{
 "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": "superblock-poblenou",
  "title": "Superblock Poblenou",
  "canonicalUrl": "https://1001smartcities.org/projects/superblock-poblenou/"
 },
 "currentRevisionId": "2026-08-23-evidence-baseline-c9",
 "revisions": [
  {
   "id": "2026-08-23-evidence-baseline-c9",
   "createdAt": "2026-08-23T11:01:00Z",
   "effectiveAt": "2026-07-15",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 12 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:cab1dc287dd8c190b691857016c0c7d6e9be8878a320dedb2d2f8d6014d95346",
   "snapshot": {
    "asOf": "2026-07-15",
    "projectFingerprint": "sha256:fc7b3d0785cba0d0d37b134d3d5c60f09383c496d0b27a72fe078870e50bbdf3",
    "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": "succeeded",
     "evidenceGrade": "official",
     "timeline": {
      "started": 2016,
      "ended": 2018
     }
    },
    "governance": {
     "operator": "Ajuntament de Barcelona",
     "actorTypes": [
      "city-government"
     ],
     "fundingModel": "public",
     "fundingDescription": null,
     "cost": null,
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-4b3c3fbe819c6167",
      "field": "snippet",
      "text": "laid out in September 2016 inside the perimeter of Badajoz, Pallars, Llacuna and Tànger",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-4427adec49b7431d"
      ],
      "supportNote": "The city's own page on the superblock dates and locates it: \"El setembre del 2016 es va crear la Superilla del Poblenou en el perímetre format pels carrers Badajoz, Pallars, Llacuna i Tànger, a cavall entre els barris del Poblenou i del Parc i la Llacuna del Poblenou.\"",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-73f3ac284477c884",
      "field": "snippet",
      "text": "the city had tested the idea in Gràcia back in 2003",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-d029ba7746b5baee"
      ],
      "supportNote": "The Guardian traces the lineage: \"The superblocks idea was first outlined in 1987, after noise mapping revealed that levels were too high, and the first superblock was tested in 2003 in Gràcia.\"",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-41c8c38cdb9a9e75",
      "field": "snippet",
      "text": "trialled with painted road markings, movable furniture and trees in containers",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-e1f3b58f58bb9a21",
       "src-4427adec49b7431d"
      ],
      "supportNote": "The prize archive lists the tactical materials one by one: \"the reversible application of signs painted on the ground, the temporary installation of elements of street furniture, and placement of trees planted in mobile containers.\" The city says the same: \"es va actuar amb pintura, mobiliari urbà i arbres en torreta.\"",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-689de0fc22ea7dc9",
      "field": "snippet",
      "text": "at a tenth of what conventional works would have cost",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-e1f3b58f58bb9a21"
      ],
      "supportNote": "The archive states the cost ratio directly: the provisional solutions \"cut expenditures to one tenth of what a conventional project would have cost\".",
      "caveat": "This is a comparison with an unbuilt alternative rather than a measured saving: no listed source gives the cost of either the tactical phase or the permanent works.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-cb2578412668e248",
      "field": "snippet",
      "text": "then consolidated in concrete from autumn 2017",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-e1f3b58f58bb9a21",
       "src-4427adec49b7431d"
      ],
      "supportNote": "The archive dates the second phase: \"the second phase, initiated in autumn 2017, has consisted in consolidating the intervention on a permanent basis by means of conventional civil engineering work.\" The city describes the same works starting \"a la tardor de 2017\".",
      "caveat": "Both sources date the start of the permanent works; neither states when they finished.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-74c9a21aaeb32b4b",
      "field": "impact",
      "text": "Traffic on inner streets fell 58%",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-e1f3b58f58bb9a21"
      ],
      "supportNote": "The archive reports the measurement: \"Although traffic in the four roads around the perimeter has increased by 2.6%, the number of vehicles circulating in the inner streets has dropped by 58%.\"",
      "caveat": "The figures are the city's own evaluation as reported by the prize archive, which did not measure them itself; no listed source gives the measurement period or the baseline.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-21b5697867f321ea",
      "field": "impact",
      "text": "(perimeter roads rose 2.6%)",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-e1f3b58f58bb9a21"
      ],
      "supportNote": "The same sentence carries the counterweight: \"traffic in the four roads around the perimeter has increased by 2.6%\".",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-558b4cd34e533dde",
      "field": "impact",
      "text": "about 13,350 m² of street space was reclaimed for people",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-e1f3b58f58bb9a21"
      ],
      "supportNote": "The archive states the total: \"In total, the 'Poblenou Superblock' has increased public space for pedestrians by 13,350 square metres.\"",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-29b69bc68fba3627",
      "field": "impact",
      "text": "daytime noise fell about five decibels",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-e1f3b58f58bb9a21"
      ],
      "supportNote": "The archive reports it against the earlier state: \"In these streets which once exceeded the WHO's noise exposure limits, daytime noise levels have dropped by an average of five decibels.\"",
      "caveat": "The five decibels are an average across the inner streets, which the source says had previously exceeded the WHO exposure limits.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-35373d39500af1c1",
      "field": "impact",
      "text": "212 trees and more than 300 benches went in",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-e1f3b58f58bb9a21"
      ],
      "supportNote": "The archive counts both: \"More than three hundred benches have been installed, 212 new trees planted, and open-air cultural activities have multiplied.\"",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-459d27a3c7347a43",
      "field": "lesson",
      "text": "The pilot drew a media storm and sustained protest within days of the first phase",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-e1f3b58f58bb9a21"
      ],
      "supportNote": "The archive records the reaction rather than smoothing it over: \"A few days after the first phase was implemented, a media storm was whipped up. This was an unprecedented phenomenon in Barcelona's urban planning in recent decades. A not inconsiderable number of local residents and businesspeople started a wave of continuous vociferous protests.\"",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-dae9da6b028d8a85",
      "field": "lesson",
      "text": "was adjusted through a residents' working group rather than abandoned",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-4427adec49b7431d"
      ],
      "supportNote": "The city describes the mechanism and its result: an assessment process open to the neighbourhood \"amb la creació d'una Comissió de Treball amb els principals col·lectius i entitats\", and \"Fruit d'haver escoltat les queixes i les propostes, i de la feina feta en el marc de la Comissió de Treball, es va implantar la mobilitat definitiva a principis de 2017\".",
      "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-4427adec49b7431d",
      "title": "Ajuntament de Barcelona (authority)",
      "url": "https://ajuntament.barcelona.cat/superilles/en",
      "publisher": {
       "name": null,
       "domain": "ajuntament.barcelona.cat",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-4b3c3fbe819c6167",
       "clm-41c8c38cdb9a9e75",
       "clm-cb2578412668e248",
       "clm-dae9da6b028d8a85"
      ],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-15",
       "dossierCreatedAt": "2026-08-23",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "The city's own page on the Poblenou superblock: the September 2016 perimeter, the temporary and reversible first phase, the residents' working group that reshaped it, and the permanent works from autumn 2017. It carries no measurements.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-d029ba7746b5baee",
      "title": "The Guardian (press)",
      "url": "https://www.theguardian.com/cities/2016/may/17/superblocks-rescue-barcelona-spain-plan-give-streets-back-residents",
      "publisher": {
       "name": null,
       "domain": "theguardian.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-73f3ac284477c884"
      ],
      "temporal": {
       "publishedAt": "2016-05-17",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-15",
       "dossierCreatedAt": "2026-08-23",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Published four months before the Poblenou pilot opened, so it describes the programme rather than this superblock. Source for the lineage: the idea was outlined in 1987 and first tested in Gràcia in 2003.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-e1f3b58f58bb9a21",
      "title": "Centre de Cultura Contemporània de Barcelona — European Prize for Urban Public Space, \"Poblenou's Superblock\"",
      "url": "https://www.publicspace.org/works/-/project/k081-poblenou-s-superblock",
      "publisher": {
       "name": null,
       "domain": "publicspace.org",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-41c8c38cdb9a9e75",
       "clm-689de0fc22ea7dc9",
       "clm-cb2578412668e248",
       "clm-74c9a21aaeb32b4b",
       "clm-21b5697867f321ea",
       "clm-558b4cd34e533dde",
       "clm-29b69bc68fba3627",
       "clm-35373d39500af1c1",
       "clm-459d27a3c7347a43"
      ],
      "temporal": {
       "publishedAt": null,
       "updatedAt": "2023-05-19",
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-15",
       "dossierCreatedAt": "2026-08-23",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "The prize archive of the CCCB, and the only source in this entry that carries the measurements: 13,350 m² of pedestrian space gained, 58% less traffic on the inner streets against 2.6% more on the perimeter, five decibels less daytime noise, 212 trees and more than 300 benches. It also records the media storm and the resident protests that followed the first phase. The figures are the city's own evaluation, reported here rather than measured here.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 12,
     "claimsMapped": 12,
     "sourcesTotal": 3,
     "sourcesUsedByClaims": 3,
     "sourcesWithPublicationDate": 1,
     "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."
    ]
   }
  }
 ]
}