{
  "schemaVersion": 1,
  "productId": "synology-enterprise-series-hat5320-8t-8tb",
  "exactMpn": "HAT5320-8T",
  "runId": "buying-research-full-grok-20260911",
  "recordedAt": "2026-09-11T07:45:03.723720+00:00",
  "subject": {
    "sha256": "5ccc5ecb8b291631e28f2dacbda4885b04cff989899b4b20cf1701ebf14703b6",
    "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": "b03-grok",
      "label": "Grok 4.6",
      "provider": "xai",
      "model": "grok-4.6",
      "effort": "xhigh",
      "identityBasis": "Verified execution receipt",
      "sessionId": "01a08f1a-8bdb-719a-8f27-6afb7d842c67"
    },
    {
      "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-hdd_research",
      "role": "research-and-self-review",
      "scope": "research and self-review",
      "legacyLabel": "/root/hdd_research — research and self-review",
      "reviewedAt": "2026-09-10T02:57:11.326059+00:00",
      "subjectSha256": "2d0e1e2b07222bd3210004827d12f27c90e793d56781896528cf88fbf2c6e103",
      "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-other_nas_research",
      "role": "independent-evidence-review",
      "scope": "independent evidence review",
      "legacyLabel": "/root/other_nas_research — independent evidence review",
      "reviewedAt": "2026-09-10T02:57:11.326059+00:00",
      "subjectSha256": "2d0e1e2b07222bd3210004827d12f27c90e793d56781896528cf88fbf2c6e103",
      "subjectHashKind": "raw-file-sha256",
      "recordedAt": "2026-09-11T05:49:51.110527+00:00",
      "status": "historical-record",
      "evidenceRefs": [
        "reports/buying-research-all-products-20260910/owners/nas_other/reviews-by-nas-other/synology-enterprise-series-hat5320-8t-8tb.json"
      ]
    },
    {
      "id": "legacy-20260910-3",
      "actorId": "legacy-codex-root",
      "role": "integration-and-page-review",
      "scope": "integration and local page review",
      "legacyLabel": "/root — integration and local page review",
      "reviewedAt": "2026-09-10T02:57:11.326059+00:00",
      "subjectSha256": "2d0e1e2b07222bd3210004827d12f27c90e793d56781896528cf88fbf2c6e103",
      "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"
      ]
    },
    {
      "actorId": "b03-grok",
      "role": "research-and-self-check",
      "status": "completed",
      "subjectSha256": "5ccc5ecb8b291631e28f2dacbda4885b04cff989899b4b20cf1701ebf14703b6",
      "researchedAt": "2026-09-11"
    },
    {
      "actorId": "current-codex-root",
      "role": "independent-review",
      "status": "completed",
      "subjectSha256": "5ccc5ecb8b291631e28f2dacbda4885b04cff989899b4b20cf1701ebf14703b6",
      "reviewedAt": "2026-09-11T07:45:03.723720+00:00",
      "scope": "Exact official specifications/footnotes, distinction between direct tests and related/vendor evidence, reader projection and dated offers; explicit coverage gaps retained; no new index approval.",
      "evidenceChecks": [
        "Exact-MPN columns and relevant footnotes independently checked in current Synology Plus or Enterprise PDF: capacity, speed/cache, gas fill, MTBF/workload, power, environment and mass; other revisions not substituted.",
        "No exact original experiment claimed; official SA3600 twelve-drive RAID5/FIO marketing test remains vendor evidence, not independent testing.",
        "Reader specification projection and source references structurally pass; historical blocked merchant observations retain old timestamps; no fresh price fabricated."
      ]
    }
  ],
  "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-datasheet",
      "title": "Synology Enterprise Series HDD data sheet — April 2026",
      "url": "https://global.download.synology.com/download/Document/Hardware/DataSheet/Hard%20Drives/26-year/HAT5300/enu/Synology_HAT5300_Data_Sheet_enu.pdf",
      "kind": "official",
      "checkedAt": "2026-09-11",
      "locator": "Technical Specifications pages 4–5, exact HAT5320-8T column and shared family notes.",
      "readAction": "opened",
      "readScope": "HAT5320-8T column and footnote 1",
      "readingActorId": "b03-grok",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "192bb6fdd69bd956047cae95bfa611bd47e1b0711ba884bb837e888170b3c0cc",
          "mimeType": "application/pdf",
          "sourceUrl": "https://global.download.synology.com/download/Document/Hardware/DataSheet/Hard%20Drives/26-year/HAT5300/enu/Synology_HAT5300_Data_Sheet_enu.pdf",
          "description": "HAT5300 family datasheet Apr 24 2026"
        },
        {
          "sha256": "a9939734e08c4d5137cbed2a34b781393e4dfba86ebbd2b41e3dee54e542eb01",
          "mimeType": "text/plain",
          "sourceUrl": "https://global.download.synology.com/download/Document/Hardware/DataSheet/Hard%20Drives/26-year/HAT5300/enu/Synology_HAT5300_Data_Sheet_enu.pdf",
          "description": "pdftotext -layout of HAT5300 datasheet"
        }
      ]
    },
    {
      "id": "merchant-b-h-1",
      "title": "B&H: HAT5320-8T historical US listing",
      "url": "https://www.bhphotovideo.com/c/product/1917181-REG/synology_hat5320_8t_8tb_enterprise_hdd.html",
      "kind": "merchant",
      "checkedAt": "2026-08-30",
      "locator": "Catalog record dated 2026-08-30: exact MPN, new condition, seller status retailer, availability in-stock. Historical catalog reference price $649.99. Any usable 2026-09-10 main offer is recorded separately rather than overwriting this historical observation.",
      "readAction": "blocked",
      "readScope": "B&H challenge; 2026-08-30 price kept",
      "readingActorId": "b03-grok",
      "checkedOn": "2026-09-11",
      "materials": []
    },
    {
      "id": "merchant-adorama-2",
      "title": "Adorama: HAT5320-8T historical US listing",
      "url": "https://www.adorama.com/syhat53208t.html",
      "kind": "merchant",
      "checkedAt": "2026-08-31",
      "locator": "Catalog record dated 2026-08-31: exact MPN, new condition, seller status retailer, availability listed. No historical price adopted for this URL. Any usable 2026-09-10 main offer is recorded separately rather than overwriting this historical observation.",
      "readAction": "not-attempted",
      "readScope": "prior 403",
      "readingActorId": "b03-grok",
      "checkedOn": "2026-08-31",
      "materials": []
    },
    {
      "id": "merchant-amazon-3",
      "title": "Amazon: HAT5320-8T historical US listing",
      "url": "https://www.amazon.com/dp/B0FNQ4VT6L",
      "kind": "merchant",
      "checkedAt": "2026-08-31",
      "locator": "Catalog record dated 2026-08-31: exact MPN, new condition, seller status marketplace-unverified, availability listed. No historical price adopted for this URL. Any usable 2026-09-10 main offer is recorded separately rather than overwriting this historical observation.",
      "readAction": "blocked",
      "readScope": "challenge HTML",
      "readingActorId": "b03-grok",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "0567065d9eb2d3f66bd5a07633081cd027ecd5d4843b8bea0cea2544df0d61d5",
          "mimeType": "text/html",
          "sourceUrl": "https://www.amazon.com/dp/B0FNQ4VT6L",
          "description": "Amazon challenge"
        }
      ]
    },
    {
      "id": "merchant-best-buy-4",
      "title": "Best Buy: HAT5320-8T historical US listing",
      "url": "https://www.bestbuy.com/product/synology-hat5320-enterprise-series-8tb-3-5-sata-iii-internal-hard-drive/J36TG78YTC",
      "kind": "merchant",
      "checkedAt": "2026-08-31",
      "locator": "Catalog record dated 2026-08-31: exact MPN, new condition, seller status marketplace-unverified, availability listed. No historical price adopted for this URL. Any usable 2026-09-10 main offer is recorded separately rather than overwriting this historical observation.",
      "readAction": "not-attempted",
      "readScope": "prior blocked",
      "readingActorId": "b03-grok",
      "checkedOn": "2026-08-31",
      "materials": []
    },
    {
      "id": "policy-drive-compatibility",
      "title": "Synology drive compatibility policies FAQ",
      "url": "https://kb.synology.com/en-global/DSM/tutorial/Drive_compatibility_policies",
      "kind": "policy",
      "checkedAt": "2026-09-11",
      "locator": "FAQ on 2025-and-later storage compatibility; host-specific list still required",
      "readAction": "opened",
      "readScope": "FAQ/JS",
      "readingActorId": "b03-grok",
      "checkedOn": "2026-09-11",
      "materials": []
    },
    {
      "id": "official-series-page",
      "title": "Synology Enterprise Series 3.5-inch SATA HDD",
      "url": "https://www.synology.com/en-us/products/drives/hdd/enterprise-hat",
      "kind": "official",
      "checkedAt": "2026-09-11",
      "locator": "Series marketing, CMR/firmware claims, applied-model names in HTML",
      "readAction": "opened",
      "readScope": "series HTML",
      "readingActorId": "b03-grok",
      "checkedOn": "2026-09-11",
      "materials": [
        {
          "sha256": "119187fd3f42b7e07e8f0c601078b531d0704c3cb7526cb774f02fc8b5eff542",
          "mimeType": "text/html",
          "sourceUrl": "https://www.synology.com/en-us/products/drives/hdd/enterprise-hat",
          "description": "Enterprise series product page HTML"
        }
      ]
    }
  ],
  "coverage": {
    "productId": "synology-enterprise-series-hat5320-8t-8tb",
    "roundStatus": "部分完成",
    "dimensions": [
      {
        "id": "identity",
        "status": "已核实",
        "evidenceIds": [
          "ev-ds5300-hat5320-8t"
        ],
        "remainingFields": [],
        "nextStep": "Match HAT5320-8T not HAT5300-8T.",
        "reusedVsReread": "PDF column."
      },
      {
        "id": "specifications",
        "status": "部分覆盖",
        "evidenceIds": [
          "ev-ds5300-hat5320-8t"
        ],
        "remainingFields": [
          "URE, load/unload, startup, standby, acoustics"
        ],
        "nextStep": "Keep unknowns.",
        "reusedVsReread": "PDF reread."
      },
      {
        "id": "software-limits",
        "status": "部分覆盖",
        "evidenceIds": [
          "ev-ds5300-hat5320-8t"
        ],
        "remainingFields": [
          "Host HCL"
        ],
        "nextStep": "Check live list.",
        "reusedVsReread": "Series page."
      },
      {
        "id": "direct-measurement",
        "status": "已检索未找到",
        "evidenceIds": [],
        "remainingFields": [
          "Only vendor RAID5 footnote, not independent"
        ],
        "nextStep": "Do not place footnote 1 in reviews[].",
        "reusedVsReread": "Searched."
      },
      {
        "id": "related-experience",
        "status": "部分覆盖",
        "evidenceIds": [
          "ev-ds5300-hat5320-8t"
        ],
        "remainingFields": [
          "Older HAT5300-8T reviews are different MPN"
        ],
        "nextStep": "Keep HAT5300-8T out of this SKU.",
        "reusedVsReread": "Identified adjacent Amazon HAT5300-8T listing."
      },
      {
        "id": "us-new-pdp",
        "status": "部分覆盖",
        "evidenceIds": [],
        "remainingFields": [
          "B&H historical; Amazon challenge; Newegg search"
        ],
        "nextStep": "Browser pass B&H/Amazon.",
        "reusedVsReread": "No new live priced PDP."
      },
      {
        "id": "buying-judgment",
        "status": "已核实",
        "evidenceIds": [
          "ev-ds5300-hat5320-8t"
        ],
        "remainingFields": [],
        "nextStep": "Independent review.",
        "reusedVsReread": "Vendor claim bounded."
      },
      {
        "id": "video",
        "status": "已检索未找到",
        "evidenceIds": [],
        "remainingFields": [
          "No exact video"
        ],
        "nextStep": "Leave gap.",
        "reusedVsReread": "No ASR."
      }
    ]
  },
  "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."
  }
}