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Two-letter state codes to search. BLM mining claims exist in AK, AZ, CA, CO, ID, MT, NM, NV, OR, UT and WY, plus a small number elsewhere. Name the states explicitly; there is no default, so a run cannot silently answer about Nevada when you meant the whole West.", "items": { "type": "string" } }, "claimType": { "title": "Claim type", "type": "string", "description": "Filter by claim type keyword: Lode, Placer, Mill Site, or Tunnel Site. Matched case-insensitively against BLM's inconsistently-cased product field, so it also catches the National Park variants. Empty = all types." }, "disposition": { "title": "Disposition / status", "enum": [ "", "Active", "Filed", "Submitted", "Pending", "Under Review", "On Appeal", "Appeal - Stay Granted", "Closed" ], "type": "string", "description": "Filter by case disposition. Valid values in the Not Closed layer: Active, Filed, Submitted, Pending, Under Review, On Appeal, Appeal - Stay Granted. The value Closed exists only in the Closed layer, so it also requires includeClosed = true. BLM does not use 'Void' in either layer. An impossible value fails the run rather than returning an empty dataset.", "default": "" }, "nameContains": { "title": "Claim name contains", "type": "string", "description": "Return only claims whose name contains this text." }, "caseSerial": { "title": "Case serial number", "type": "string", "description": "Look up one exact BLM case serial number (e.g. NV105216280)." }, "sinceModified": { "title": "Modified since (YYYY-MM-DD)", "pattern": "^$|^\\d{4}-\\d{1,2}-\\d{1,2}$", "type": "string", "description": "Return only claims created/updated on or after this date — use for new-claim monitoring. MUST be YYYY-MM-DD (e.g. 2026-06-01) - any other format is rejected and the run fails without billing, rather than being silently reinterpreted by ArcGIS's own date parser. Slash forms are rejected on purpose: live-measured, an ambiguous 05/06/2025 is silently read as May 6 (US order) and differs from the June 5 (EU) reading by 6.0% of matching claims, with nothing in the response indicating a format was guessed. Empty = no lower bound." }, "includeClosed": { "title": "Include closed claims", "type": "boolean", "description": "Also search the Closed layer (80,095 records) in addition to the Not Closed layer. Required if you filter on disposition 'Closed'.", "default": false }, "maxResults": { "title": "Max results per layer", "minimum": 1, "maximum": 100000, "type": "integer", "description": "Maximum number of claim records to return per layer, most recently modified first. Every row carries layer_total_matching and result_truncated so you can tell whether you received the complete set - a statewide Nevada query matches over 275,000 claims.", "default": 1000 }, "monitor": { "title": "Delta mode (only new since last run)", "type": "boolean", "description": "Delta mode: emit only claims not seen in previous runs, using a named cross-run store keyed to this exact filter set. 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