Spine
Tamper-Evident Audit Backbone
Transform application events into cryptographically verifiable evidence. Built for organizations where audit trail integrity is a regulatory requirement.
The Problem Spine Solves
Traditional logs are mutable, unsigned, and unverifiable. When a regulator or forensic investigator asks "prove this record hasn't been tampered with," most systems cannot provide cryptographic proof. Spine creates evidence that stands up to scrutiny.
Core Guarantees
What Spine provides that traditional logging cannot.
Immutability
Append-only WAL with hash chaining. Every entry links to the previous—modifications break the chain.
Authenticity
Ed25519 digital signatures on sealed batches prove who created the records and when.
Verifiability
Independent CLI validates the entire chain without trusting the running system.
Non-Repudiation
Cryptographic proof of event sequence. Records cannot be denied or disputed.
Architecture
How events flow through Spine to become forensic evidence.
Event Ingest
Events enter via REST API. Each event is validated, timestamped with nanosecond precision, and assigned a monotonic sequence number.
Pipeline & Sealing
Events are hashed with BLAKE3 and linked to the previous entry. Batches are sealed with Ed25519 signatures and Merkle roots for efficient verification.
Independent Verification
The verification CLI reads the raw data files and cryptographically validates every hash and signature—without connecting to Spine runtime.
Technical Specifications
Cryptography
- BLAKE3 hash function
- Ed25519 signatures
- Merkle tree batches
- Genesis block config
Performance
- 100k+ events/sec
- Sub-ms append latency
- Configurable fsync
- Checkpoint recovery
Deployment
- Single Rust binary
- ~15MB footprint
- Docker / K8s ready
- 2GB RAM minimum
Monitoring
- Real-time dashboard
- WebSocket streaming
- Anomaly detection
- Chain integrity alerts
Independent Verification
The verification CLI requires no access to Spine runtime. It validates the cryptographic chain independently.
$ spine-verify ./audit-data/ --verbose Spine Verification Tool v1.0 ══════════════════════════════════════════════════ Loading genesis block... Hash Algorithm: BLAKE3 Signature Algo: Ed25519 Public Key: 0x7a2b...f9c1 Scanning segments... Segments found: 1,247 Total events: 2,341,892 Sealed batches: 4,683 Verifying hash chain... ✓ All 2,341,892 entries linked correctly Verifying batch signatures... ✓ 4,683/4,683 signatures valid Verifying Merkle roots... ✓ All batch roots match computed values ══════════════════════════════════════════════════ ✓ VERIFICATION PASSED Chain integrity: INTACT Tampering detected: NONE ══════════════════════════════════════════════════
Integration
Send events to Spine via REST API. Minimal code changes required.
// Example: Submit an audit event
POST /api/v1/events HTTP/1.1
Content-Type: application/json
{
"event_type": "user.login",
"source": "auth-service",
"payload": {
"user_id": "usr_12345",
"ip_address": "10.0.0.1",
"method": "oauth2"
}
}REST API
Direct HTTP integration for any language or platform
Sidecar Mode
Deploy alongside services to capture events transparently
Log Forwarding
Ingest from existing logging systems (syslog, fluentd)
Proof of Concept
See Spine in action in your environment. No long-term commitment.
What's Included
- Integration with one event source
- Basic anomaly rules configured
- Dashboard deployment
- Verification workflow demo
- Integration documentation
Details
Ready to see Spine in action?
Let's discuss how Spine can fit into your compliance infrastructure.
Request a PoC