Show HN: LIBR tracing with source ledger rows and byte-exact PDF verification

This engineering note introduces a method for tracing financial ledger transactions using deterministic replay to ensure accuracy and auditability. It provides a technical framework for verifying account balances and transaction history through synthetic fixtures.
Why it matters
Deterministic tracing is essential for forensic accounting and financial software integrity, preventing errors in complex transaction state machines.
An engineering note on replaying ordered financial transactions to preserve balance dips, same-day assumptions, and non-replenishment behavior.
The content is a purely technical engineering document with no political or social bias.
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