Caelex Verity
Privacy-preserving compliance attestations for satellite operators. Cryptographically signed proof that regulatory thresholds are met — without exposing the underlying telemetry.
Ed25519
Digital Signatures
SHA-256
Hash Commitments
Signed Commitment
Attestation Model
The Problem
Regulators need proof. Operators cannot share the data that constitutes that proof. Verity resolves this: prove the fact without revealing the data.
Proof of debris mitigation compliance
Evidence of passivation thresholds met
Fuel reserve attestations for de-orbit
Collision avoidance manoeuver records
Exact fuel levels (competitive intelligence)
Orbital manoeuver parameters (ITAR/EAR)
Telemetry streams (proprietary sensor data)
Operational status of subsystems
How It Works
Four cryptographic steps transform sensitive operational data into independently verifiable compliance attestations.
Operator submits telemetry to Caelex. The compliance engine evaluates the measurement against the applicable regulatory threshold.
fuel_reserve: 47.2 kg
threshold: ≥ 10.0 kg
→ PASS
The raw value is SHA-256 hashed to create a cryptographic commitment. The hash binds Caelex to the true measurement without revealing it.
47.2 kg → a3f8c1…e7b2d4
Caelex signs the threshold assertion with Ed25519. The attestation contains the claim, the hash commitment, and the digital signature — never the raw value.
claim: "ABOVE threshold"
sig: Ed25519 ✓
Anyone can verify the attestation using Caelex’s public key. No login required. No API call. Fully offline-capable.
$ verity verify --attestation att.json
✓ Valid — signature verified
Capabilities
Verity is not a checkbox tool — it is a cryptographic attestation engine that produces independently verifiable compliance proof.
Every attestation is digitally signed with Ed25519 elliptic-curve cryptography. Tamper-evident, non-repudiable, and verifiable by any third party.
SHA-256 hash commitments bind Caelex to the true measurement value. The hash proves consistency without exposing the underlying data.
Operators choose which compliance facts to attest. Regulators see only the threshold assertion — never the raw telemetry, fuel levels, or orbital parameters.
Attestations are self-contained JSON documents. Verify with Caelex’s public key using any Ed25519 library — no API, no login, no network required.
Each attestation references specific EU Space Act articles, NIS2 requirements, or national space law provisions. Full traceability to enacted law.
Composite trust scores aggregate multiple attestations into a single compliance confidence metric. Weighted by recency, coverage, and cryptographic strength.
Ed25519 signatures. SHA-256 hash commitments. Zero-knowledge attestations. Verified by anyone, anywhere, offline.
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