Technical whitepaper
Architecture PDF
The Hostra Settlement Engine, in the level of detail your staff engineers will want before betting production money on it. Data model, journal format, lease protocol, failure semantics, benchmark methodology.
Hostra Settlement Engine — Architecture & Guarantees
PDF · 4.9 KB · Version 2026.07
Written for engineering review, not sales. No email gate.
What's inside
- Design goals and invariants
- Exactly-once settlement — idempotency protocol
- Deterministic recovery — journal + fold
- Append-only ledger — hash chain and Merkle roots
- Lease-based ownership — fenced tokens
- Retry orchestration — backoff, budgets, DLQ
- Commit protocol — request/response semantics
- Failure semantics — RTO / RPO per failure mode
- Multi-region topology and failover
- Audit trail and external verification
- Service level objectives