair and exception decisions

Internal selected evidence

External selected evidence

Inspect every supplied source revision

The full history is validated before K or booking-date filtering. This audit includes unavailable and superseded versions.

Why this decision follows

Booking window [start,end)
Reference policy: Namespace + original printable ASCII bytes. No trimming, case folding or zero removal.
Internal / external signed sums
Internal − external
Withdrawal diagnostics
Out-of-window active rows
One-row-once allocation

The owner's bank asset increases on inflow and decreases on outflow. A reversal already has its direction; never flip it again.

A revision replaces statement evidence. A real financial reversal is another movement. Both original and reversal remain booked candidates.

EXACT_MATCH_COMPLETE means this proposal computation completed. Three pairs do not prove closing balances or authorize a journal.

The trusted host authenticates scope/heads and vetoes or reviews reuse of accepted or revised evidence across runs. This pure lab has no durable match registry.