MMSI 368485570 · Company preview-a
Purpose: claims · Reference: DEMONSTRATION-CLAIM-001
Review saved in capture 4 at 2026-10-28T21:20:38.675447+00:00 by preview-analyst
Time (UTC): 2026-10-28T19:00:00+00:00 · Location: Demonstration review area; location not independently verified
Synthetic claims exercise: review recorded vessel observations around the reported incident time.
This timeline contains only observations preserved in this case, not a complete vessel track or an independent incident reconstruction. Repeated observations are deduplicated; capture time differs from observation time.
| Observation time | Relative to incident | Recorded source / time quality | Data mode | Position (lat, lon) | Gap minutes at capture | Capture |
|---|---|---|---|---|---|---|
| 2026-10-28 18:01:08.732535 UTC | before | Demonstration AIS fixtures Unverified source timestamp | demonstration | 0.0, 0.0 | 128.39 | 1 |
| 2026-10-28 18:42:18.699020 UTC | before | Demonstration AIS fixtures Unverified source timestamp | demonstration | 0.0, 0.0 | 123.01 | 3 |
| 2026-10-28 19:10:54.595317 UTC | after | Demonstration AIS fixtures Unverified source timestamp | demonstration | 0.0, 0.0 | 129.73 | 4 |
| 2026-10-28 20:14:36.718169 UTC | after | Demonstration AIS fixtures Unverified source timestamp | demonstration | 0.0, 0.0 | 0.09 | 2 |
Demonstration AIS captures only. No independent port, satellite or claims documents supplied.
Observation gaps require further review; available evidence does not establish cause or deliberate shutdown.
This narrative summary has no automatic evidence attribution. Review the individually linked findings below.
Was the source delivering observations during the gap? Are there independent incident records?
Request provider delivery records and independently corroborated incident documentation.
Relationships and explanations are analyst assessments. A linked capture does not by itself establish that a finding is correct. Document attachments are not included; corroboration text remains user supplied.
The available captures suggest an observation gap around the incident, but its duration needs reconciliation.
Compare the older gap capture with the later received observation. These demonstration records cannot establish intent or a continuous outage.
Supporting: Open capture 1
Capture 1 preserves a 128-minute received-observation gap and the source limitations.
Contradicting: Open capture 2
Capture 2 records a later received observation, which argues against assuming a continuous outage across the whole period.
Was the provider receiving messages throughout the incident window?
Captured 2026-10-28T20:09:32.264422+00:00 by preview-analyst
This capture uses explicitly labelled demonstration observations. It does not describe verified live vessel activity.
Recorded source: Demonstration AIS fixtures; confidence: limited; not a calibrated probability
Not recorded
{
"analyst_note": "",
"assessment": {
"assessed_at": "2026-10-28T20:09:32.253493+00:00",
"category": "demonstration",
"confidence": "limited; not a calibrated probability",
"data_mode": "demonstration",
"engine_version": "ais-gap-review/1",
"explanation": "This capture uses explicitly labelled demonstration observations. It does not describe verified live vessel activity.",
"gap_minutes": 128.39,
"limitations": [
"A received-observation gap does not establish intentional AIS shutdown or misconduct.",
"Current peer positions are compared with the target last-known position; their coverage may differ.",
"The peer sample is bounded and is not a complete receiver-coverage model.",
"Observations are copied during assessment and are not an atomic snapshot of the entire feed.",
"Provider attribution and timestamps are supplied by the source and have not been independently verified.",
"Receiver/feed heartbeat telemetry is not available in this assessment."
],
"next_checks": [
{
"action": "Check provider delivery and receiver-health records for the gap period.",
"automatic": false,
"cost": "not quoted"
},
{
"action": "Seek an independent AIS, port-call, or appropriately licensed satellite observation.",
"automatic": false,
"cost": "not quoted"
},
{
"action": "Record plausible operational or equipment explanations and an analyst conclusion.",
"automatic": false,
"cost": "not quoted"
}
],
"peer_context": {
"comparable_nearby": 3,
"fresh_within_minutes": 10,
"radius_km": 50,
"recent_nearby": 3,
"records": [
{
"age_minutes": 8.39,
"distance_km": 1.11,
"mmsi": "222222222",
"observed_at": "2026-10-28T20:01:08.732535+00:00",
"source": "Demonstration AIS fixtures"
},
{
"age_minutes": 8.39,
"distance_km": 2.22,
"mmsi": "222222223",
"observed_at": "2026-10-28T20:01:08.732535+00:00",
"source": "Demonstration AIS fixtures"
},
{
"age_minutes": 8.39,
"distance_km": 3.34,
"mmsi": "222222224",
"observed_at": "2026-10-28T20:01:08.732535+00:00",
"source": "Demonstration AIS fixtures"
}
],
"sampled_records": 4
},
"source": "Demonstration AIS fixtures",
"source_status": "recorded",
"target": {
"data_source": null,
"demo": true,
"flag": "US",
"heading": null,
"last_seen": null,
"lat": 0.0,
"lon": 0.0,
"mmsi": "368485570",
"name": "DEMONSTRATION vessel",
"simulated": null,
"source": "Demonstration AIS fixtures",
"speed": null,
"timestamp": "2026-10-28T18:01:08.732535+00:00",
"vessel_type": "Cargo"
},
"threshold_minutes": 30
},
"asset_id": "368485570",
"case_id": "10314bd2-f104-4dc3-b826-0374d0dd52da",
"case_title": "Demonstration — AIS gap review",
"company_id": "preview-a",
"created_at": "2026-10-28T20:09:32.264422+00:00",
"created_by": "preview-analyst",
"previous_hash": "GENESIS",
"sequence": 1,
"digest": "af5d7871bcd4051b1f812311b1e6b225d0fccd8ea5cf2e8bf99b3ab0e48e053a"
}Captured 2026-10-28T20:14:41.879808+00:00 by preview-analyst
This capture uses explicitly labelled demonstration observations. It does not describe verified live vessel activity.
Recorded source: Demonstration AIS fixtures; confidence: limited; not a calibrated probability
Synthetic review: provider observation returned; preserve the original gap evidence.
{
"analyst_note": "Synthetic review: provider observation returned; preserve the original gap evidence.",
"assessment": {
"assessed_at": "2026-10-28T20:14:41.878679+00:00",
"category": "demonstration",
"confidence": "limited; not a calibrated probability",
"data_mode": "demonstration",
"engine_version": "ais-gap-review/1",
"explanation": "This capture uses explicitly labelled demonstration observations. It does not describe verified live vessel activity.",
"gap_minutes": 0.09,
"limitations": [
"A received-observation gap does not establish intentional AIS shutdown or misconduct.",
"Current peer positions are compared with the target last-known position; their coverage may differ.",
"The peer sample is bounded and is not a complete receiver-coverage model.",
"Observations are copied during assessment and are not an atomic snapshot of the entire feed.",
"Provider attribution and timestamps are supplied by the source and have not been independently verified.",
"Receiver/feed heartbeat telemetry is not available in this assessment."
],
"next_checks": [
{
"action": "Check provider delivery and receiver-health records for the gap period.",
"automatic": false,
"cost": "not quoted"
},
{
"action": "Seek an independent AIS, port-call, or appropriately licensed satellite observation.",
"automatic": false,
"cost": "not quoted"
},
{
"action": "Record plausible operational or equipment explanations and an analyst conclusion.",
"automatic": false,
"cost": "not quoted"
}
],
"peer_context": {
"comparable_nearby": 3,
"fresh_within_minutes": 10,
"radius_km": 50,
"recent_nearby": 0,
"records": [
{
"age_minutes": 13.55,
"distance_km": 1.11,
"mmsi": "222222222",
"observed_at": "2026-10-28T20:01:08.732535+00:00",
"source": "Demonstration AIS fixtures"
},
{
"age_minutes": 13.55,
"distance_km": 2.22,
"mmsi": "222222223",
"observed_at": "2026-10-28T20:01:08.732535+00:00",
"source": "Demonstration AIS fixtures"
},
{
"age_minutes": 13.55,
"distance_km": 3.34,
"mmsi": "222222224",
"observed_at": "2026-10-28T20:01:08.732535+00:00",
"source": "Demonstration AIS fixtures"
}
],
"sampled_records": 4
},
"source": "Demonstration AIS fixtures",
"source_status": "recorded",
"target": {
"data_source": null,
"demo": true,
"flag": "US",
"heading": null,
"last_seen": null,
"lat": 0.0,
"lon": 0.0,
"mmsi": "368485570",
"name": "DEMONSTRATION vessel",
"simulated": null,
"source": "Demonstration AIS fixtures",
"speed": null,
"timestamp": "2026-10-28T20:14:36.718169+00:00",
"vessel_type": "Cargo"
},
"threshold_minutes": 30
},
"asset_id": "368485570",
"case_id": "10314bd2-f104-4dc3-b826-0374d0dd52da",
"case_title": "Demonstration — AIS gap review",
"company_id": "preview-a",
"created_at": "2026-10-28T20:14:41.879808+00:00",
"created_by": "preview-analyst",
"previous_hash": "af5d7871bcd4051b1f812311b1e6b225d0fccd8ea5cf2e8bf99b3ab0e48e053a",
"sequence": 2,
"digest": "d7c908f32dcf6ea553189af34710778f89aab51892827518616c780e376f6fa6"
}Captured 2026-10-28T20:45:19.260584+00:00 by preview-analyst
This capture uses explicitly labelled demonstration observations. It does not describe verified live vessel activity.
Recorded source: Demonstration AIS fixtures; confidence: limited; not a calibrated probability
Not recorded
{
"analyst_note": "",
"assessment": {
"assessed_at": "2026-10-28T20:45:19.259075+00:00",
"category": "demonstration",
"confidence": "limited; not a calibrated probability",
"data_mode": "demonstration",
"engine_version": "ais-gap-review/1",
"explanation": "This capture uses explicitly labelled demonstration observations. It does not describe verified live vessel activity.",
"gap_minutes": 123.01,
"limitations": [
"A received-observation gap does not establish intentional AIS shutdown or misconduct.",
"Current peer positions are compared with the target last-known position; their coverage may differ.",
"The peer sample is bounded and is not a complete receiver-coverage model.",
"Observations are copied during assessment and are not an atomic snapshot of the entire feed.",
"Provider attribution and timestamps are supplied by the source and have not been independently verified.",
"Receiver/feed heartbeat telemetry is not available in this assessment."
],
"next_checks": [
{
"action": "Check provider delivery and receiver-health records for the gap period.",
"automatic": false,
"cost": "not quoted"
},
{
"action": "Seek an independent AIS, port-call, or appropriately licensed satellite observation.",
"automatic": false,
"cost": "not quoted"
},
{
"action": "Record plausible operational or equipment explanations and an analyst conclusion.",
"automatic": false,
"cost": "not quoted"
}
],
"peer_context": {
"comparable_nearby": 3,
"fresh_within_minutes": 10,
"radius_km": 50,
"recent_nearby": 3,
"records": [
{
"age_minutes": 3.01,
"distance_km": 1.11,
"mmsi": "222222222",
"observed_at": "2026-10-28T20:42:18.699020+00:00",
"source": "Demonstration AIS fixtures"
},
{
"age_minutes": 3.01,
"distance_km": 2.22,
"mmsi": "222222223",
"observed_at": "2026-10-28T20:42:18.699020+00:00",
"source": "Demonstration AIS fixtures"
},
{
"age_minutes": 3.01,
"distance_km": 3.34,
"mmsi": "222222224",
"observed_at": "2026-10-28T20:42:18.699020+00:00",
"source": "Demonstration AIS fixtures"
}
],
"sampled_records": 4
},
"source": "Demonstration AIS fixtures",
"source_status": "recorded",
"target": {
"data_source": null,
"demo": true,
"flag": "US",
"heading": null,
"last_seen": null,
"lat": 0.0,
"lon": 0.0,
"mmsi": "368485570",
"name": "DEMONSTRATION vessel",
"simulated": null,
"source": "Demonstration AIS fixtures",
"speed": null,
"timestamp": "2026-10-28T18:42:18.699020+00:00",
"vessel_type": "Cargo"
},
"threshold_minutes": 30
},
"asset_id": "368485570",
"case_id": "10314bd2-f104-4dc3-b826-0374d0dd52da",
"case_title": "Demonstration — AIS gap review",
"company_id": "preview-a",
"created_at": "2026-10-28T20:45:19.260584+00:00",
"created_by": "preview-analyst",
"insurance_review": {
"corroboration": "Demonstration AIS captures only. No independent port, satellite or claims documents supplied.",
"findings": "Observation gaps require further review; available evidence does not establish cause or deliberate shutdown.",
"incident_at": "2026-10-28T19:00:00+00:00",
"incident_summary": "Synthetic claims exercise: review recorded vessel observations around the reported incident time.",
"location": "Demonstration review area; location not independently verified",
"next_actions": "Request provider delivery records and independently corroborated incident documentation.",
"purpose": "claims",
"reference": "DEMONSTRATION-CLAIM-001",
"unanswered_questions": "Was the source delivering observations during the gap? Are there independent incident records?"
},
"previous_hash": "d7c908f32dcf6ea553189af34710778f89aab51892827518616c780e376f6fa6",
"sequence": 3,
"digest": "c50608d6d259b543dffc4d8203a9d20bec9449128b8aea8cf83702ed0d50c8b5"
}Captured 2026-10-28T21:20:38.675447+00:00 by preview-analyst
This capture uses explicitly labelled demonstration observations. It does not describe verified live vessel activity.
Recorded source: Demonstration AIS fixtures; confidence: limited; not a calibrated probability
Not recorded
{
"analyst_note": "",
"assessment": {
"assessed_at": "2026-10-28T21:20:38.673782+00:00",
"category": "demonstration",
"confidence": "limited; not a calibrated probability",
"data_mode": "demonstration",
"engine_version": "ais-gap-review/1",
"explanation": "This capture uses explicitly labelled demonstration observations. It does not describe verified live vessel activity.",
"gap_minutes": 129.73,
"limitations": [
"A received-observation gap does not establish intentional AIS shutdown or misconduct.",
"Current peer positions are compared with the target last-known position; their coverage may differ.",
"The peer sample is bounded and is not a complete receiver-coverage model.",
"Observations are copied during assessment and are not an atomic snapshot of the entire feed.",
"Provider attribution and timestamps are supplied by the source and have not been independently verified.",
"Receiver/feed heartbeat telemetry is not available in this assessment."
],
"next_checks": [
{
"action": "Check provider delivery and receiver-health records for the gap period.",
"automatic": false,
"cost": "not quoted"
},
{
"action": "Seek an independent AIS, port-call, or appropriately licensed satellite observation.",
"automatic": false,
"cost": "not quoted"
},
{
"action": "Record plausible operational or equipment explanations and an analyst conclusion.",
"automatic": false,
"cost": "not quoted"
}
],
"peer_context": {
"comparable_nearby": 3,
"fresh_within_minutes": 10,
"radius_km": 50,
"recent_nearby": 3,
"records": [
{
"age_minutes": 9.73,
"distance_km": 1.11,
"mmsi": "222222222",
"observed_at": "2026-10-28T21:10:54.595317+00:00",
"source": "Demonstration AIS fixtures"
},
{
"age_minutes": 9.73,
"distance_km": 2.22,
"mmsi": "222222223",
"observed_at": "2026-10-28T21:10:54.595317+00:00",
"source": "Demonstration AIS fixtures"
},
{
"age_minutes": 9.73,
"distance_km": 3.34,
"mmsi": "222222224",
"observed_at": "2026-10-28T21:10:54.595317+00:00",
"source": "Demonstration AIS fixtures"
}
],
"sampled_records": 4
},
"source": "Demonstration AIS fixtures",
"source_status": "recorded",
"target": {
"data_source": null,
"demo": true,
"flag": "US",
"heading": null,
"last_seen": null,
"lat": 0.0,
"lon": 0.0,
"mmsi": "368485570",
"name": "DEMONSTRATION vessel",
"simulated": null,
"source": "Demonstration AIS fixtures",
"speed": null,
"timestamp": "2026-10-28T19:10:54.595317+00:00",
"vessel_type": "Cargo"
},
"threshold_minutes": 30
},
"asset_id": "368485570",
"case_id": "10314bd2-f104-4dc3-b826-0374d0dd52da",
"case_title": "Demonstration — AIS gap review",
"company_id": "preview-a",
"created_at": "2026-10-28T21:20:38.675447+00:00",
"created_by": "preview-analyst",
"insurance_review": {
"corroboration": "Demonstration AIS captures only. No independent port, satellite or claims documents supplied.",
"findings": "Observation gaps require further review; available evidence does not establish cause or deliberate shutdown.",
"incident_at": "2026-10-28T19:00:00+00:00",
"incident_summary": "Synthetic claims exercise: review recorded vessel observations around the reported incident time.",
"linked_findings": [
{
"evidence_links": [
{
"capture_sequence": 1,
"rationale": "Capture 1 preserves a 128-minute received-observation gap and the source limitations.",
"relationship": "supporting"
},
{
"capture_sequence": 2,
"rationale": "Capture 2 records a later received observation, which argues against assuming a continuous outage across the whole period.",
"relationship": "contradicting"
}
],
"reasoning": "Compare the older gap capture with the later received observation. These demonstration records cannot establish intent or a continuous outage.",
"statement": "The available captures suggest an observation gap around the incident, but its duration needs reconciliation.",
"unresolved": "Was the provider receiving messages throughout the incident window?"
}
],
"location": "Demonstration review area; location not independently verified",
"next_actions": "Request provider delivery records and independently corroborated incident documentation.",
"purpose": "claims",
"reference": "DEMONSTRATION-CLAIM-001",
"unanswered_questions": "Was the source delivering observations during the gap? Are there independent incident records?"
},
"previous_hash": "c50608d6d259b543dffc4d8203a9d20bec9449128b8aea8cf83702ed0d50c8b5",
"sequence": 4,
"digest": "53beb10fa06d3b5182bc55d1a862bc7d3c28c9ec7fd4b8387328fd38f4475763"
}Review evidence chain head: 53beb10fa06d3b5182bc55d1a862bc7d3c28c9ec7fd4b8387328fd38f4475763