{
  "schemaVersion": 1,
  "productId": "buffalo-linkstation-soho-220-4tb",
  "exactMpn": "LS220D0402B",
  "runId": "buying-research-full-grok-20260911",
  "recordedAt": "2026-09-11T09:10:07.490392+00:00",
  "subject": {
    "sha256": "7c65c9bcde974cc060bd1f75dfec78755b0369d92fbb611df13543c079982a9b",
    "hashKind": "research-payload-sha256",
    "algorithm": "SHA-256 of UTF-8 JSON with recursively sorted object keys, no optional whitespace, Unicode unescaped; remove only top-level provenance, reviewedAt, reviewedBy, editorialStatus."
  },
  "actors": [
    {
      "id": "legacy-qnap_research",
      "label": "GPT-5.6 Sol",
      "provider": "openai",
      "model": "gpt-5.6-sol",
      "effort": "xhigh",
      "agentRoleName": "qnap_research",
      "identityBasis": "Verified dispatch model selection and matching dated run report; not a provider-side attestation.",
      "evidenceRefs": [
        "reports/buying-research-all-products-20260910/README.md"
      ]
    },
    {
      "id": "legacy-hdd_research",
      "label": "GPT-5.6 Sol",
      "provider": "openai",
      "model": "gpt-5.6-sol",
      "effort": "xhigh",
      "agentRoleName": "hdd_research",
      "identityBasis": "Verified dispatch model selection and matching dated run report; not a provider-side attestation.",
      "evidenceRefs": [
        "reports/buying-research-all-products-20260910/README.md"
      ]
    },
    {
      "id": "legacy-other_nas_research",
      "label": "GPT-5.6 Sol",
      "provider": "openai",
      "model": "gpt-5.6-sol",
      "effort": "xhigh",
      "agentRoleName": "other_nas_research",
      "identityBasis": "Verified dispatch model selection and matching dated run report; not a provider-side attestation.",
      "evidenceRefs": [
        "reports/buying-research-all-products-20260910/README.md"
      ]
    },
    {
      "id": "legacy-codex-root",
      "label": "GPT-6 (Codex)",
      "provider": "openai",
      "model": null,
      "modelFamily": "GPT-6",
      "effort": null,
      "agentRoleName": "root",
      "identityBasis": "Codex host model family confirmed; exact model variant/effort not preserved in the product audit. Unknown fields remain null.",
      "evidenceRefs": [
        "reports/buying-research-all-products-20260910/README.md",
        "reports/buying-research-all-products-20260910/browser-acceptance.json"
      ]
    },
    {
      "id": "b12-grok",
      "label": "Grok 4.6",
      "provider": "xai",
      "model": "grok-4.6",
      "effort": "xhigh",
      "identityBasis": "Verified execution receipt",
      "sessionId": "01a08f64-8015-76fd-b02a-078d22a2df29"
    },
    {
      "id": "current-codex-root",
      "label": "GPT-6 (Codex)",
      "provider": "openai",
      "modelFamily": "GPT-6",
      "model": null,
      "effort": null,
      "identityBasis": "Host model family confirmed; exact variant and effort not asserted."
    }
  ],
  "events": [
    {
      "id": "legacy-20260910-1",
      "actorId": "legacy-codex-root",
      "role": "research-and-self-review",
      "scope": "research and self-review",
      "legacyLabel": "/root — research and self-review",
      "reviewedAt": "2026-09-10T02:57:11.326059+00:00",
      "subjectSha256": "eb5ac6d58d29173e0f25132d41fd6e306d96ec1a537a9b00744c2b9571af0916",
      "subjectHashKind": "raw-file-sha256",
      "recordedAt": "2026-09-11T05:49:51.110527+00:00",
      "status": "historical-record",
      "evidenceRefs": [
        "reports/buying-research-all-products-20260910/editorial-decisions.json"
      ]
    },
    {
      "id": "legacy-20260910-2",
      "actorId": "legacy-qnap_research",
      "role": "independent-evidence-review",
      "scope": "independent evidence review",
      "legacyLabel": "/root/qnap_research — independent evidence review",
      "reviewedAt": "2026-09-10T02:57:11.326059+00:00",
      "subjectSha256": "eb5ac6d58d29173e0f25132d41fd6e306d96ec1a537a9b00744c2b9571af0916",
      "subjectHashKind": "raw-file-sha256",
      "recordedAt": "2026-09-11T05:49:51.110527+00:00",
      "status": "historical-record",
      "evidenceRefs": [
        "reports/buying-research-all-products-20260910/reviews-by-qnap-buffalo/buffalo-linkstation-soho-220-4tb.json"
      ]
    },
    {
      "actorId": "b12-grok",
      "role": "research-and-self-check",
      "status": "completed",
      "subjectSha256": "884bbc06ed7484ad0ec2deb6486ddef49691dda012d7c6041b405d2c6f9cd363",
      "researchedAt": "2026-09-11"
    },
    {
      "actorId": "current-codex-root",
      "role": "editorial-correction",
      "status": "completed",
      "inputSubjectSha256": "884bbc06ed7484ad0ec2deb6486ddef49691dda012d7c6041b405d2c6f9cd363",
      "subjectSha256": "7c65c9bcde974cc060bd1f75dfec78755b0369d92fbb611df13543c079982a9b",
      "changes": [
        {
          "field": "specifications",
          "change": "Added SoHo200 simple-logical-recovery registration and coverage boundary from original overview."
        },
        {
          "field": "reviews/audit",
          "change": "Recovered original TweakTown9222 article and three DiskBench screenshots; replaced rounded values with exact chart values and added two-file rates plus method."
        }
      ]
    },
    {
      "actorId": "current-codex-root",
      "role": "independent-review",
      "status": "completed",
      "subjectSha256": "7c65c9bcde974cc060bd1f75dfec78755b0369d92fbb611df13543c079982a9b",
      "reviewedAt": "2026-09-11T09:10:07.490392+00:00",
      "scope": "Exact SKU and capacity specifications; consumer versus SoHo warranty and documentation boundaries; original test conditions and available figures; primary US new-item offers and honest residual coverage.",
      "evidenceChecks": [
        "Parent read complete original current SoHo200/700 specifications, overview, footnotes and downloads; reused full LS700 consumer table/KB6060/warranty checks and visually read original consumer PDF columns.",
        "Parent read LS700 manual relevant USB, LVM, backup and no-hot-swap sections; March2026 p.80 Time Machine conflict is retained instead of unsupported compatibility promise.",
        "Parent read full PCMag4TB body; original SoHo7204TB chart20–23 directions independently verified; related samples are not attributed to larger capacities. TweakTownSoHo2204TB full original and three charts recovered and read this pass.",
        "All four Amazon primary boxes, exact model identity and selected seller checked in original captures; Newegg primary panes reused from independently verified correction evidence. Dated merchant observations are not refreshed without capture.",
        "Unknown current HDD revisions, video ASR/frames and missing exact-capacity measurements remain explicit; no new index or scoring approval."
      ]
    }
  ],
  "sourceOrigins": {
    "status": "not-inferred-per-source",
    "explanation": "The recorded page researchers/reviewers do not prove who originally discovered or reread each inherited source. Source-level historical author attribution is unknown unless a specific source audit establishes it."
  },
  "sources": [
    {
      "id": "official-spec",
      "title": "Buffalo LinkStation SoHo 220 4TB official specifications",
      "url": "https://buffaloamericas.com/products/linkstation-soho-series-desktop",
      "kind": "official",
      "checkedAt": "2026-09-11",
      "locator": "Specifications tables → LS220D0402B / LinkStation SoHo 220 column; Overview; Downloads",
      "readAction": "opened",
      "readScope": "Re-read US family specification tables for this MPN column, overview, downloads/firmware notes.",
      "readingActorId": "b12-grok",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "0e7a8dbc76317c05c7e4801089d1243530646d9fa65ea13460ccad2a03d3b8ef",
          "mimeType": "text/html",
          "sourceUrl": "https://buffaloamericas.com/products/linkstation-soho-series-desktop",
          "description": "Official family HTML"
        }
      ]
    },
    {
      "id": "official-mac",
      "title": "Buffalo macOS 26 Time Machine compatibility",
      "url": "https://buffaloamericas.com/knowledge-base/KB6060",
      "kind": "policy",
      "checkedAt": "2026-09-11",
      "locator": "KB6060 → Model Series Compatibility; article updated 2025-10-13",
      "readAction": "opened",
      "readScope": "KB6060 updated 2025-10-13: LS700 fully compatible with macOS 26 Time Machine; LS200 not compatible, firmware investigation in progress.",
      "readingActorId": "b12-grok",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "7be1d140c3d2cc7ed360ec258131868c42cab96cb93c14806fcf7826bab884d4",
          "mimeType": "text/html",
          "sourceUrl": "https://buffaloamericas.com/knowledge-base/KB6060",
          "description": "KB6060 HTML"
        }
      ]
    },
    {
      "id": "official-warranty",
      "title": "Buffalo Americas warranty terms",
      "url": "https://buffaloamericas.com/warranty/warranty-terms",
      "kind": "policy",
      "checkedAt": "2026-09-11",
      "locator": "NAS warranty table → LS200/LS700 or SoHo; proof of purchase and region restrictions",
      "readAction": "opened",
      "readScope": "NAS warranty table: LS210D/LS220D/LS710D/LS720D 2-year; LS220DB/LS720DB SoHo 3-year.",
      "readingActorId": "b12-grok",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "66f8a514161aa8fc8916627f090af67cb5fe56a9c2ae729eed4d329c7309099f",
          "mimeType": "text/html",
          "sourceUrl": "https://buffaloamericas.com/warranty/warranty-terms",
          "description": "Warranty terms HTML"
        }
      ]
    },
    {
      "id": "review-tweaktown",
      "title": "LinkStation SOHO 4TB NAS Review",
      "url": "https://www.tweaktown.com/reviews/9222/buffalo-linkstation-soho-4tb-nas-review/index.html",
      "kind": "review",
      "checkedAt": "2026-09-11",
      "locator": "Exact manufacturer number; installed drives; performance test paragraphs",
      "readAction": "opened",
      "readScope": "Parent read full original body and figures20,21,22, including exact DiskBench timings, two-file rates and test-system list.",
      "readingActorId": "current-codex-root",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "371c7c86f49271347b7c47f54d474b44a9f5c488656a6c1afcbe545b4a9de8ec",
          "sourceUrl": "https://www.tweaktown.com/reviews/9222/buffalo-linkstation-soho-4tb-nas-review/index.html",
          "description": "Original article web capture"
        },
        {
          "sha256": "128cb4b0d0185700cb37497f453b6ca56d0dab1db96f72ed2ce24d0862c16266",
          "sourceUrl": "https://static.tweaktown.com/content/9/2/9222_20_buffalo-linkstation-soho-4tb-nas-review.png",
          "description": "Original DiskBench screenshot visually read"
        },
        {
          "sha256": "96ead7e458bd2c3036ad1e1f4610f4d15ac66a6698d5a869b8d169aeefff4495",
          "sourceUrl": "https://static.tweaktown.com/content/9/2/9222_21_buffalo-linkstation-soho-4tb-nas-review.png",
          "description": "Original DiskBench screenshot visually read"
        },
        {
          "sha256": "0847390176e32cc28b4c5d33506ac8361f6e18a4472977613fbe405abb96fbd8",
          "sourceUrl": "https://static.tweaktown.com/content/9/2/9222_22_buffalo-linkstation-soho-4tb-nas-review.png",
          "description": "Original DiskBench screenshot visually read"
        }
      ]
    },
    {
      "id": "merchant-newegg",
      "title": "Newegg — LS220D0402B",
      "url": "https://www.newegg.com/buffalo/p/2HT-001E-00017",
      "kind": "merchant",
      "checkedAt": "2026-09-11",
      "locator": "Model and current .product-buy-box: Sold by Newegg, displayed USD price and Add to cart. ItemDetail seller agrees where provided; other-seller popovers are excluded.",
      "readAction": "opened",
      "readScope": "Buy box $327.99 Sold by Newegg.",
      "readingActorId": "b12-grok",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "3f368f4f132ec7ba04065e39a6fb96c6666da13e6d6ef983e2c35e5dcd2f74e3",
          "mimeType": "text/html",
          "sourceUrl": "https://www.newegg.com/buffalo/p/2HT-001E-00017",
          "description": "Newegg PDP HTML"
        }
      ]
    },
    {
      "id": "merchant-cdw",
      "title": "CDW LS220D0402B",
      "url": "https://www.cdw.com/product/buffalo-linkstation-for-soho-ls220d0402b-nas-server-4-tb/5864438",
      "kind": "merchant",
      "checkedAt": "2026-09-11",
      "locator": "Mfg # LS220D0402B; $405.99; In Stock; Add to Cart.",
      "readAction": "opened",
      "readScope": "CDW PDP; exact MPN; $405.99; In Stock.",
      "readingActorId": "b12-grok",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "5a713ef54a564598838caaa13cdb72fdf4b41c1b08bfa86c8ab34ad65f71bc98",
          "mimeType": "text/html",
          "sourceUrl": "https://www.cdw.com/product/buffalo-linkstation-for-soho-ls220d0402b-nas-server-4-tb/5864438",
          "description": "CDW PDP HTML"
        }
      ]
    },
    {
      "id": "related-sth",
      "title": "ServeTheHome LS220D empty chassis with user WD Red 4TB",
      "url": "https://www.servethehome.com/buffalo-ls220d-2-drive-nas-review/",
      "kind": "review",
      "checkedAt": "2026-09-11",
      "locator": "William Harmon 2016; user-installed two WD Red 4TB; ATTO ~55 MB/s write; idle 12.413 W / peak 15.424 W Yokogawa; NASPT charts unread as images.",
      "readAction": "opened",
      "readScope": "Full STH article. Empty LS220D, user WD Red 4TB, not factory SoHo 4TB. ATTO prose + Yokogawa power. NASPT/ATTO/sound charts not independently parsed beyond captions.",
      "readingActorId": "b12-grok",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "b164f3523cd6ebbb95dc7319d0cccddf4d834fd6f77b85199ae725a8b311b781",
          "mimeType": "text/html",
          "sourceUrl": "https://www.servethehome.com/buffalo-ls220d-2-drive-nas-review/",
          "description": "STH HTML"
        },
        {
          "sha256": "33c5de2a4e7e890f135bd5811af2b95a71c07a1da6bf56d18a76676b7d02ab84",
          "mimeType": "text/plain",
          "sourceUrl": "https://www.servethehome.com/buffalo-ls220d-2-drive-nas-review/",
          "description": "Stripped STH text"
        }
      ]
    }
  ],
  "coverage": {
    "productId": "buffalo-linkstation-soho-220-4tb",
    "roundStatus": "本轮完成",
    "reviewCount": 1,
    "offerCount": 2,
    "dimensions": [
      {
        "id": "identity",
        "status": "已核实",
        "evidence": "Official US table lists LS220D0402B.",
        "evidenceIds": [
          "ev-official-spec"
        ],
        "gaps": "Current HDD MPN inside the carton is still unknown.",
        "nextStep": "If a retailer photo of the installed drive appears, record the MPN without assuming it for all inventory.",
        "thisRound": "Re-read official HTML/PDF.",
        "reused": "Baseline identity rows retained."
      },
      {
        "id": "specifications",
        "status": "已核实",
        "evidence": "40 baseline rows preserved in order; official column re-checked.",
        "evidenceIds": [
          "ev-official-spec"
        ],
        "gaps": "LS710 web vs PDF maximum power conflict kept where present; SoHo Internal AC vs AC adapter in box kept.",
        "nextStep": "Do not collapse conflicting power/PSU wording.",
        "thisRound": "PDF + HTML.",
        "reused": "Full specification table."
      },
      {
        "id": "software-limits",
        "status": "已核实",
        "evidence": "KB6060 macOS 26; closed system/no Docker; firmware 2.04/1.86 as in baseline rows.",
        "evidenceIds": [
          "ev-official-spec"
        ],
        "gaps": "Internal filesystem still not named. LS700 manual was not used for LS200.",
        "nextStep": "None unless Buffalo publishes a filesystem statement.",
        "thisRound": "KB6060 and download table.",
        "reused": "Baseline software rows."
      },
      {
        "id": "direct-measurement",
        "status": "部分覆盖",
        "evidence": "See evidence items with applicability direct.",
        "evidenceIds": [
          "ev-tweaktown-ls220d0402b"
        ],
        "gaps": "TweakTown 9222 live HTML still 403; SMB numbers from saved extract. Original 9222 chart images were not supplied this round.",
        "nextStep": "Keep searching exact MPN; do not copy other-capacity numbers into reviews[].",
        "thisRound": "Did not label 9222 charts as read.",
        "reused": "Baseline TweakTown on SoHo 4TB where present."
      },
      {
        "id": "related-experience",
        "status": "部分覆盖",
        "evidence": "Related family tests kept out of reviews[] unless exact.",
        "evidenceIds": [
          "ev-sth-ls220d-empty"
        ],
        "gaps": "Related numbers must stay labeled.",
        "nextStep": "Parent may supply TweakTown figure renders / Lon.TV frames.",
        "thisRound": "Opened related originals or search extracts.",
        "reused": "Prior candidate URLs were not dropped."
      },
      {
        "id": "us-new-pdp",
        "status": "部分覆盖",
        "evidence": "2 offers after this round.",
        "evidenceIds": [],
        "gaps": "B&H mostly HTTP 403; Best Buy often timeout/unknown price; some marketplace sellers.",
        "nextStep": "Parent browser capture for B&H/Best Buy if needed.",
        "thisRound": "Amazon/Newegg/CDW HTML as applicable.",
        "reused": "Historical Best Buy unknown-price PDPs where still valid."
      },
      {
        "id": "buying-judgment",
        "status": "已核实",
        "evidence": "Fit still file-sharing appliance; RAID 1 capacity planning; no apps/containers.",
        "evidenceIds": [
          "ev-official-spec"
        ],
        "gaps": "Exact HDD revision and acoustics.",
        "nextStep": "Independent review of new PCMag inclusion on 720-4tb.",
        "thisRound": "Judgment synced to new measurements where exact.",
        "reused": "Baseline audience/warranty framing."
      },
      {
        "id": "video",
        "status": "已检索未找到",
        "evidence": "No product-specific original video located for this SKU.",
        "evidenceIds": [],
        "gaps": "No must-watch video identified.",
        "nextStep": "None unless a new exact-SKU video appears.",
        "thisRound": "Search did not surface an exact-SKU original video that was opened.",
        "reused": "2026-09-10 pending Lon.TV candidate was not ignored."
      }
    ],
    "roundNote": "Research-and-self-check draft; independentReviewStatus pending. Completed work is not full data coverage."
  },
  "retiredRecords": [],
  "originalMaterial": {
    "status": "per-source-records",
    "note": "Available original captures are retained locally with SHA-256. Public records contain source URLs and locators; they do not reproduce full third-party content. An absent capture is not a claim of a saved original."
  }
}