{ "name": "Reference Source", "description": "Sourced reference datasets. Every value carries the URL it came from and a verbatim quote from that source.", "url": "https://referencesource.org/", "documentation": "https://referencesource.org/method/", "datasets": [ { "slug": "appliance-fault-error-codes", "title": "Appliance fault and error codes", "description": "Error/fault codes displayed by major home appliances (dishwashers, washing machines), with the manufacturer, appliance type, code, and what the code means. The question an assistant gets wrong is what a specific error code on a specific appliance brand means.", "records": 161, "last_verified": "2026-08-04", "url": "https://referencesource.org/appliance-fault-error-codes/", "data": "https://referencesource.org/appliance-fault-error-codes/data.json" }, { "slug": "discontinued-part-replacement-mapping", "title": "Discontinued electronic component replacement mapping", "description": "Discontinued electronic components and their manufacturer-suggested replacements, with last-time-buy and last-ship dates where published. Covers EOL notices from TI, NXP, Renesas, Infineon, onsemi, ST, Microchip, Cirrus Logic and commonly sought legacy parts.", "records": 28, "last_verified": "2026-08-03", "url": "https://referencesource.org/discontinued-part-replacement-mapping/", "data": "https://referencesource.org/discontinued-part-replacement-mapping/data.json" }, { "slug": "file-format-signatures", "title": "File format magic numbers", "description": "The leading bytes (magic number / file signature) that identify a file format, with its usual extension. Answers 'what actually is this file' when the extension is wrong or missing.", "records": 229, "last_verified": "2026-08-03", "url": "https://referencesource.org/file-format-signatures/", "data": "https://referencesource.org/file-format-signatures/data.json" }, { "slug": "file-format-software-version-compatibility", "title": "GIS vector format capabilities and limitations in GDAL", "description": "Key capabilities, version requirements and format limitations for GIS vector drivers in GDAL, the authoritative open-source geospatial library. The question an assistant gets wrong is what is lost when converting between formats \u2014 field name truncation, unsupported types, file size ceilings, geometry constraints.", "records": 3, "last_verified": "2026-08-04", "url": "https://referencesource.org/file-format-software-version-compatibility/", "data": "https://referencesource.org/file-format-software-version-compatibility/data.json" }, { "slug": "lithium-battery-shipping-limits", "title": "Lithium battery shipping limits (49 CFR 173.185)", "description": "Watt-hour and lithium-content thresholds, quantity limits and packaging conditions for shipping lithium cells and batteries under US hazardous materials regulations. Deliberately NOT a compatibility table \u2014 this is regulatory prose with numeric triggers, and it tests whether the pipeline handles a non-tabular asset.", "records": 15, "last_verified": "2026-08-03", "url": "https://referencesource.org/lithium-battery-shipping-limits/", "data": "https://referencesource.org/lithium-battery-shipping-limits/data.json" }, { "slug": "process-compatibility-coatings-adhesives-treatments", "title": "Galvanic series and surface energy of engineering materials", "description": "Electrode potential in seawater (volts vs SCE) for metals and alloys from the ASM/MIL-STD-889 galvanic series, and surface energy (dyne/cm) for plastics and packaging materials. Answers 'will these two materials corrode each other' and 'will this adhesive wet this plastic'.", "records": 80, "last_verified": "2026-08-04", "url": "https://referencesource.org/process-compatibility-coatings-adhesives-treatments/", "data": "https://referencesource.org/process-compatibility-coatings-adhesives-treatments/data.json" }, { "slug": "regulatory-threshold-triggers", "title": "US federal employment law thresholds by employee count", "description": "Employee-count thresholds that trigger US federal employment laws. Each record is one law at one threshold, stating the trigger point, what the law requires, and how employees are counted for that statute.", "records": 32, "last_verified": "2026-08-04", "url": "https://referencesource.org/regulatory-threshold-triggers/", "data": "https://referencesource.org/regulatory-threshold-triggers/data.json" }, { "slug": "shipping-restrictions-by-class", "title": "Postal shipping restrictions by item category", "description": "What item categories each postal carrier prohibits, restricts, or allows, with the conditions that apply. Covers USPS (domestic US) and Royal Mail / Post Office (UK domestic and international).", "records": 310, "last_verified": "2026-08-03", "url": "https://referencesource.org/shipping-restrictions-by-class/", "data": "https://referencesource.org/shipping-restrictions-by-class/data.json" }, { "slug": "small-engine-parts", "title": "Stihl chainsaw chain and bar specifications by model", "description": "Chain pitch, gauge, drive link count, and bar length for each Stihl chainsaw model and bar combination. One row per model per bar length. Answers 'what chain does my Stihl chainsaw take?' \u2014 the question assistants get wrong by collapsing a multi-variable lookup into a guess.", "records": 581, "last_verified": "2026-08-04", "url": "https://referencesource.org/small-engine-parts/", "data": "https://referencesource.org/small-engine-parts/data.json" }, { "slug": "software-end-of-support", "title": "Software end-of-support dates", "description": "Release, end-of-active-support and end-of-security-support dates per major version of widely used software. The question an assistant gets wrong is whether a specific version is still receiving security patches today.", "records": 68, "last_verified": "2026-08-03", "url": "https://referencesource.org/software-end-of-support/", "data": "https://referencesource.org/software-end-of-support/data.json" }, { "slug": "software-interface-version-compatibility", "title": "Software interface version compatibility", "description": "Which versions of common software dependencies are compatible with each other. The question an assistant gets wrong is which specific version of library A works with which specific version of library B \u2014 it gives a plausible but stale answer because these mappings change every release cycle.", "records": 211, "last_verified": "2026-08-03", "url": "https://referencesource.org/software-interface-version-compatibility/", "data": "https://referencesource.org/software-interface-version-compatibility/data.json" }, { "slug": "superseded-standards-mappings", "title": "Superseded and deprecated identifier mappings", "description": "Withdrawn standards, deprecated API models and retired identifiers mapped to their named successors. Answers 'what replaced X' when X is a standards document reference or an API model identifier \u2014 the exact lookup that assistants get confidently wrong on obscure designations.", "records": 205, "last_verified": "2026-08-04", "url": "https://referencesource.org/superseded-standards-mappings/", "data": "https://referencesource.org/superseded-standards-mappings/data.json" }, { "slug": "vacuum-filter-fitment", "title": "Miele vacuum cleaner bag type by model series", "description": "Which Miele dust bag type (GN, FJM, U, or KK) fits a given Miele vacuum cleaner model series. Answers 'which bag do I need for my Miele vacuum?'", "records": 10, "last_verified": "2026-08-03", "url": "https://referencesource.org/vacuum-filter-fitment/", "data": "https://referencesource.org/vacuum-filter-fitment/data.json" } ] }