Immutable Events.
Infinite Scale.

The Event Sourcing Platform Built for Audit-Ready Systems.

Cloud-native event sourcing with complete audit trails, bi-temporal indexing, and zero data loss. CNCF CloudEvents compliant. Scales to millions of events/sec.

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Powering audit-ready systems with complete traceability and infinite scale

Banking & Finance Healthcare Government

Complete Audit Trails.
Zero Data Loss.

Enterprise-grade event sourcing with SOX, HIPAA, and GDPR compliance built-in.

CloudEvents 1.0 Compliant

CNCF CloudEvents specification compliant for portable event data. JSON and binary content-types with extensible metadata.

Bi-Temporal Indexing

Query operational and effective time with microsecond precision. Complete audit trails with immutable event history.

WASI Components

WebAssembly System Interface compliant components for deterministic state computation. Sandboxed execution with resource limits.

Atomic Batches

ACID-compliant batch transactions with optimistic concurrency control. Linearizable consistency with compare-and-swap semantics.

Immutable Event Log

Append-only event storage with immutable history. 100% event durability with multi-region replication.

AWS Native Integration

DynamoDB for unlimited scale, SNS for event streaming, Lambda for serverless compute. 5,000+ events/sec per database.

example.ts 
// Define a State View with WebAssembly
                                                              export const orderView = defineStateView({
                                                              name: "order-status",
                                                              index: { stream: "orders/*" },
                                                              decide: (state, event) => {
                                                              switch (event.type) {
                                                              case "order.created":
                                                              return { ...state, status: "pending", items: event.data.items };
                                                              case "order.shipped":
                                                              return { ...state, status: "shipped", trackingId: event.data.trackingId };
                                                              default:
                                                              return state;
                                                              }
                                                              }
                                                              });

Distributed Architecture.
Unlimited Scale.

Multi-region active-active deployment with linearizable consistency. Query any point in operational or effective time with microsecond precision. Zero RPO/RTO with automatic failover and self-healing infrastructure.

Append-Only Storage

Immutable event log with 100% durability guarantee

WASI Components

Sandboxed WebAssembly execution with deterministic resource limits

Native Clients

JVM SDK with Kotlin/Java. gRPC and REST APIs for all platforms

AWS Integration

DynamoDB, SNS, Lambda. Auto-scaling from zero to millions of events/sec

CLIENT APPLICATIONS

Kotlin/Java SDK REST API gRPC

EVIDENTSOURCE PLATFORM

State Views State Changes

STORAGE ADAPTERS

In-Memory DynamoDB

Built for Regulated Industries.
Compliance by Design.

SOX, HIPAA, GDPR, and FedRAMP compliant architecture. Complete audit trails with immutable event history.

Banking & Finance

SOX-compliant transaction ledger with complete audit trails. Immutable record of all financial events.

  • SOX/FINRA Compliance
  • Complete Audit Trail
  • Zero Data Loss

Healthcare

HIPAA-compliant event storage with patient data versioning. Complete history of all medical records.

  • HIPAA Compliant
  • Bi-Temporal Queries
  • Encrypted at Rest

Government

FedRAMP-ready infrastructure with immutable audit logs. Complete event history for regulatory compliance.

  • FedRAMP Ready
  • Immutable Audit Logs
  • Multi-Region Backup
100%

Event Durability

5K+

Events/sec per DB

0

RPO/RTO

Start Building Audit-Ready Systems

Deploy EvidentSource on-premise or in your AWS account. Complete audit trails, zero data loss, unlimited scale.

Quick Start

Deploy locally with Docker in seconds

docker run -p 8080:8080 evidentsource/evident-db

Enterprise Support

SLA-backed support and custom deployment

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