{
  "purpose": "Retest of previously unavailable services listed in CODEX_TASKS.md",
  "testedAtRangeUTC": ["2026-09-16T15:53:16Z", "2026-09-16T15:57:00Z"],
  "method": "GET",
  "sampleCenter": {"lat": 31.04633, "lon": 101.30494},
  "scope": "One sample per endpoint/zoom; network failures retried once outside sandbox. HTTP success and image signatures do not prove regional completeness, visual quality, capture dates, or license entitlement.",
  "probes": [
    {"service": "Wayback configuration", "url": "https://s3-us-west-2.amazonaws.com/config.maptiles.arcgis.com/waybackconfig.json", "status": 200, "bytes": 105715, "contentType": "application/json", "valid": "JSON", "versionCount": 196, "latestTitle": "World Imagery (Wayback 2026-08-05)", "latestRelease": 26334},
    {"service": "Wayback tile", "url": "https://wayback.maptiles.arcgis.com/arcgis/rest/services/World_Imagery/WMTS/1.0.0/default028mm/MapServer/tile/26334/12/1676/3200", "status": null, "bytes": 0, "contentType": null, "error": "ECONNREFUSED", "outsideSandboxRetry": "same result"},
    {"service": "Clarity z12", "url": "https://clarity.maptiles.arcgis.com/arcgis/rest/services/World_Imagery/MapServer/tile/12/1676/3200", "status": 200, "bytes": 21286, "contentType": "image/jpeg", "imageSignature": "JPEG"},
    {"service": "Clarity z16", "url": "https://clarity.maptiles.arcgis.com/arcgis/rest/services/World_Imagery/MapServer/tile/16/26817/51210", "status": null, "bytes": 0, "contentType": null, "error": "ECONNREFUSED", "outsideSandboxRetry": "same result"},
    {"service": "Clarity z18", "url": "https://clarity.maptiles.arcgis.com/arcgis/rest/services/World_Imagery/MapServer/tile/18/107269/204840", "status": 404, "bytes": 196, "contentType": "text/html; charset=iso-8859-1", "imageSignature": null},
    {"service": "OpenCycleMap", "url": "https://tile.opencyclemap.org/cycle/12/3200/1676.png", "status": null, "bytes": 0, "contentType": null, "error": "UND_ERR_CONNECT_TIMEOUT", "outsideSandboxRetry": "same result"},
    {"service": "OpenCycleMap a", "url": "https://a.tile.opencyclemap.org/cycle/12/3200/1676.png", "status": null, "bytes": 0, "contentType": null, "error": "UND_ERR_CONNECT_TIMEOUT", "outsideSandboxRetry": "same result"},
    {"service": "CyclOSM z12", "url": "https://a.tile-cyclosm.openstreetmap.fr/cyclosm/12/3200/1676.png", "status": 200, "bytes": 56457, "contentType": "image/png", "imageSignature": "PNG"},
    {"service": "CyclOSM z16", "url": "https://a.tile-cyclosm.openstreetmap.fr/cyclosm/16/51210/26817.png", "status": 200, "bytes": 27187, "contentType": "image/png", "imageSignature": "PNG"},
    {"service": "OpenStreetMap standard", "url": "https://tile.openstreetmap.org/12/3200/1676.png", "status": null, "bytes": 0, "contentType": null, "error": "ECONNRESET", "outsideSandboxRetry": "same result"},
    {"service": "OpenTopoMap", "url": "https://a.tile.opentopomap.org/12/3200/1676.png", "status": null, "bytes": 0, "contentType": null, "error": "ECONNRESET", "outsideSandboxRetry": "same result"},
    {"service": "Stadia", "url": "https://tiles.stadiamaps.com/tiles/alidade_smooth/12/3200/1676.png", "status": null, "bytes": 0, "contentType": null, "error": "UND_ERR_CONNECT_TIMEOUT", "outsideSandboxRetry": "same result"},
    {"service": "Overpass kumi", "url": "https://overpass.kumi.systems/api/interpreter?data=%5Bout%3Ajson%5D%5Btimeout%3A10%5D%3Bnode%5Bnatural%3Dpeak%5D(31.045%2C101.303%2C31.048%2C101.307)%3Bout%20tags%20center%3B", "status": null, "bytes": 0, "contentType": null, "error": "TimeoutError", "timeoutMs": 18000, "outsideSandboxRetry": "same result", "requestIntervalGreaterThanMs": 6000},
    {"service": "Tianditu WMTS no key", "url": "https://t0.tianditu.gov.cn/img_w/wmts?SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER=img&STYLE=default&TILEMATRIXSET=w&FORMAT=tiles&TILEMATRIX=12&TILEROW=1676&TILECOL=3200", "status": 418, "bytes": 3223, "contentType": "text/html; charset=utf-8", "imageSignature": null, "responseDescription": "CloudWAF HTML; cannot infer an authentication-only cause from this status"}
  ],
  "servicePolicies": [
    {"service": "Clarity", "sourceUrl": "https://www.arcgis.com/home/item.html?id=ab399b847323487dba26809bf11ea91a", "verification": "ArcGIS REST item owner esri", "facts": ["Mature support since January 2022", "Scheduled retirement March 2028", "Layer not intended for offline tile export", "Archive imagery may be older than current World Imagery"]},
    {"service": "Esri", "sourceUrl": "https://goto.arcgis.com/termsofuse/viewsummary", "facts": ["Use requires applicable Esri software or ArcGIS Online subscription per service terms", "Attribution required", "Do not systematically harvest, redistribute or self-host basemap tiles"]},
    {"service": "CyclOSM hosting", "sourceUrl": "https://www.openstreetmap.fr/usage/", "facts": ["Visible attribution", "Public access without login or intranet restriction", "Nonprofit use", "Moderate traffic"], "deploymentDecision": "Not enabled on private login-protected site"},
    {"service": "OpenCycleMap", "sourceUrl": "https://www.thunderforest.com/docs/", "facts": ["API key required for Thunderforest services"]}
  ]
}