Architecture
QUORUM is engineered for deterministic execution within high-throughput institutional environments. Our architecture prioritizes low-latency signal arbitration and immutable forensic continuity.
01 // Decision Pipeline
02 // Data Ingestion Model
QUORUM ingests multi-modal data streams through asynchronous edge-adapters. Every event is normalized into a unified schema before being presented to the analysis plane.
Ingestion Verticals
03 // State Transition Model
The system maintains a strictly stateful view of every entity. State transitions are governed by the consensus engine, ensuring that every score update is the result of a verified logic change.
Transition Logic
04 // Decision Graph
Flow Orchestration
Unlike 'Black Box' models, QUORUM's decision graph is a transparent, DAG-based flow. Every node in the graph represents a specific evaluation step—from whitelist lookup to adversarial stress testing.
05 // Latency & Execution Guarantees
Execution SLA
Maximum turnaround for synchronous enforcement actions.
Uptime Guarantee
Achieved through multi-region, air-gapped node clusters.
Ingestion Latency
Time to capture and normalize event data at the edge.
06 // Audit Logging Structure
Immutable Decision Ledger
Every decision trace is serialized into an append-only WORM (Write Once Read Many) ledger. Each entry is cryptographically signed by the enforcing node and contains the full lineage of signals used for the verdict. KZG polynomial proofs provide O(1) inclusion verification — any party can confirm an audit entry's presence in two pairing operations against a 48-byte G1 commitment.
Audit verdicts are signed via FROST(Ed25519) threshold protocol: no single signing key can forge a verdict. The institution holds co-signing authority, meaning the audit ledger is under joint cryptographic custody.
Event Lineage
Signal path from ingestion to enforcement, KZG-committed.
Reason Attribution
Causal counterfactual certificate — HSM-signed at decision time.
Threshold Attestation
FROST(Ed25519) (t,n) co-signature — institution holds partial key.
Privacy Certificate
Rényi DP moments accountant — HSM-signed ε/δ guarantee artifact.
07 // Cryptographic Trust Stack
Privacy-Preserving Architecture
QUORUM's federated learning layer uses pairwise X25519 ECDH masks that cancel at the aggregation server. The server computes only the weighted gradient sum — individual institution gradients are mathematically irrecoverable. Institutions apply mandatory local differential privacy (clip + noise) before submission; the server verifies noise calibration but never processes raw gradients.
Sanctions screening uses a Ristretto255 VOPRF (Private Information Retrieval). The screening service learns only that some entity was checked — the queried name does not appear in cleartext at the screening endpoint.
08 // Architecture Depth
Six deep-reference pages covering the specific infrastructure layers where QUORUM's integrity guarantees are defined. Each page documents the mechanisms, protocols, and invariants that underpin the platform's operational model.
Rule precedence model, approval workflow (DRAFT → SHADOW → PRODUCTION), override hierarchy, and consensus requirements by verdict type.
Five-layer continuity chain: Signal Commitment → Decision Trace → KZG Proof → Nova IVC → RFC 3161. Evidentiary replay protocol and chain integrity properties.
Nine-stage pipeline with latency budgets, session isolation model, concurrency architecture, and failure/degradation handling.
Shadow mode entry criteria, staged promotion (10% → 50% → 100%), governed rollback, rule lineage, and adversarial protocol validation.
Three deployment topologies, data sovereignty guarantees, cryptographic key custody, air-gap operations, and deployment integrity verification.
KZG commitment protocol, Nova IVC accumulator, RFC 3161 timestamp anchoring, FROST co-signature, and external auditor verification guide.
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