The Evidence FrameworkforRegulated Maintenance
Making industrial maintenance provable when audits, inspections, or incidents occur.
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Unverifiable maintenance costs billions in downtime
Source: Industry Research
Same problem across every industry
When incidents or customers demand proof of proper maintenance, traditional systems fail.
Unverifiable PM logs trigger batch holds and revalidation
Missing proof of work forces aircraft downtime and extra inspections
Unverified inspections sideline rolling stock
No proof of maintenance invalidates test results
Incomplete logs increase outage risk and repair costs
Gaps in records cause port delays and insurance friction
Every maintenance activity,
captured as audit-defensible evidence
Technicians follow SOPs while documenting work in real-time. Every job produces a single .pruved file—a tamper-evident record sealed as maintenance happens, preserved forever, playable on demand.
Three steps. Real-time evidence. Permanent proof.
Capture
Real-time evidence collection
Technicians document work as it happens. Every action is timestamped and written to the .pruved file.
Post-hoc documentation and missing proof
Seal
Cryptographic verification
Evidence is cryptographically sealed. Any tampering breaks the integrity.
Record manipulation and retroactive changes
Replay
Audit-ready playback
Auditors open the .pruved file to replay the complete maintenance timeline. Verifiable and defensible.
"We can't prove what happened" during audits
Capture
Real-time evidence collection
Technicians document work as it happens. Every action is timestamped and written to the .pruved file.
Post-hoc documentation and missing proof
Seal
Cryptographic verification
Evidence is cryptographically sealed. Any tampering breaks the integrity.
Record manipulation and retroactive changes
Replay
Audit-ready playback
Auditors open the .pruved file to replay the complete maintenance timeline. Verifiable and defensible.
"We can't prove what happened" during audits
What's Inside a .pruved File
When regulators request evidence, you hand them a single tamper-evident file containing everything that happened—verifiable, complete, and defensible.
Context
- WHO: Verified technician identity
- WHEN: Immutable timestamps (no backdating)
- WHERE: GPS-confirmed location
- WHAT: Logged device/tool IDs
Evidence
- Photos/videos: Locked EXIF (can't swap later)
- Measurements: Real-time tool readings
- Sign-off: Timestamped digital signatures
- Timeline: Before/during/after proof
Compliance
- SOP adherence: Steps followed or skipped
- Sequence: Enforced order (can't skip ahead)
- Deviations: Flagged with tech notes
- Completion: Verified sign-off or incomplete
Integrity
- Timestamps: Microsecond precision (proves sequence)
- Linked steps: Can't insert or reorder events
- Sealed at completion: Can't be altered
- Verification: Instant tampering detection
One file. Complete replay. Sealed record.
Built on ALCOA+
The global standard for data integrity.
Make your maintenance audit-ready
Working with early implementors to define the evidence framework for regulated maintenance.
Join us to shape the evidence framework
Design partnerships for pharma, aerospace, maritime, railways, and testing labs
Industry Partners
Organizations implementing regulated maintenance at scale.
What We're Looking For
Active protocols, compliance requirements, and real-world feedback.