Trust in
Every Entry
ICAO-aligned electronic pilot credentials for aviation. W3C Verifiable Credentials, offline verification, and tamper-evident logbook records.
ICAO
Aligned
Offline
Verification
Tamper-Evident
Logbook
The Status Quo
Fragmented Records,
Verification Delay.
Paper Fragility
Regulatory compliance still relies on manual entry and physical stamps. Records are subject to loss, damage, and falsification.
Unverifiable Licences
Pilot licences have no machine-verifiable chain of trust. Cross-border verification requires manual letters between authorities taking weeks.
Slow Hiring Verification
Pilot hour verification for airlines takes weeks of cross-referencing and manual authority checks before a new hire can begin line operations.
No Digital Trust Layer
Ramp checks rely on trust without cryptographic proof. There is no standardised mechanism for digital credential verification in real time.
Manual Hour Reporting
Every airline asks for different hour breakdowns - PIC night, cross-country, time per type, multi-engine IFR. Pilots spend hours manually calculating each combination from their logbook for every application. Then the airline has to independently verify what was self-reported. With HyperLog, the pilot grants access and the airline queries whatever breakdowns they need directly from verified data.
Two Layers of Trust
Credentials First.
Logbook Beneath.
Phase 1 delivers electronic pilot credentials using standard public key infrastructure - W3C Verifiable Credentials, ICAO-aligned, offline-verifiable without internet. Phase 2 adds the distributed logbook layer, creating the multi-party verified evidence base that makes credentials meaningful. Together: a complete credential lifecycle.
The Credential Layer
Authority-Issued • W3C Verifiable Credentials • Phase 1
Licences, medicals, and ratings are issued by regulatory authorities as digitally signed Verifiable Credentials. They live on the pilot's device, not on a central server, giving the pilot full control over who can access their credentials and for how long. Access can be granted on a time-limited, revocable basis for airline hiring or regulatory checks. This is the layer aligned with ICAO Amendment 178 to Annex 1.
Pilot Licence
Issued by CAA/NAA. Signed with the authority's private key. Verifiable offline by any ramp inspector worldwide using cached issuer public keys.
Medical Certificate
Signed by an Approved Aviation Medical Examiner. Automated expiry tracking. Airlines see validity status without clinical details.
Ratings & Type Ratings
Issued by ATOs and CAAs after proficiency checks. Each rating is a linked credential with revalidation tracking.
Offline verification: Ramp inspectors cache public keys for all participating NAAs on their device. When a pilot presents a credential via QR or NFC, the inspector verifies the issuer's signature locally - no internet required. ICAO Annex 1 section 5.3.5.2 makes this a mandatory Standard for any EPL-issuing State.
The Evidence Layer
Permissioned Ledger • Phase 2 Design
Flight records are signed by the pilot and progressively verified by independent sources. Trust is earned, not claimed. Each source that confirms a flight adds confidence. The logbook layer is designed to record entry hashes on a permissioned distributed ledger with a permanent, tamper-evident audit trail. Records can be amended, but the full history of every change is preserved - original entries and amendments are all permanently auditable.
Verification Spectrum
Pilot Signed
Cryptographic signature via device biometrics. The pilot's word, backed by PKI.
Crew Corroborated
Other crew members independently log the same flight via QR code sharing.
ADS-B Tracked
Flightradar24 and FlightAware via Aireon satellite ADS-B on the Iridium constellation confirm route, times, and altitude.
Airline OPS Verified
Airline scheduling system confirms the crew were rostered on this flight.
Not every flight achieves all four sources. The number of verification sources depends on the type of operation, crew composition, and available tracking infrastructure. The system is transparent about what has been verified for each individual flight.
The logbook is the evidence base that supports credential issuance. When a pilot applies for a licence, the CAA can verify their flight hours directly from the logbook - with the full verification chain showing which flights were crew-corroborated, ADS-B tracked, and airline-confirmed. A credential is only as trustworthy as the evidence beneath it. Both layers share one connection: the pilot's Decentralised Identifier.
For Pilots
Your Career,
Decentralised.
Own your flight history. Take your verified credentials from one airline to the next without the administrative friction of legacy logbook verification.
- Self-sovereign identity control
- Instant submission to employers
- Portable across borders
For Airlines
Verified Crew,
Instantly.
Eliminate weeks of manual logbook verification during hiring. Confirm hours, ratings, and medical status in seconds with cryptographic certainty.
- Real-time credential verification
- Medical expiry alerts
- Compliance automation
For Regulators
Digital Issuance,
Framework Aligned.
Issue credentials directly into the Trust Framework. Digital ramp checks. Cross-border verification without bilateral agreements.
- ICAO Trust Framework alignment
- Direct digital credential issuance
- Tamper-evident audit trail
Regulatory Alignment
ICAO Trust Framework.
Built In, Not Bolted On.
HyperLog is designed around international aviation standards. The credential layer aligns with the ICAO Trust Framework for electronic licensing. The logbook layer is our own innovation, creating the verified evidence base that no existing standard addresses. The architecture is proposed - we are seeking regulatory engagement to build it.
- Authority-issued digital licences, medicals, and ratings
- Offline verification without internet connectivity
- Cross-border credential recognition between states
- Offline verification required by ICAO Annex 1 section 5.3.5.2
- Tamper-evident distributed logbook with full audit trail
- Multi-source verification: crew, ADS-B, airline rostering
- Automated logging with one-tap pilot confirmation
- Pilot-controlled data access under GDPR
ACCP
Aviation Common Certificate Policy
ICAO's standard for how digital certificates are issued, managed, and revoked by aviation authorities.
MAIS
Manual on Aviation Information Security
ICAO's tiered security framework covering data encryption, access control, and system integrity.
W3C VC / DID
Verifiable Credentials / Decentralised Identifiers
The open web standards for portable, digitally signed credentials and pilot identity.
ISO 18013-5
Mobile Identity Documents
The international standard for how credentials are stored on a device and presented via QR or NFC.
HR 2247
Airmen Certificate Accessibility Act
Passed the US House 24 March 2026. Directs the FAA to accept digital airmen certificates and establish authentication and verification methods by 30 November 2028.
DGCA India eGCA
First production EPL system
India's DGCA began issuing production digital licences in February 2025. The EPL transition is not theoretical - it is already underway.
Architecture
Multi-Authority
Channel Network.
The Phase 1 credential layer uses standard PKI - no distributed ledger required. The Phase 2 logbook layer proposes one channel per NAA, each with its own Certificate Authority. Pilot data stays sovereign within the issuing authority's jurisdiction. A shared verification channel enables cross-border credential checks.
NAA Channel
One channel per National Aviation Authority
Each NAA operates its own dedicated channel on the network. Pilot data stays sovereign within the issuing authority's jurisdiction. The NAA controls its own Certificate Authority, determining who is enrolled.
Global Interoperability
Any NAA can join the network
The architecture is designed to onboard any NAA worldwide. Each authority joins with its own channel and Certificate Authority. Cross-border verification works through a shared verification channel that all participants can query.
Verification Channel
All participating NAAs join a shared channel for cross-border verification. Ramp checker apps cache issuer public keys for all participating authorities, enabling full offline capability.
Pilot's Device
All credentials live on the pilot's device - private key protected by biometrics. The pilot controls who sees their data and for how long. Revocable, time-limited access for airline hiring.
Secure the
Future of Flight.
We are engaging with national aviation authorities, IATA, and aviation stakeholders to shape the trust layer for pilot credentials - aligned with the ICAO Trust Framework.