Proof once. Use it anywhere.
Continuous evidence. Cryptographic proof. Vulnerability management. All on one signed engine.
See the full power of ProofLayerMap your authorization boundary in just a few clicks.
Discover cloud accounts, identity providers, endpoints, and Kubernetes clusters using credentials you already have. Assets are tagged, classified, and aligned to your inventory of record. Nothing about your environment is assumed.
Policies that execute deterministically — every time, everywhere.
Every policy is a smart contract. The scanner runs the contract against your asset, captures intent + contract + outcome in a signed envelope, and emits a replay hash that's a deterministic function of state. Same state, same hash, anywhere.
Real-time posture, with drift and reversion traceable to the hash.
The per-host posture event ledger captures every transition: drift, reversion (A→B→A), stable. Every event back-references the prior scan. The audit trail is recorded as it happens — not reconstructed at audit time.
Read-only oversight — by API, no console required.
The Continuous Monitoring Record is a read-only surface over the same signed evidence. An Authorizing Official, a SIEM or SOAR, a GRC platform — or an AI assistant given a scoped key — reads posture, findings, controls, per-asset history, and on-demand proof verification. What's real, in real time, with no edit access and no scan controls.
One evidence stream, two lenses: the operator console produces it, the CMR reads it. Nobody re-keys data into a separate system, and everyone verifies the same chain.
Take the evidence anywhere — OSCAL, JSON, or a webhook.
Stream the signed evidence directly into your GRC platform, SIEM, or system of record — as OSCAL or JSON, pulled on demand or pushed by webhook on every state change. ProofLayer produces the verifiable proof; your GRC tool consumes it. Same source, rebuilt from current evidence every time.
CVE detection on the same engine. KEV-prioritized. One scan, two frameworks.
ProofLayer treats CVE as a framework. A single scan satisfies both NIST 800-53 RA-5/SI-2 and CVE detection. CISA KEV findings surface to the top, sorted by CVSS and EPSS. Remediation decisions (patch / accept-risk / FP / mitigated) are evidence-grade and signed.
Pathfinder, coming next: the asset-relationship graph laid alongside this is the substrate Pathfinder reasons over — lighting up vulnerable assets and the lateral paths between them, every edge grounded in signed evidence.
Verifiability comes from the replay hash. The math doesn't need us.
The replay hash is a deterministic function of your asset's actual state. Anyone with the policy contract, the engine, and access to the target can run the reproducibility command and produce a byte-identical envelope. Same state, same hash, anywhere. The verifiability lives in the math, not in our infrastructure.
The engine that signs your proof is open source.
The deterministic ESP engine that evaluates your policies is published, version-pinned, and independently auditable. Sophisticated buyers deserve to understand how things work — not just trust the vendor's narrative.
Explore the ESP engine on GitHubReady to See ProofLayer in Your Environment?
Schedule a technical conversation. We'll get you a sandbox environment to evaluate ProofLayer against your authorization boundary.