{"@context":"https://schema.org","archive":{"base_url":"https://boston.fyi","csts_conformance":"provisional","csts_profile":"CSTS-01/ARCHIVE","name":"The Boston Archive","subject":"Boston, Massachusetts"},"canonical_url":"https://boston.fyi/place/union-park-street-playground","json_ld":{"@context":"https://schema.org","@graph":[{"@id":"https://boston.fyi/#archive","@type":"ArchiveOrganization","archiveHeld":{"@type":"ArchiveComponent","about":"Boston, Massachusetts","name":"The The Boston Archive holdings"},"conformsTo":"https://boston.fyi/standards/csts-01-reference-profile","description":"The Boston Archive is the authority source for one subject. It holds the public civic record of Boston, Massachusetts — its places, people, organizations, events, works, and objects; the documents and datasets that attest them; and the grey record of what people say about the city that no authority ever wrote down. Every record carries a stable identifier, a canonical address, a full provenance chain, and its version history. Every record resolves as a page for a person and as JSON for a machine.","email":"archive@boston.fyi","founder":{"@type":"Person","name":"LeMay Inc."},"foundingDate":"2026","name":"The Boston Archive","slogan":"The record of one city, held whole.","url":"https://boston.fyi"},{"@id":"https://boston.fyi/#website","@type":"WebSite","conformsTo":"https://boston.fyi/standards/csts-01-reference-profile","inLanguage":"en","name":"The Boston Archive","potentialAction":{"@type":"SearchAction","query-input":"required name=search_term_string","target":{"@type":"EntryPoint","urlTemplate":"https://boston.fyi/ask?q={search_term_string}"}},"publisher":{"@id":"https://boston.fyi/#archive"},"url":"https://boston.fyi"},{"@id":"https://boston.fyi/place/union-park-street-playground#provenance","@type":"CreativeWork","additionalProperty":[{"@type":"PropertyValue","name":"sourceCollection","value":"City of Boston Open Data Portal (Analyze Boston)"},{"@type":"PropertyValue","name":"licenseName","value":"Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0"},{"@type":"PropertyValue","name":"licenseOpenness","value":"public_domain"},{"@type":"PropertyValue","name":"retrievedAt","value":"2026-09-02T22:38:17.221385+00:00"},{"@type":"PropertyValue","name":"transformCount","value":3}],"creator":{"@type":"Organization","name":"City of Boston Open Data Portal (Analyze Boston)"},"creditText":"City of Boston","dateCreated":"2026-09-02T22:38:17.221385+00:00","isBasedOn":"https://data.boston.gov/dataset/open-space","license":"https://opendatacommons.org/licenses/pddl/1-0/","name":"Provenance of Union Park Street Playground"},{"@id":"https://boston.fyi/place/union-park-street-playground","@type":"Place","additionalProperty":[{"@type":"PropertyValue","name":"recordType","value":"Place"},{"@type":"PropertyValue","description":"official = promulgated by an authority; vernacular = held by attestation alone. The two layers are never merged.","name":"boundaryLayer","value":"official"},{"@type":"PropertyValue","name":"placeType","value":"park"},{"@type":"PropertyValue","name":"boundaryAuthority","value":"City of Boston Parks and Recreation Department"},{"@type":"PropertyValue","name":"areaSquareMetres","value":1658.3317802846432}],"conformsTo":"https://boston.fyi/standards/csts-01-reference-profile","containedInPlace":{"@type":"Place","name":"Boston"},"dateCreated":"2026-09-02T22:43:11.602932+00:00","dateModified":"2026-09-02T22:43:11.602932+00:00","description":"Protected open space in the City of Boston open-space inventory. At 125 Union Park Street.","encoding":{"@type":"MediaObject","contentUrl":"https://boston.fyi/place/union-park-street-playground.json","encodingFormat":"application/json"},"geo":{"@type":"GeoCoordinates","latitude":42.339508741,"longitude":-71.065563682},"hasMap":{"@type":"Map","encodingFormat":"application/geo+json","geometry":{"coordinates":[[[[-71.065158759,42.33958277],[-71.065710619,42.339761788],[-71.065926914,42.339381348],[-71.065670492,42.33930439],[-71.065486819,42.339434712],[-71.065436741,42.339397839],[-71.065390588,42.339432383],[-71.065158759,42.33958277]]]],"type":"MultiPolygon"},"name":"Boundary of Union Park Street Playground"},"identifier":"urn:lemay:boston:entity:union-park-street-playground","inLanguage":"en","isPartOf":{"@id":"https://boston.fyi/#archive"},"license":"https://opendatacommons.org/licenses/pddl/1-0/","name":"Union Park Street Playground","provenance":{"@id":"https://boston.fyi/place/union-park-street-playground#provenance"},"url":"https://boston.fyi/place/union-park-street-playground","version":1},{"@id":"https://boston.fyi/place/union-park-street-playground#breadcrumbs","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","item":"https://boston.fyi","name":"The Boston Archive","position":1},{"@type":"ListItem","item":"https://boston.fyi/place","name":"Places","position":2},{"@type":"ListItem","item":"https://boston.fyi/place/union-park-street-playground","name":"Union Park Street Playground","position":3}]}]},"json_url":"https://boston.fyi/place/union-park-street-playground.json","record":{"alternate_names":[],"canonical_name":"Union Park Street Playground","canonical_path":"/place/union-park-street-playground","created_at":"2026-09-02T22:43:11.602932Z","description":"Protected open space in the City of Boston open-space inventory. At 125 Union Park Street.","detail":{"area_sq_m":1658.3317802846432,"authority":"City of Boston Parks and Recreation Department","boundary_layer":"official","centroid_geojson":{"coordinates":[-71.065563682,42.339508741],"type":"Point"},"detail_type":"Place","geometry_geojson":{"coordinates":[[[[-71.065158759,42.33958277],[-71.065710619,42.339761788],[-71.065926914,42.339381348],[-71.065670492,42.33930439],[-71.065486819,42.339434712],[-71.065436741,42.339397839],[-71.065390588,42.339432383],[-71.065158759,42.33958277]]]],"type":"MultiPolygon"},"gnis_feature_id":null,"place_type":"park","within_place_id":"59094999-1a7e-42fc-a665-bf54c5d7e59a","within_place_name":"Boston"},"entity_type":"Place","external_ids":{"address":"125 Union Park Street","boston_dataset":"open-space","latitude":42.339484750000054,"longitude":-71.06549246137497},"id":"c3216185-bd31-4c82-8a4b-cb35a1f78796","kind":"entity","provenance":{"attribution":"City of Boston","license_id":"odc-pddl","license_name":"Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0","license_url":"https://opendatacommons.org/licenses/pddl/1-0/","openness":"public_domain","retrieved_at":"2026-09-02T22:38:17.221385Z","rights_statement":"Open Data Commons Public Domain Dedication and License (PDDL)","source_id":"city-of-boston-open-data","source_identifier":"505","source_name":"City of Boston Open Data Portal (Analyze Boston)","source_url":"https://data.boston.gov/dataset/open-space","transforms":[{"description":"retrieved the dataset's GeoJSON from the City of Boston open-data portal","input_sha256":null,"operation":"fetch","output_sha256":null,"parameters":{},"performed_at":"2026-09-02T22:43:11.736136Z","seq":1,"tool":"archive-ingest 0.1.0"},{"description":"the source's own name field became the record title; no name was supplied by the archive","input_sha256":null,"operation":"normalize","output_sha256":null,"parameters":{},"performed_at":"2026-09-02T22:43:11.836404Z","seq":2,"tool":"archive-ingest 0.1.0"},{"description":"the source is WGS 84 (EPSG:4326); geometry was set to that SRID without alteration of coordinates","input_sha256":null,"operation":"reproject","output_sha256":null,"parameters":{},"performed_at":"2026-09-02T22:43:11.878380Z","seq":3,"tool":"archive-ingest 0.1.0"}]},"record_kind":"entity","slug":"union-park-street-playground","status":"published","summary":"Protected open space in the City of Boston open-space inventory. At 125 Union Park Street.","title":"Union Park Street Playground","updated_at":"2026-09-02T22:43:11.602932Z","urn":"urn:lemay:boston:entity:union-park-street-playground","version":1,"withdrawn_reason":null},"related":[{"record":{"canonical_path":"/place/boston","id":"59094999-1a7e-42fc-a665-bf54c5d7e59a","kind":"entity","title":"Boston","urn":"urn:lemay:boston:entity:boston"},"relation":"located_in"}],"urn":"urn:lemay:boston:entity:union-park-street-playground","version_history":[{"change_note":"accessioned from the City of Boston `open-space` file","changed_by":"archive-ingest 0.1.0","recorded_at":"2026-09-02T22:43:11.916505Z","version":1}]}