Fintech // Engineering10 min read
Deterministic State Machines in Fintech
Author
Ashish // Lead Architect
Revision
MARCH_2026_V1
Race conditions in financial ledgers aren't just bugs—they are financial liabilities. We explore how to build systems that produce the exact same output given the same input sequence.
01 // The Power of the Sequencer
Using a high-performance sequencer, we order all incoming transactions before they hit the execution engine, eliminating the need for expensive distributed locking.
"Order is the only thing that separates a ledger from a random collection of numbers."