{
  "purpose": "A targeted check of whether bibliographic URLs could be retrieved. Source content and research conclusions were not evaluated. This report is retained from the final Russian edition.",
  "input_files": [
    "04_Sources/Source_Register.json",
    "04_Sources/Source_Metadata.json"
  ],
  "method": "All unique HTTP(S) URLs were collected from string fields in the two Russian JSON files. Each was submitted to web.open; four inconclusive responses were retried in the same way. The tool did not provide a reliable origin-server HTTP status for every response; http_status_from_origin remains null.",
  "limits": "content_received records content retrieved through the tool during the earlier session, not permanent availability, byte identity, or an assessment of the source. A tool error, DisabledError, a blocked opening, or an empty extraction does not establish that a page is absent. For the DOI, (500) appeared in the tool’s redirect-error message; it was not treated as the original DOI address’s HTTP status. “today” in a raw result string belongs to that historical response, not to the English translation.",
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  "counts": {
    "content_received": 9,
    "tool_disabled": 3,
    "tool_open_blocked": 19,
    "response_without_extracted_content": 1
  },
  "entries": [
    {
      "url": "https://aclanthology.org/2020.acl-main.463/",
      "observed_status": "content_received",
      "access": "Content retrieved through the tool during the recorded pass.",
      "result": "Crawled: today; Content type: text/html; Total lines: 244",
      "http_status_from_origin": null,
      "tool_error_detail": null,
      "content_type": "text/html",
      "extracted_lines": 244,
      "attempts": [
        {
          "observed_status": "content_received",
          "result": "Crawled: today; Content type: text/html; Total lines: 244",
          "status_explanation": "Content retrieved through the tool during the recorded pass."
        }
      ],
      "status_explanation": "Content retrieved through the tool during the recorded pass."
    },
    {
      "url": "https://arxiv.org/abs/0808.0437v1",
      "observed_status": "tool_disabled",
      "access": "Retrieval unavailable: the tool returned DisabledError. Page availability was not established.",
      "result": "Failed to fetch https://arxiv.org/abs/0808.0437v1: DisabledError",
      "http_status_from_origin": null,
      "tool_error_detail": "Failed to fetch https://arxiv.org/abs/0808.0437v1: DisabledError",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_disabled",
          "result": "Failed to fetch https://arxiv.org/abs/0808.0437v1: DisabledError",
          "status_explanation": "Retrieval unavailable: the tool returned DisabledError. Page availability was not established."
        }
      ],
      "status_explanation": "Retrieval unavailable: the tool returned DisabledError. Page availability was not established."
    },
    {
      "url": "https://arxiv.org/abs/2510.24797v2",
      "observed_status": "content_received",
      "access": "Content retrieved through the tool during the recorded pass.",
      "result": "Crawled: today; Content type: text/html; Total lines: 165",
      "http_status_from_origin": null,
      "tool_error_detail": null,
      "content_type": "text/html",
      "extracted_lines": 165,
      "attempts": [
        {
          "observed_status": "content_received",
          "result": "Crawled: today; Content type: text/html; Total lines: 165",
          "status_explanation": "Content retrieved through the tool during the recorded pass."
        }
      ],
      "status_explanation": "Content retrieved through the tool during the recorded pass."
    },
    {
      "url": "https://arxiv.org/html/0808.0437v1",
      "observed_status": "tool_disabled",
      "access": "Retrieval unavailable: the tool returned DisabledError. Page availability was not established.",
      "result": "Failed to fetch https://arxiv.org/html/0808.0437v1: DisabledError",
      "http_status_from_origin": null,
      "tool_error_detail": "Failed to fetch https://arxiv.org/html/0808.0437v1: DisabledError",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_disabled",
          "result": "Failed to fetch https://arxiv.org/html/0808.0437v1: DisabledError",
          "status_explanation": "Retrieval unavailable: the tool returned DisabledError. Page availability was not established."
        }
      ],
      "status_explanation": "Retrieval unavailable: the tool returned DisabledError. Page availability was not established."
    },
    {
      "url": "https://arxiv.org/html/cs/9906002",
      "observed_status": "content_received",
      "access": "Content retrieved through the tool during the recorded pass.",
      "result": "Crawled: today; Content type: text/html; Total lines: 322",
      "http_status_from_origin": null,
      "tool_error_detail": null,
      "content_type": "text/html",
      "extracted_lines": 322,
      "attempts": [
        {
          "observed_status": "content_received",
          "result": "Crawled: today; Content type: text/html; Total lines: 322",
          "status_explanation": "Content retrieved through the tool during the recorded pass."
        }
      ],
      "status_explanation": "Content retrieved through the tool during the recorded pass."
    },
    {
      "url": "https://arxiv.org/pdf/0808.0437v1",
      "observed_status": "tool_disabled",
      "access": "Retrieval unavailable: the tool returned DisabledError. Page availability was not established.",
      "result": "Failed to fetch https://arxiv.org/pdf/0808.0437v1: DisabledError",
      "http_status_from_origin": null,
      "tool_error_detail": "Failed to fetch https://arxiv.org/pdf/0808.0437v1: DisabledError",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_internal_error",
          "result": "Internal Error; подробность причины не возвращена",
          "status_explanation": "The tool returned an internal error without further details of its cause."
        },
        {
          "observed_status": "tool_disabled",
          "result": "Failed to fetch https://arxiv.org/pdf/0808.0437v1: DisabledError",
          "status_explanation": "Retrieval unavailable: the tool returned DisabledError. Page availability was not established."
        }
      ],
      "status_explanation": "Retrieval unavailable: the tool returned DisabledError. Page availability was not established."
    },
    {
      "url": "https://beforeword.xyz/research/evaluation/",
      "observed_status": "tool_open_blocked",
      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/evaluation/ is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/evaluation/ is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_internal_error",
          "result": "Internal Error; подробность причины не возвращена",
          "status_explanation": "The tool returned an internal error without further details of its cause."
        },
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/evaluation/ is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://beforeword.xyz/research/files/did-you-understand-me-ru.pdf",
      "observed_status": "tool_open_blocked",
      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/files/did-you-understand-me-ru.pdf is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/files/did-you-understand-me-ru.pdf is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_internal_error",
          "result": "Internal Error; подробность причины не возвращена",
          "status_explanation": "The tool returned an internal error without further details of its cause."
        },
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/files/did-you-understand-me-ru.pdf is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://beforeword.xyz/research/files/evaluation/manuscript/2026-09-02/Otsenka_Ne_Pokidaet_Zapis_RU.pdf",
      "observed_status": "tool_open_blocked",
      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/files/evaluation/manuscript/2026-09-02/Otsenka_Ne_Pokidaet_Zapis_RU.pdf is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/files/evaluation/manuscript/2026-09-02/Otsenka_Ne_Pokidaet_Zapis_RU.pdf is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/files/evaluation/manuscript/2026-09-02/Otsenka_Ne_Pokidaet_Zapis_RU.pdf is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://beforeword.xyz/research/files/full-stop/full-stop-presented-record-boundary-ru.pdf?v=558c81c426bf",
      "observed_status": "tool_open_blocked",
      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/files/full-stop/full-stop-presented-record-boundary-ru.pdf?v=558c81c426bf is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/files/full-stop/full-stop-presented-record-boundary-ru.pdf?v=558c81c426bf is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/files/full-stop/full-stop-presented-record-boundary-ru.pdf?v=558c81c426bf is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://beforeword.xyz/research/files/inscription-and-reading/v13/inscription-and-reading-paper-ru.pdf",
      "observed_status": "tool_open_blocked",
      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/files/inscription-and-reading/v13/inscription-and-reading-paper-ru.pdf is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/files/inscription-and-reading/v13/inscription-and-reading-paper-ru.pdf is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/files/inscription-and-reading/v13/inscription-and-reading-paper-ru.pdf is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://beforeword.xyz/research/files/mathematics-phases-0-7/source-7.2.1/Rocket_Does_Not_Prove_Mathematics_Phase6_RU.pdf",
      "observed_status": "tool_open_blocked",
      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/files/mathematics-phases-0-7/source-7.2.1/Rocket_Does_Not_Prove_Mathematics_Phase6_RU.pdf is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/files/mathematics-phases-0-7/source-7.2.1/Rocket_Does_Not_Prove_Mathematics_Phase6_RU.pdf is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/files/mathematics-phases-0-7/source-7.2.1/Rocket_Does_Not_Prove_Mathematics_Phase6_RU.pdf is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://beforeword.xyz/research/files/no-authority-in-the-output/manuscript/2026-08-30/No_Authority_in_the_Output_RU.pdf",
      "observed_status": "tool_open_blocked",
      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/files/no-authority-in-the-output/manuscript/2026-08-30/No_Authority_in_the_Output_RU.pdf is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/files/no-authority-in-the-output/manuscript/2026-08-30/No_Authority_in_the_Output_RU.pdf is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/files/no-authority-in-the-output/manuscript/2026-08-30/No_Authority_in_the_Output_RU.pdf is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://beforeword.xyz/research/files/reading-as-enclosure/v1.2.3/Reading_as_Enclosure_RU_v1.2.3.pdf",
      "observed_status": "tool_open_blocked",
      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/files/reading-as-enclosure/v1.2.3/Reading_as_Enclosure_RU_v1.2.3.pdf is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/files/reading-as-enclosure/v1.2.3/Reading_as_Enclosure_RU_v1.2.3.pdf is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/files/reading-as-enclosure/v1.2.3/Reading_as_Enclosure_RU_v1.2.3.pdf is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://beforeword.xyz/research/files/record-boundaries-ru.pdf",
      "observed_status": "tool_open_blocked",
      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/files/record-boundaries-ru.pdf is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/files/record-boundaries-ru.pdf is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/files/record-boundaries-ru.pdf is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://beforeword.xyz/research/files/view-from-outside-ru.pdf",
      "observed_status": "tool_open_blocked",
      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/files/view-from-outside-ru.pdf is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/files/view-from-outside-ru.pdf is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/files/view-from-outside-ru.pdf is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://beforeword.xyz/research/full-stop/",
      "observed_status": "tool_open_blocked",
      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/full-stop/ is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/full-stop/ is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/full-stop/ is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://beforeword.xyz/research/inscription-and-reading/",
      "observed_status": "tool_open_blocked",
      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/inscription-and-reading/ is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/inscription-and-reading/ is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/inscription-and-reading/ is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://beforeword.xyz/research/mathematics-phases-0-7/",
      "observed_status": "tool_open_blocked",
      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/mathematics-phases-0-7/ is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/mathematics-phases-0-7/ is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/mathematics-phases-0-7/ is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://beforeword.xyz/research/no-authority-in-the-output/",
      "observed_status": "tool_open_blocked",
      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/no-authority-in-the-output/ is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/no-authority-in-the-output/ is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/no-authority-in-the-output/ is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
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      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/reading-as-enclosure/ is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/reading-as-enclosure/ is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
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        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/reading-as-enclosure/ is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
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      "result": "URL https://beforeword.xyz/research/record-boundaries/ is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/record-boundaries/ is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/record-boundaries/ is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://beforeword.xyz/research/understanding/",
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      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/understanding/ is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/understanding/ is not safe to open (non-retryable error)",
      "content_type": null,
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        {
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          "result": "URL https://beforeword.xyz/research/understanding/ is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
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    {
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      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "URL https://beforeword.xyz/research/view-from-outside/ is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "URL https://beforeword.xyz/research/view-from-outside/ is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_open_blocked",
          "result": "URL https://beforeword.xyz/research/view-from-outside/ is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://doi.org/10.1097/ACM.0000000000000388",
      "observed_status": "tool_open_blocked",
      "access": "Opening blocked by the tool. Page availability was not established.",
      "result": "Failed to fetch https://doi.org/10.1097/ACM.0000000000000388: (500) Redirected to https://oup.silverchair-cdn.com/article-minimal/8351279 which is not safe to open (non-retryable error)",
      "http_status_from_origin": null,
      "tool_error_detail": "Failed to fetch https://doi.org/10.1097/ACM.0000000000000388: (500) Redirected to https://oup.silverchair-cdn.com/article-minimal/8351279 which is not safe to open (non-retryable error)",
      "content_type": null,
      "extracted_lines": null,
      "attempts": [
        {
          "observed_status": "tool_open_blocked",
          "result": "Failed to fetch https://doi.org/10.1097/ACM.0000000000000388: (500) Redirected to https://oup.silverchair-cdn.com/article-minimal/8351279 which is not safe to open (non-retryable error)",
          "status_explanation": "Opening blocked by the tool. Page availability was not established."
        }
      ],
      "status_explanation": "Opening blocked by the tool. Page availability was not established."
    },
    {
      "url": "https://educationaldevelopment.uams.edu/wp-content/uploads/sites/57/2025/01/12-OBrien-standards_for_reporting_qualitative_research.pdf",
      "observed_status": "content_received",
      "access": "Content retrieved through the tool during the recorded pass.",
      "result": "Crawled: today; Content type: application/pdf; Number of pages: 7; Total lines: 880",
      "http_status_from_origin": null,
      "tool_error_detail": null,
      "content_type": "application/pdf",
      "extracted_lines": 880,
      "attempts": [
        {
          "observed_status": "content_received",
          "result": "Crawled: today; Content type: application/pdf; Number of pages: 7; Total lines: 880",
          "status_explanation": "Content retrieved through the tool during the recorded pass."
        }
      ],
      "status_explanation": "Content retrieved through the tool during the recorded pass."
    },
    {
      "url": "https://pubmed.ncbi.nlm.nih.gov/17576282/",
      "observed_status": "response_without_extracted_content",
      "access": "The tool recorded a response but extracted no page content.",
      "result": "Content type: text/html; Total lines: 0",
      "http_status_from_origin": null,
      "tool_error_detail": null,
      "content_type": "text/html",
      "extracted_lines": 0,
      "attempts": [
        {
          "observed_status": "response_without_extracted_content",
          "result": "Content type: text/html; Total lines: 0",
          "status_explanation": "The tool recorded a response but extracted no page content."
        },
        {
          "observed_status": "response_without_extracted_content",
          "result": "Content type: text/html; Total lines: 0",
          "status_explanation": "The tool recorded a response but extracted no page content."
        }
      ],
      "status_explanation": "The tool recorded a response but extracted no page content."
    },
    {
      "url": "https://pubmed.ncbi.nlm.nih.gov/21071632/?dopt=Abstract",
      "observed_status": "content_received",
      "access": "Content retrieved through the tool during the recorded pass.",
      "result": "Crawled: today; Content type: text/html; Total lines: 451",
      "http_status_from_origin": null,
      "tool_error_detail": null,
      "content_type": "text/html",
      "extracted_lines": 451,
      "attempts": [
        {
          "observed_status": "content_received",
          "result": "Crawled: today; Content type: text/html; Total lines: 451",
          "status_explanation": "Content retrieved through the tool during the recorded pass."
        }
      ],
      "status_explanation": "Content retrieved through the tool during the recorded pass."
    },
    {
      "url": "https://pubmed.ncbi.nlm.nih.gov/26301795/",
      "observed_status": "content_received",
      "access": "Content retrieved through the tool during the recorded pass.",
      "result": "Crawled: today; Content type: text/html; Total lines: 370",
      "http_status_from_origin": null,
      "tool_error_detail": null,
      "content_type": "text/html",
      "extracted_lines": 370,
      "attempts": [
        {
          "observed_status": "content_received",
          "result": "Crawled: today; Content type: text/html; Total lines: 370",
          "status_explanation": "Content retrieved through the tool during the recorded pass."
        }
      ],
      "status_explanation": "Content retrieved through the tool during the recorded pass."
    },
    {
      "url": "https://www.asc.ohio-state.edu/roberts.21/NYU/Kaplan.demonstratives.pdf",
      "observed_status": "content_received",
      "access": "Content retrieved through the tool during the recorded pass.",
      "result": "Crawled: today; Content type: application/pdf; Number of pages: 68; Total lines: 4601",
      "http_status_from_origin": null,
      "tool_error_detail": null,
      "content_type": "application/pdf",
      "extracted_lines": 4601,
      "attempts": [
        {
          "observed_status": "content_received",
          "result": "Crawled: today; Content type: application/pdf; Number of pages: 68; Total lines: 4601",
          "status_explanation": "Content retrieved through the tool during the recorded pass."
        }
      ],
      "status_explanation": "Content retrieved through the tool during the recorded pass."
    },
    {
      "url": "https://www.slovari.ru/default.aspx?0a0=1744&p=5315&s=0",
      "observed_status": "content_received",
      "access": "Content retrieved through the tool during the recorded pass.",
      "result": "Crawled: today; Content type: text/html; Total lines: 155",
      "http_status_from_origin": null,
      "tool_error_detail": null,
      "content_type": "text/html",
      "extracted_lines": 155,
      "attempts": [
        {
          "observed_status": "content_received",
          "result": "Crawled: today; Content type: text/html; Total lines: 155",
          "status_explanation": "Content retrieved through the tool during the recorded pass."
        }
      ],
      "status_explanation": "Content retrieved through the tool during the recorded pass."
    },
    {
      "url": "https://www.slovari.ru/default.aspx?p=167&s=0",
      "observed_status": "content_received",
      "access": "Content retrieved through the tool during the recorded pass.",
      "result": "Crawled: today; Content type: text/html; Total lines: 64",
      "http_status_from_origin": null,
      "tool_error_detail": null,
      "content_type": "text/html",
      "extracted_lines": 64,
      "attempts": [
        {
          "observed_status": "content_received",
          "result": "Crawled: today; Content type: text/html; Total lines: 64",
          "status_explanation": "Content retrieved through the tool during the recorded pass."
        }
      ],
      "status_explanation": "Content retrieved through the tool during the recorded pass."
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  "recorded_on": "2026-09-12",
  "input_files_note": "The paths above identify the corresponding English metadata files. The recorded retrieval pass used their Russian predecessors in the final Russian package; it was not rerun on this edition.",
  "english_edition_note": "The report date, counts, addresses, raw results, and attempts are retained. English status explanations were added; no retrieval or substantive source review was repeated for this English edition."
}