Audit-Grade Time & Phase Integrity Record (Offline-Verifiable)

Non-confidential scope: a method + system for multi-source integrity certification / integrity assessment of time/phase, including a discrepancy result Δ with uncertainty UΔ, and a portable evidence record designed for independent verification. Detailed claim scope, verification specification, and deployment variants are available under NDA.

Organizations that must defend timing correctness under audit, incident response, or disputes — where “we run PTP/NTP” is not defensible evidence, and where vendor-locked monitoring cannot be independently verified later.

Modern infrastructure is time-dependent (logging, sequencing, trading, telecom, industrial control, distributed systems). Yet timing quality is often treated as “assumed correct” until an incident, audit, or dispute demands proof.

• Silent drift and configuration errors can accumulate without obvious alarms.
• Manipulation / interference (e.g., GNSS issues, path asymmetry, compromised timing domains) can degrade integrity.
• When it matters, you need portable evidence — not dashboards, screenshots, or vendor statements.

Common tooling solves synchronization and operations, but not audit-grade, independently verifiable evidence.

• PTP/NTP/GNSS distribute/synchronize time, but do not inherently produce dispute-ready integrity evidence.
• Vendor monitoring helps operations, but results often cannot be independently verified offline by third parties.
• Cryptographic timestamps protect logs, but do not prove the underlying clock was correct.
• Single-source checks are fragile: if the source is wrong, the “proof” is wrong.

A certification/evidence core that ingests multiple time/phase-related estimates from heterogeneous, physically independent channels, brings them to a comparable form, computes a discrepancy Δ with uncertainty UΔ, and emits a tamper-evident record intended for independent verification.

High-level flow (non-confidential):

• Acquire independent time/phase-related estimates from at least two distinct channels.
• Harmonize into a comparable representation (same reference window/epoch and comparable domain).
• Compare using a defined comparison rule to compute Δ and its associated UΔ.
• Issue a portable record containing (Δ, UΔ) plus identifiers and context needed for verification.
• Verify offline by re-checking integrity and deterministically validating the result per the record’s referenced specification.

• Offline-verifiable: verification does not rely on a vendor-hosted service or private APIs.
• Uncertainty-aware: results include (Δ, UΔ), supporting audit-grade defensibility.
• Designed for common-mode risk: relies on heterogeneous, physically independent cross-checks.
• Portable evidence: store, transfer, and verify later (audit, incident response, disputes).
• Verification specification: the record references a defined verification method to support independent checks.

Suitable for continuous monitoring, incident snapshots, or evidence issuance on demand. Deployment variants and verification specification details are available under NDA.

• Audit evidence for timestamped operations (finance, compliance, investigations).
• Incident response: produce defensible timing integrity evidence during suspected interference or misconfiguration.
• Telecom / data centers: validate timing domains and reduce verification vendor lock-in.
• OT/ICS & TSN: integrity evidence for deterministic networks and critical control environments.
• Resilient PNT: quantify integrity under GNSS degradation and holdover scenarios.

Open to structured, email-first engagement (pre-grant and post-grant). Typical options include:

• Non-exclusive evaluation / R&D license (pre-grant) for internal validation.
• Commercial non-exclusive license for product deployment.
• Field-of-use license (e.g., finance/compliance, telecom, defense), subject to terms.

NDA materials can include: claim-scope overview, verification specification outline, record format options, and deployment variants. Contact: contact@patrykrosa.com