{
  "research_date": "2026-09-11",
  "scope": "Documentary research snapshot; unknown values remain null. Not live availability or account testing.",
  "records": [
    {
      "decision_id": "DE01",
      "decision": "Original PlayStation: CD distribution",
      "documented_choice": "Sony describes more responsive manufacture/replenishment",
      "developer_consequence_interpretation": "Lower inventory exposure is a plausible publisher advantage",
      "player_consequence_interpretation": "More varied disc-based work could reach the same hardware audience",
      "limit": "No numerical attribution of sales to CD economics",
      "source_ids": "H01;H04"
    },
    {
      "decision_id": "DE02",
      "decision": "PS2: DVD plus old-library continuity",
      "documented_choice": "New machine also performs a household media task",
      "developer_consequence_interpretation": "Existing audience and new production coexist",
      "player_consequence_interpretation": "Upgrade need not discard the earlier library",
      "limit": "Compatibility and DVD contribution are mechanisms, not measured causal shares",
      "source_ids": "H09"
    },
    {
      "decision_id": "DE03",
      "decision": "PSP / PSPgo",
      "documented_choice": "Portable media; later no UMD drive",
      "developer_consequence_interpretation": "A separate use setting and distribution route",
      "player_consequence_interpretation": "Not every physical portable purchase transfers to a download-only device",
      "limit": "Regional software communities matter; no uniform worldwide outcome inferred",
      "source_ids": "H11;H07;N46"
    },
    {
      "decision_id": "DE04",
      "decision": "PS3: specialized architecture and Blu-ray",
      "documented_choice": "Expensive multi-purpose launch proposition",
      "developer_consequence_interpretation": "Capability does not eliminate development-learning costs",
      "player_consequence_interpretation": "US $499/$599 configurations require a substantial purchase decision",
      "limit": "The seed does not quantify development burden or identify a single cause of weak launch performance",
      "source_ids": "H12;H13;H14"
    },
    {
      "decision_id": "DE05",
      "decision": "PS3 revisions and old discs",
      "documented_choice": "Compatibility differs by model",
      "developer_consequence_interpretation": "Rerelease and original-media support remain distinct",
      "player_consequence_interpretation": "Need exact model and title, not storage-size shorthand",
      "limit": "Only the CECHE01 primary manual row is established here",
      "source_ids": "N15;N16"
    },
    {
      "decision_id": "DE06",
      "decision": "Plus / account services",
      "documented_choice": "Continuing membership exchanges",
      "developer_consequence_interpretation": "Revenue and continued engagement become relevant beyond one launch",
      "player_consequence_interpretation": "Claimed, purchased and catalog entitlements behave differently",
      "limit": "Membership is neither ownership of every title nor uniformly worse value",
      "source_ids": "H16;N27;N28;N29"
    },
    {
      "decision_id": "DE07",
      "decision": "PS4: x86 and clear purchase rules",
      "documented_choice": "Developer-oriented architecture and explicit offline/disc assurances",
      "developer_consequence_interpretation": "A more familiar production proposition",
      "player_consequence_interpretation": "Clearer use rules coexist with multiplayer subscriptions and no native PS3 discs",
      "limit": "Do not quantify developer savings or claim every limitation disappeared",
      "source_ids": "H14"
    },
    {
      "decision_id": "DE08",
      "decision": "PS5 / Pro",
      "documented_choice": "Fast storage, tactile feedback and premium rendering options",
      "developer_consequence_interpretation": "Capabilities available to exploit, not universal game outcomes",
      "player_consequence_interpretation": "Different displays, games and libraries change upgrade value",
      "limit": "No first-hand FPS, latency, loading-time or power measurements",
      "source_ids": "H27;H28;H29"
    },
    {
      "decision_id": "DE09",
      "decision": "Portal / PC / VR2 PC",
      "documented_choice": "Access and software distribution extend beyond one console",
      "developer_consequence_interpretation": "Wider routes without identical feature sets",
      "player_consequence_interpretation": "Hardware ownership, purchased editions and streaming eligibility separate",
      "limit": "No global cloud eligibility or shared PC/console license assumption",
      "source_ids": "N22;N23;N32;N39"
    },
    {
      "decision_id": "DE10",
      "decision": "Accessibility",
      "documented_choice": "More configurable inputs and software options",
      "developer_consequence_interpretation": "Inclusion requires design and testing, not only more settings",
      "player_consequence_interpretation": "Some barriers can be reduced; individual suitability remains variable",
      "limit": "Specialist practice belongs to its actual authors; no universal accessibility score",
      "source_ids": "H37;H38;K18;K19"
    },
    {
      "decision_id": "DE11",
      "decision": "Live services and closures",
      "documented_choice": "Operation is part of the work’s continued availability",
      "developer_consequence_interpretation": "Ongoing staffing and resources matter after launch",
      "player_consequence_interpretation": "Refunds do not retain a vanished social/game experience",
      "limit": "No invented budgets, motive attribution or universal causal explanation",
      "source_ids": "H35;N38;N40"
    },
    {
      "decision_id": "DE12",
      "decision": "Preservation and store changes",
      "documented_choice": "Commerce, retained artifacts, execution and context diverge",
      "developer_consequence_interpretation": "Reissues/remakes are not identical archival substitutes",
      "player_consequence_interpretation": "A closure date alone cannot answer discs, saves, patches and servers",
      "limit": "2026 policy announcements are not completed 2027/2028 transitions",
      "source_ids": "H41;H42;N03;N04;N09"
    }
  ],
  "sources": {
    "H01": {
      "title": "Preserved firmware inventory: ps3",
      "original_url": "https://darthsternie.net/ps3-firmwares/",
      "publisher": "Darthsternie's Firmware Archive",
      "type": "Preservation operator inventory",
      "publication_date": null,
      "accessed_at": "2026-09-11",
      "claims_supported": "The operator catalogs these version labels. Not Sony confirmation of release dates, changes or file authenticity.",
      "limitations": "No binaries fetched or tested. Retail availability, factory/disc distribution and model applicability are not established by a catalog label.",
      "retrieval_status": "Metadata table read; only normal firmware sections selected."
    },
    "H04": {
      "title": "Preserved firmware inventory: vita",
      "original_url": "https://darthsternie.net/ps-vita-firmwares/",
      "publisher": "Darthsternie's Firmware Archive",
      "type": "Preservation operator inventory",
      "publication_date": null,
      "accessed_at": "2026-09-11",
      "claims_supported": "The operator catalogs these version labels. Not Sony confirmation of release dates, changes or file authenticity.",
      "limitations": "No binaries fetched or tested. Retail availability, factory/disc distribution and model applicability are not established by a catalog label.",
      "retrieval_status": "Metadata table read; only normal firmware sections selected."
    },
    "H09": {
      "source_id": "H09",
      "title": "2000: PlayStation 2 and PSP",
      "publisher": "Sony Interactive Entertainment",
      "publication_date": null,
      "original_url": "https://www.playstation.com/en-us/playstation-history/2000-ps2-psp/",
      "retrieved_url": "https://www.playstation.com/en-us/playstation-history/2000-ps2-psp/",
      "accessed_at": "2026-09-11",
      "type": "Corporate primary / retrospective",
      "retrieval_status": "Read in this research; historical source scope retained",
      "claims_supported": "PS2 chronology, games and peripheral history; PSP date conflict",
      "limitations": "PSP Japan launch displayed as 2004-12-11, conflicting with the seed and contemporary WIRED report (2004-12-12). Do not silently resolve.",
      "last_attempt_at": "2026-09-11"
    },
    "H11": {
      "source_id": "H11",
      "title": "PSP Sales Top 10 Million in Japan",
      "publisher": "WIRED",
      "publication_date": "2008-08-27",
      "original_url": "https://www.wired.com/2008/08/psp-sales-top-1/",
      "retrieved_url": "https://www.wired.com/2008/08/psp-sales-top-1/",
      "accessed_at": "2026-09-11",
      "type": "Independent reporting or research",
      "retrieval_status": "Read in this research; historical source scope retained",
      "claims_supported": "PSP December 12, 2004 launch and regional commercial context",
      "limitations": "Original research/reporting has its stated date, scope and method; not a substitute for current support.",
      "last_attempt_at": "2026-09-11"
    },
    "H07": {
      "source_id": "H07",
      "title": "Platinum Titles",
      "publisher": "Capcom",
      "publication_date": null,
      "original_url": "https://www.capcom.co.jp/ir/english/business/million.html",
      "retrieved_url": "https://www.capcom.co.jp/ir/english/business/million.html",
      "accessed_at": "2026-09-11",
      "type": "Publisher corporate data",
      "retrieval_status": "Read in this research; historical source scope retained",
      "claims_supported": "Publisher-specific game release and sales records",
      "limitations": "Original research/reporting has its stated date, scope and method; not a substitute for current support.",
      "last_attempt_at": "2026-09-11"
    },
    "N46": {
      "source_id": "N46",
      "title": "Sony Unveils PSP Go",
      "publisher": "WIRED",
      "publication_date": "2009-06-02",
      "original_url": "https://www.wired.com/2009/06/pspgo/",
      "retrieved_url": "https://www.wired.com/2009/06/pspgo/",
      "accessed_at": "2026-09-11",
      "type": "Independent contemporary reporting",
      "retrieval_status": "Read in this research",
      "claims_supported": "PSPgo removes UMD drive, includes 16GB storage; October 1 Western launch and $250 announcement",
      "limitations": "Contemporary announcement reporting, not a later sales outcome or current store-access statement.",
      "last_attempt_at": "2026-09-11"
    },
    "H12": {
      "source_id": "H12",
      "title": "2006: PlayStation 3 and PS Vita",
      "publisher": "Sony Interactive Entertainment",
      "publication_date": null,
      "original_url": "https://www.playstation.com/en-us/playstation-history/2007-ps3-ps-vita/",
      "retrieved_url": "https://www.playstation.com/en-us/playstation-history/2007-ps3-ps-vita/",
      "accessed_at": "2026-09-11",
      "type": "Corporate primary / retrospective",
      "retrieval_status": "Read in this research; historical source scope retained",
      "claims_supported": "PS3 and Vita historical overview",
      "limitations": "Corporate retrospectives and announcements are not independent evidence of motives or outcomes. Historical offers are not automatically current rules.",
      "last_attempt_at": "2026-09-11"
    },
    "H13": {
      "source_id": "H13",
      "title": "Lower PS3 Price for Japan, HDMI for All Models",
      "publisher": "WIRED",
      "publication_date": "2006-09-22",
      "original_url": "https://www.wired.com/2006/09/lower-ps3-price/",
      "retrieved_url": "https://www.wired.com/2006/09/lower-ps3-price/",
      "accessed_at": "2026-09-11",
      "type": "Independent reporting or research",
      "retrieval_status": "Read in this research",
      "claims_supported": "Contemporaneous PS3 pricing context",
      "limitations": "Contemporary reporting; historical nominal prices, not current retail quotations or an explanation of all commercial outcomes.",
      "last_attempt_at": "2026-09-11"
    },
    "H14": {
      "source_id": "H14",
      "title": "PS4: The Ultimate FAQ — North America",
      "publisher": "PlayStation.Blog",
      "publication_date": "2013-10-30; subsequently updated",
      "original_url": "https://blog.playstation.com/2013/10/30/ps4-the-ultimate-faq-north-america/",
      "retrieved_url": "https://blog.playstation.com/2013/10/30/ps4-the-ultimate-faq-north-america/",
      "accessed_at": "2026-09-11",
      "type": "Corporate primary / retrospective",
      "retrieval_status": "Read in this research; historical source scope retained",
      "claims_supported": "PS4 launch, design and original access rules",
      "limitations": "Corporate retrospectives and announcements are not independent evidence of motives or outcomes. Historical offers are not automatically current rules.",
      "last_attempt_at": "2026-09-11"
    },
    "N15": {
      "source_id": "N15",
      "title": "PS3 Safety and Support manual, CECHE01",
      "publisher": "Sony Computer Entertainment",
      "publication_date": null,
      "original_url": "http://www.playstation.com/manual/pdf/PS3-01-1.6_1.pdf",
      "retrieved_url": "https://web.archive.org/web/20080216091247if_/http://www.playstation.com/manual/pdf/PS3-01-1.6_1.pdf",
      "accessed_at": "2026-09-11",
      "type": "Official primary",
      "retrieval_status": "Archived original read; live original unavailable",
      "claims_supported": "Printed p3 exact CECHE01; p20 80GB/4 USB; p22 PS2 formats with limited compatibility; p23 region markings",
      "limitations": "Original URL failed; archived Sony PDF read and pages visually checked. Supports CECHE01, not all 80GB consoles or every title.",
      "last_attempt_at": "2026-09-11"
    },
    "N16": {
      "source_id": "N16",
      "title": "Archived PS3 system comparison",
      "publisher": "Sony Computer Entertainment America",
      "publication_date": null,
      "original_url": "http://www.us.playstation.com/PS3/About/Comparison",
      "retrieved_url": "https://web.archive.org/web/20080213150843/http://www.us.playstation.com/PS3/About/Comparison",
      "accessed_at": "2026-09-11",
      "type": "Official primary",
      "retrieval_status": "Archived original read",
      "claims_supported": "Contemporaneous 40GB Spider-Man 3 and 80GB MotorStorm bundles differ; most PS2/PSone statement on 80GB bundle",
      "limitations": "Archive capture February 13 2008 is not page publication date; bundles must not be generalized to every capacity-equivalent PS3.",
      "last_attempt_at": "2026-09-11"
    },
    "H16": {
      "source_id": "H16",
      "title": "PlayStation Plus: Your Questions Answered",
      "publisher": "PlayStation.Blog",
      "publication_date": "2010-06-24",
      "original_url": "https://blog.playstation.com/2010/06/24/playstation-plus-your-questions-answered/",
      "retrieved_url": "https://blog.playstation.com/2010/06/24/playstation-plus-your-questions-answered/",
      "accessed_at": "2026-09-11",
      "type": "Corporate primary / retrospective",
      "retrieval_status": "Read in this research; historical source scope retained",
      "claims_supported": "Original Plus launch and entitlement distinctions",
      "limitations": "Corporate retrospectives and announcements are not independent evidence of motives or outcomes. Historical offers are not automatically current rules.",
      "last_attempt_at": "2026-09-11"
    },
    "N27": {
      "source_id": "N27",
      "title": "Subscribe to PlayStation Plus and download monthly games",
      "publisher": "Sony Interactive Entertainment",
      "publication_date": null,
      "original_url": "https://www.playstation.com/en-us/support/subscriptions/subscribe-ps-plus-download-monthly-games/",
      "retrieved_url": "https://www.playstation.com/en-us/support/subscriptions/subscribe-ps-plus-download-monthly-games/",
      "accessed_at": "2026-09-11",
      "type": "Official primary",
      "retrieval_status": "Read in this research",
      "claims_supported": "Monthly Games claiming and download workflow; eligible tiers",
      "limitations": "Scope is limited to the cited section, product, region and date. Retrieval does not establish implementation or independent testing.",
      "last_attempt_at": "2026-09-11"
    },
    "N28": {
      "source_id": "N28",
      "title": "Cancel a PlayStation Plus subscription",
      "publisher": "Sony Interactive Entertainment",
      "publication_date": null,
      "original_url": "https://www.playstation.com/en-us/support/subscriptions/cancel-playstation-plus/",
      "retrieved_url": "https://www.playstation.com/en-us/support/subscriptions/cancel-playstation-plus/",
      "accessed_at": "2026-09-11",
      "type": "Official primary",
      "retrieval_status": "Read in this research",
      "claims_supported": "Cancellation versus expiry; continuing prepaid benefits; separate discounted purchases",
      "limitations": "Scope is limited to the cited section, product, region and date. Retrieval does not establish implementation or independent testing.",
      "last_attempt_at": "2026-09-11"
    },
    "N29": {
      "source_id": "N29",
      "title": "PlayStation Plus usage terms",
      "publisher": "Sony Interactive Entertainment",
      "publication_date": null,
      "original_url": "https://www.playstation.com/en-us/legal/ps-plus-usage-terms/",
      "retrieved_url": "https://www.playstation.com/en-us/legal/ps-plus-usage-terms/",
      "accessed_at": "2026-09-11",
      "type": "Official primary",
      "retrieval_status": "Read in this research",
      "claims_supported": "Membership/tier/title availability; regions; add-on/base-game dependency",
      "limitations": "Legal text used to explain the product’s stated rules, not personalized legal advice.",
      "last_attempt_at": "2026-09-11"
    },
    "H27": {
      "source_id": "H27",
      "title": "Unveiling New Details of PlayStation 5: Hardware Technical Specs",
      "publisher": "PlayStation.Blog",
      "publication_date": "2020-03-18",
      "original_url": "https://blog.playstation.com/2020/03/18/unveiling-new-details-of-playstation-5-hardware-technical-specs/",
      "retrieved_url": "https://blog.playstation.com/2020/03/18/unveiling-new-details-of-playstation-5-hardware-technical-specs/",
      "accessed_at": "2026-09-11",
      "type": "Corporate primary / retrospective",
      "retrieval_status": "Read in this research; historical source scope retained",
      "claims_supported": "Original PS5 technical design, not every later revision",
      "limitations": "Corporate retrospectives and announcements are not independent evidence of motives or outcomes. Historical offers are not automatically current rules.",
      "last_attempt_at": "2026-09-11"
    },
    "H28": {
      "source_id": "H28",
      "title": "Introducing DualSense, the New Wireless Game Controller for PlayStation 5",
      "publisher": "PlayStation.Blog",
      "publication_date": "2020-04-07",
      "original_url": "https://blog.playstation.com/2020/04/07/introducing-dualsense-the-new-wireless-game-controller-for-playstation-5/",
      "retrieved_url": "https://blog.playstation.com/2020/04/07/introducing-dualsense-the-new-wireless-game-controller-for-playstation-5/",
      "accessed_at": "2026-09-11",
      "type": "Corporate primary / retrospective",
      "retrieval_status": "Read in this research; historical source scope retained",
      "claims_supported": "Announced haptics and adaptive-trigger design",
      "limitations": "Corporate retrospectives and announcements are not independent evidence of motives or outcomes. Historical offers are not automatically current rules.",
      "last_attempt_at": "2026-09-11"
    },
    "H29": {
      "source_id": "H29",
      "title": "Welcome PlayStation 5 Pro, the Most Visually Impressive Way to Play Games on PlayStation",
      "publisher": "PlayStation.Blog",
      "publication_date": "2024-09-10",
      "original_url": "https://blog.playstation.com/2024/09/10/welcome-playstation-5-pro-the-most-visually-impressive-way-to-play-games-on-playstation/",
      "retrieved_url": "https://blog.playstation.com/2024/09/10/welcome-playstation-5-pro-the-most-visually-impressive-way-to-play-games-on-playstation/",
      "accessed_at": "2026-09-11",
      "type": "Corporate primary / retrospective",
      "retrieval_status": "Read in this research; historical source scope retained",
      "claims_supported": "Pro launch configuration, price and stated rendering changes",
      "limitations": "Corporate retrospectives and announcements are not independent evidence of motives or outcomes. Historical offers are not automatically current rules.",
      "last_attempt_at": "2026-09-11"
    },
    "N22": {
      "source_id": "N22",
      "title": "Cloud streaming arrives on PlayStation Portal with owned digital PS5 games",
      "publisher": "Sony Interactive Entertainment / PlayStation.Blog",
      "publication_date": "2025-11-05",
      "original_url": "https://blog.playstation.com/2025/11/05/cloud-streaming-officially-arrives-on-playstation-portal-today-with-new-support-for-digital-ps5-games-in-your-library/",
      "retrieved_url": "https://blog.playstation.com/2025/11/05/cloud-streaming-officially-arrives-on-playstation-portal-today-with-new-support-for-digital-ps5-games-in-your-library/",
      "accessed_at": "2026-09-11",
      "type": "Official primary",
      "retrieval_status": "Read in this research",
      "claims_supported": "November 5 18:00 PT / November 6 02:00 GMT rollout; selected owned PS5 games; Premium; independent of own PS5",
      "limitations": "Selected games and country/account conditions; does not make PS4 or PS3 cloud-playable on Portal.",
      "last_attempt_at": "2026-09-11"
    },
    "N23": {
      "source_id": "N23",
      "title": "Cloud streaming on PS Portal",
      "publisher": "Sony Interactive Entertainment",
      "publication_date": null,
      "original_url": "https://www.playstation.com/en-us/support/subscriptions/psportal-cloud-game-streaming/",
      "retrieved_url": "https://www.playstation.com/en-us/support/subscriptions/psportal-cloud-game-streaming/",
      "accessed_at": "2026-09-11",
      "type": "Official primary",
      "retrieval_status": "Read in this research",
      "claims_supported": "Adult Premium account; selected owned/catalog PS5 titles; supported-country list; 5/7/13 Mbps thresholds; excluded PS3/PS4",
      "limitations": "Living eligibility page; no entitlement, network-quality or worldwide-availability guarantee.",
      "last_attempt_at": "2026-09-11"
    },
    "N32": {
      "source_id": "N32",
      "title": "PS VR2 PC adapter availability",
      "publisher": "Sony Interactive Entertainment / PlayStation.Blog",
      "publication_date": "2024-06-03; updated 2024-08-07",
      "original_url": "https://blog.playstation.com/2024/06/03/playstation-vr2-players-can-access-games-on-pc-with-adapter-starting-on-august-7/",
      "retrieved_url": "https://blog.playstation.com/2024/06/03/playstation-vr2-players-can-access-games-on-pc-with-adapter-starting-on-august-7/",
      "accessed_at": "2026-09-11",
      "type": "Official primary",
      "retrieval_status": "Read in this research",
      "claims_supported": "PC route August 7; adapter/DisplayPort/SteamVR requirements; features absent on PC",
      "limitations": "Original PC requirements are dated; do not recommend an unsupported OS in 2026 from 2024 specifications.",
      "last_attempt_at": "2026-09-11"
    },
    "N39": {
      "source_id": "N39",
      "title": "PlayStation Games for PC",
      "publisher": "Sony Interactive Entertainment",
      "publication_date": null,
      "original_url": "https://www.playstation.com/en-us/pc/pc-games/",
      "retrieved_url": "https://www.playstation.com/en-us/pc/pc-games/",
      "accessed_at": "2026-09-11",
      "type": "Official primary",
      "retrieval_status": "Read in this research",
      "claims_supported": "Console/PC products purchased separately; account features/title differences; current publisher FAQ",
      "limitations": "Cross-save statement is publisher-wide wording, not a tested universal title matrix; use exact publisher policies for exceptions.",
      "last_attempt_at": "2026-09-11"
    },
    "H37": {
      "source_id": "H37",
      "title": "The Last of Us Part II: Accessibility Features Detailed",
      "publisher": "PlayStation.Blog",
      "publication_date": "2020-06-09",
      "original_url": "https://blog.playstation.com/2020/06/09/the-last-of-us-part-ii-accessibility-features-detailed/",
      "retrieved_url": "https://blog.playstation.com/2020/06/09/the-last-of-us-part-ii-accessibility-features-detailed/",
      "accessed_at": "2026-09-11",
      "type": "Corporate primary / retrospective",
      "retrieval_status": "Read in this research; historical source scope retained",
      "claims_supported": "Developer-described accessibility settings, not universal suitability",
      "limitations": "Corporate retrospectives and announcements are not independent evidence of motives or outcomes. Historical offers are not automatically current rules.",
      "last_attempt_at": "2026-09-11"
    },
    "H38": {
      "source_id": "H38",
      "title": "Access Controller for PS5 Launches Globally on December 6",
      "publisher": "PlayStation.Blog",
      "publication_date": "2023-07-13",
      "original_url": "https://blog.playstation.com/2023/07/13/access-controller-for-ps5-launches-globally-on-december-6/",
      "retrieved_url": "https://blog.playstation.com/2023/07/13/access-controller-for-ps5-launches-globally-on-december-6/",
      "accessed_at": "2026-09-11",
      "type": "Corporate primary / retrospective",
      "retrieval_status": "Read in this research; historical source scope retained",
      "claims_supported": "Announced controller launch and configuration",
      "limitations": "Corporate retrospectives and announcements are not independent evidence of motives or outcomes. Historical offers are not automatically current rules.",
      "last_attempt_at": "2026-09-11"
    },
    "K18": {
      "source_id": "K18",
      "title": "How SpecialEffect access the PS5 console",
      "publisher": "SpecialEffect / GameAccess",
      "publication_date": null,
      "original_url": "https://gameaccess.info/how-specialeffect-access-the-playstation-5-console-video/",
      "retrieved_url": "https://gameaccess.info/how-specialeffect-access-the-playstation-5-console-video/",
      "accessed_at": "2026-09-11",
      "type": "Direct website observation / benchmark",
      "retrieval_status": "Read in this research",
      "claims_supported": "Practical configuration video and transcript; expertise is SpecialEffect’s, not ours",
      "limitations": "Observed public content or stated methods, not analytics, verified conversion performance, or permission to copy assets/data.",
      "last_attempt_at": "2026-09-11"
    },
    "K19": {
      "source_id": "K19",
      "title": "Can I Play That? reviewing guide",
      "publisher": "Can I Play That?",
      "publication_date": null,
      "original_url": "https://caniplaythat.com/reviewing-guide/",
      "retrieved_url": "https://caniplaythat.com/reviewing-guide/",
      "accessed_at": "2026-09-11",
      "type": "Direct website observation / benchmark",
      "retrieval_status": "Read in this research",
      "claims_supported": "Disability-informed functional review and limits of ratings",
      "limitations": "Observed public content or stated methods, not analytics, verified conversion performance, or permission to copy assets/data.",
      "last_attempt_at": "2026-09-11"
    },
    "H35": {
      "source_id": "H35",
      "title": "An Important Update on Concord",
      "publisher": "PlayStation.Blog",
      "publication_date": "2024-09-03",
      "original_url": "https://blog.playstation.com/2024/09/03/an-important-update-on-concord/",
      "retrieved_url": "https://blog.playstation.com/2024/09/03/an-important-update-on-concord/",
      "accessed_at": "2026-09-11",
      "type": "Corporate primary / retrospective",
      "retrieval_status": "Read in this research; historical source scope retained",
      "claims_supported": "Announced September 6 shutdown, sales cessation and refunds",
      "limitations": "Corporate retrospectives and announcements are not independent evidence of motives or outcomes. Historical offers are not automatically current rules.",
      "last_attempt_at": "2026-09-11"
    },
    "N38": {
      "source_id": "N38",
      "title": "An Update on The Last of Us Online",
      "publisher": "Naughty Dog",
      "publication_date": "2023-12-14",
      "original_url": "https://www.naughtydog.com/blog/an_update_on_the_last_of_us_online",
      "retrieved_url": "https://www.naughtydog.com/blog/an_update_on_the_last_of_us_online",
      "accessed_at": "2026-09-11",
      "type": "Official primary",
      "retrieval_status": "Read in this research",
      "claims_supported": "Development stopped; studio explanation of post-launch resource tradeoff",
      "limitations": "Company explanation, not proof that this was the only possible strategy. Supersedes N34’s undated upcoming-multiplayer sentence.",
      "last_attempt_at": "2026-09-11"
    },
    "N40": {
      "source_id": "N40",
      "title": "An Update from PlayStation Studios",
      "publisher": "Sony Interactive Entertainment",
      "publication_date": "2024-10-29",
      "original_url": "https://sonyinteractive.com/en/news/blog/an-update-from-playstation-studios/",
      "retrieved_url": "https://sonyinteractive.com/en/news/blog/an-update-from-playstation-studios/",
      "accessed_at": "2026-09-11",
      "type": "Official primary",
      "retrieval_status": "Read in this research",
      "claims_supported": "Firewalk and Neon Koi closure decisions; Concord permanently sunset; canceled mobile project",
      "limitations": "Management rationale is not independent evidence that closures were unavoidable.",
      "last_attempt_at": "2026-09-11"
    },
    "H41": {
      "source_id": "H41",
      "title": "87% Missing: The Disappearance of Classic Video Games",
      "publisher": "Video Game History Foundation",
      "publication_date": "2023-07-10",
      "original_url": "https://gamehistory.org/87percent/",
      "retrieved_url": "https://gamehistory.org/87percent/",
      "accessed_at": "2026-09-11",
      "type": "Independent reporting or research",
      "retrieval_status": "Read in this research; historical source scope retained",
      "claims_supported": "Commercial availability study headline; not a PlayStation-only loss rate",
      "limitations": "Original research/reporting has its stated date, scope and method; not a substitute for current support.",
      "last_attempt_at": "2026-09-11"
    },
    "H42": {
      "source_id": "H42",
      "title": "The Game Availability Study, Explained",
      "publisher": "Video Game History Foundation",
      "publication_date": "2023-07-10",
      "original_url": "https://gamehistory.org/study-explainer/",
      "retrieved_url": "https://gamehistory.org/study-explainer/",
      "accessed_at": "2026-09-11",
      "type": "Independent reporting or research",
      "retrieval_status": "Read in this research; historical source scope retained",
      "claims_supported": "Sampling, scope, remake distinction and April 15, 2023 observation cutoff",
      "limitations": "Original research/reporting has its stated date, scope and method; not a substitute for current support.",
      "last_attempt_at": "2026-09-11"
    },
    "N03": {
      "source_id": "N03",
      "title": "An update on PlayStation Store for PS3 and PS Vita",
      "publisher": "Sony Interactive Entertainment / PlayStation.Blog",
      "publication_date": "2026-07-01",
      "original_url": "https://blog.playstation.com/2026/07/01/an-update-on-playstation-store-for-ps3-and-ps-vita/",
      "retrieved_url": "https://blog.playstation.com/2026/07/01/an-update-on-playstation-store-for-ps3-and-ps-vita/",
      "accessed_at": "2026-09-11",
      "type": "Official primary",
      "retrieval_status": "Read in this research",
      "claims_supported": "Announced Mexico/Honduras/Nicaragua August 2026 PS3 phase; unnamed later regions; July 2027 remainder; redownload statement",
      "limitations": "Future/elapsed announcement, not observed implementation; Mexico schedule conflicts with N05. Later-2026 countries are not named in the retrieved original.",
      "last_attempt_at": "2026-09-11"
    },
    "N04": {
      "source_id": "N04",
      "title": "Important notices (United States)",
      "publisher": "Sony Interactive Entertainment",
      "publication_date": null,
      "original_url": "https://www.playstation.com/en-us/support/important-notice/",
      "retrieved_url": "https://www.playstation.com/en-us/support/important-notice/",
      "accessed_at": "2026-09-11",
      "type": "Official primary",
      "retrieval_status": "Read in this research",
      "claims_supported": "Regional July 2027 notice; PSP commerce July 6 2021; payment and device/transfer limitations; PS Camera adapter notice",
      "limitations": "Undated living regional notice; individual online services remain separate; not proof of all-world implementation.",
      "last_attempt_at": "2026-09-11"
    },
    "N09": {
      "source_id": "N09",
      "title": "Physical disc production ending in January 2028 for new games releasing on PlayStation consoles",
      "publisher": "Sony Interactive Entertainment / PlayStation.Blog",
      "publication_date": "2026-07-01",
      "original_url": "https://blog.playstation.com/2026/07/01/physical-disc-production-ending-in-january-2028-for-new-games-releasing-on-playstation-consoles",
      "retrieved_url": "https://blog.playstation.com/2026/07/01/physical-disc-production-ending-in-january-2028-for-new-games-releasing-on-playstation-consoles",
      "accessed_at": "2026-09-11",
      "type": "Official primary",
      "retrieval_status": "Read in this research",
      "claims_supported": "Announced future new-release disc-production policy; existing/pre-2028 releases distinguished",
      "limitations": "Future announcement, not completed transition or a technical statement that existing discs stop working. No exact January day inferred.",
      "last_attempt_at": "2026-09-11"
    }
  }
}