{ "schemaVersion": "1.0.0", "constitutionVersion": "1.0.0", "createdAt": "2026-08-12T00:00:00Z", "description": "Append-only Evidence Passport records. Old revisions are immutable; corrections create a new revision and preserve the previous permalink.", "entity": { "type": "project", "id": "colombo-port-logistics", "title": "Colombo Port Navis N4 Terminal Operating System", "canonicalUrl": "https://1001smartcities.org/projects/colombo-port-logistics/" }, "currentRevisionId": "2026-08-22-evidence-baseline", "revisions": [ { "id": "2026-08-22-evidence-baseline", "createdAt": "2026-08-22T09:02:00Z", "effectiveAt": "2026-08-07", "changeType": "baseline", "summary": "Created the first structured Evidence Passport with 10 claims and 3 source dossiers.", "preparedBy": { "type": "automation", "label": "AI-assisted evidence preparation", "humanApproved": false }, "review": { "status": "unreviewed", "by": null, "date": null, "note": "Awaiting operator and domain-expert review; publication of this revision implies neither." }, "changes": [ { "operation": "add", "path": "/evidencePassport", "summary": "Added claim-level evidence mapping and source dossiers." }, { "operation": "add", "path": "/revisionHistory", "summary": "Established a permanent, hash-addressed baseline revision." } ], "snapshotHash": "sha256:8d857c9ecbfc9339fbe6d13cd3999f17afbe9d9304882f3e9c9abb5ce30cb1e6", "snapshot": { "asOf": "2026-08-07", "projectFingerprint": "sha256:328ad98ed97bec3f4269ab96744643cd06f0212b075cfa79fcf866fdef1b6362", "assurance": { "status": "unreviewed", "scope": "evidence-passport-revision", "statement": "AI-assisted structural preparation. This revision has not been reviewed by a human or subject-matter expert.", "machineChecks": [ "schema", "publication-diff-contract", "material-project-fingerprint", "claim-text-drift", "source-reference-resolution", "complete-source-dossier", "snapshot-hash" ] }, "projectState": { "status": "live", "outcome": "ongoing", "evidenceGrade": "official", "timeline": { "started": 2021, "ended": null } }, "governance": { "operator": "Sri Lanka Ports Authority", "actorTypes": [ "utility" ], "fundingModel": "public", "fundingDescription": null, "cost": null, "ownership": null, "decisionRights": null, "exitConditions": null }, "claims": [ { "id": "clm-faa89522a1dc5e78", "field": "snippet", "text": "Sri Lanka Ports Authority runs its state-operated Colombo berths", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-7cc371135095126a" ], "supportNote": "The port authority's own news release attributes both upgraded terminals to itself: \"The Navis Sparcs / Express version 3.7 Terminal Management System (TMS) in use at Jaya Container Terminal ( JCT) and East Container Terminal (ECT) of Sri Lanka Ports Authority (SLPA) has been upgraded to N4.\" Sri Lanka Ports Authority is the state ports authority, and these are the berths it operates itself.", "caveat": "The Port of Colombo also holds terminals run by other companies — South Asia Gateway Terminals, Colombo International Container Terminals and the West Container Terminal — and this entry describes none of them. The source speaks only for the port authority's own berths.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-c87561886c294f27", "field": "snippet", "text": "Jaya Container Terminal, with the East Container Terminal also named in its upgrade announcement", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-7cc371135095126a" ], "supportNote": "The upgrade announcement names both terminals in its opening sentence: the terminal management system \"in use at Jaya Container Terminal ( JCT) and East Container Terminal (ECT) of Sri Lanka Ports Authority (SLPA) has been upgraded to N4\", and it repeats the pair throughout (\"The establishment of N-4 software at the JCT and ECT of SLPA\").", "caveat": "The port authority's dated go-live notice on its own system page names only Jaya Container Terminal, spelled there as \"Jaye Container Terminal\". No source states when the East Container Terminal began running on the new system.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-e5dd6195de713d5c", "field": "snippet", "text": "on the Navis N4 terminal operating system, live since 29 April 2021", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-61da7d8efb781de5", "src-d18b21f112f29de8" ], "supportNote": "The port authority's system page carries the go-live notice: \"We are pleased to inform you that the New Version of Navis Terminal Management System which is called N4 has been successfully implemented on 29th April 2021 at Jaye Container Terminal (JCT).\" The software supplier's own release confirms the change independently of the date, stating that \"Sri Lanka Port Authority (SLPA) has gone live with Navis N4 at its Colombo Port\".", "caveat": "The date belongs to Jaya Container Terminal alone; neither source dates the East Container Terminal. The supplier's release gives no date at all.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-9126a156e1ea816a", "field": "snippet", "text": "replacing a Navis SPARCS/EXPRESS setup from 2009", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-61da7d8efb781de5" ], "supportNote": "The system page dates the predecessor: \"The Contract agreements were signed in 2008 ... As a result, SLPA replaced its age-old Terminal Operating System at JCT and UCT with Navis™ SPARCS ver. 3.10 and Navis™ EXPRESS ver. 2.9 in May, 2009.\"", "caveat": "The two operator sources disagree on which version was replaced: the system page names SPARCS 3.10 and EXPRESS 2.9, while the 2021 announcement calls it \"Sparcs / Express version 3.7\". The 2009 installation covered Jaya Container Terminal and the Unity Container Terminal, not the East Container Terminal.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-7d4a7d086d070379", "field": "snippet", "text": "N4 handles ship and yard planning and gate control", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-7cc371135095126a" ], "supportNote": "The announcement lists exactly these three functions: \"The establishment of N-4 software at the JCT and ECT of SLPA will further enable efficient yard and ship planning and gate control that would elevate the SLPA's operational productivity.\"", "caveat": "The wording describes what the software will enable at the point of installation rather than reporting how it is used, and no source measures any of the three functions.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-b3eb75649e63ea5d", "field": "snippet", "text": "links to the Cargo Management System through a Community Access Portal", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-7cc371135095126a" ], "supportNote": "The announcement names both systems in one sentence: \"This new TMS N4, would enhance the capabilities of interactions between the Cargo Management System (CMS) improving the efficiency in clearing and export of local cargo facilitating the shippers and exporters through Community Access Portal (CAP).\"", "caveat": "The announcement does not say who runs the Cargo Management System; the attribution to Sri Lanka Customs appears in no listed source. It also promises an improvement in the interaction rather than reporting a completed interface.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-ba6178303ed9e673", "field": "snippet", "text": "takes external users' verified-gross-mass declarations as VERMAS EDI uploads via a web portal", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-61da7d8efb781de5" ], "supportNote": "The system page instructs filers to move to a web upload: \"Therefore all the external users who are in practice to send VERMAS (VGM) for SLPA, request to upload the VERMAS EDI files through the following link in future.\" The link on that page points to a web portal at n4cap.slpa.lk.", "caveat": "The instruction addresses \"external users\" in general; shipping agents are not named as the filers, and the page does not say how many declarations arrive this way.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-7fef7011b2587288", "field": "snippet", "text": "SLPA's own material has listed a DGPS-based position detection system as forthcoming since 2009", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-61da7d8efb781de5", "src-7cc371135095126a" ], "supportNote": "The system page describes the 2009 installation as including \"a DGPS (Differential Global Positioning System)-based PDS (Position Detection System) solution (to be implemented in March, 2010) for container tracking\" — a target date that the page has never updated. Twelve years later the upgrade announcement still places both items ahead: \"The Position Detection System (PDS) and the Yard Automation that can be enacted with the N-4 software will also be introduced at the JCT and ECT in near future.\"", "caveat": "Only the position detection system appears in the description of the 2009 installation; yard automation is named as forthcoming for the first time in the 2021 announcement. The system page carries no publication date of its own, so 2009 dates the installation it describes rather than the text.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-11dc98502536859a", "field": "snippet", "text": "the 2021 announcement still described it as 'to be introduced'", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-7cc371135095126a" ], "supportNote": "The announcement of the N4 upgrade keeps both items in the future tense: \"The Position Detection System (PDS) and the Yard Automation that can be enacted with the N-4 software will also be introduced at the JCT and ECT in near future.\"", "caveat": "The quoted phrase is a shortening of the announcement, whose wording is \"will also be introduced at the JCT and ECT in near future\".", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-49497fe5859d1de8", "field": "snippet", "text": "the data layer here is planning software, not a sensor-tracked yard", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-7cc371135095126a" ], "supportNote": "The upgrade announcement places accurate container location after the upgrade rather than inside it: \"The Position Detection System (PDS) and the Yard Automation that can be enacted with the N-4 software will also be introduced at the JCT and ECT in near future. Hence, this system will accurately locate all TEUs being operated at the terminal.\" The port authority's system page pulls the other way: it describes the installation already in place as including \"an active Tag network for container movement with Gate control, a terminal-wide handheld and vehicular-mounted wireless network\", which is sensing equipment in the yard. That page gives no date, no coverage and no evidence that the tag network is in service, while the position detection system listed beside it has been pending since a target of March 2010.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } } ], "sources": [ { "id": "src-61da7d8efb781de5", "title": "Sri Lanka Ports Authority — TMS & e-systems (operator)", "url": "https://www.slpa.lk/port-colombo/tms-esystem", "publisher": { "name": null, "domain": "slpa.lk", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-e5dd6195de713d5c", "clm-9126a156e1ea816a", "clm-ba6178303ed9e673", "clm-7fef7011b2587288" ], "temporal": { "publishedAt": null, "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-07", "dossierCreatedAt": "2026-08-22", "retrievedAt": null, "status": "record-date-only" }, "locator": { "type": "descriptive-source-note", "value": "System description; VERMAS EDI upload live; DGPS-PDS listed as 'to be implemented in March, 2010' — never confirmed live; names JCT and UCT.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-7cc371135095126a", "title": "SLPA News — SLPA Upgrades its Terminal Management System (operator)", "url": "https://news.slpa.lk/index.php/2021/05/09/slpa-upgrades-its-terminal-management-system/", "publisher": { "name": null, "domain": "news.slpa.lk", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-faa89522a1dc5e78", "clm-c87561886c294f27", "clm-7d4a7d086d070379", "clm-b3eb75649e63ea5d", "clm-7fef7011b2587288", "clm-11dc98502536859a", "clm-49497fe5859d1de8" ], "temporal": { "publishedAt": "2021-05-09", "updatedAt": "2021-05-10", "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-07", "dossierCreatedAt": "2026-08-22", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "N4 go-live 29.04.2021 at JCT and ECT; PDS and yard automation 'will be introduced at the JCT and ECT in near future'.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-d18b21f112f29de8", "title": "Business Wire — Navis N4 go-live at Colombo Port (vendor)", "url": "https://www.businesswire.com/news/home/20210701005292/en/Sri-Lanka-Port-Authority-has-Gone-Live-with-Navis-N4-at-Colombo-Port-to-Improve-Services-with-Advanced-TOS-Technology", "publisher": { "name": null, "domain": "businesswire.com", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-e5dd6195de713d5c" ], "temporal": { "publishedAt": "2021-07-01", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-08-07", "dossierCreatedAt": "2026-08-22", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Vendor confirmation of the go-live; ~2.5M TEU annual throughput at the SLPA facility.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } } ], "coverage": { "claimsTotal": 10, "claimsMapped": 10, "sourcesTotal": 3, "sourcesUsedByClaims": 3, "sourcesWithPublicationDate": 2, "sourcesWithArchive": 0, "sourcesWithExactLocator": 0, "sourcesWithContentHash": 0 }, "limits": [ "Publisher names and source languages have not yet been classified; domains are recorded without guessing.", "Existing source notes are descriptive locators, not page- or paragraph-exact citations.", "A missing archive, publication date or content hash is shown as null rather than inferred.", "The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim." ] } } ] }