Evidence row 307767

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Full profile of one convention by slug: dates, venue and address, website, artist-alley and vendor registration windows/costs/URLs, every published price tier (artist spaces, dealer booths, badges; this edition and past ones) with its source, portfolio and table-share policy, hotel block, transit access, organizer verification, and up to 6 years of attendance/pricing history. Get slugs from artistally_search_conventions or an ArtistAlly event URL.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "slug": {
            "description": "Convention slug, e.g. \"otafest\" — the last segment of an ArtistAlly /events/ URL.",
            "maxLength": 120,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "artistally_get_convention"
    },
    {
      "description": "The regions, states/provinces, and metro areas ArtistAlly tracks, with approved-convention counts. Use it to learn valid region/state/metro filter values for the other tools. Takes no arguments.",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "artistally_get_coverage"
    },
    {
      "description": "Artist-alley and vendor/dealer registration windows that are open right now or opening soon, sorted by urgency (soonest close date first). The go-to tool for questions like \"which cons can I still apply to?\" or \"what artist alleys open this month?\".",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "community": {
            "description": "Filter by community: furry, anime, gaming, or multi (multi-genre).",
            "enum": [
              "furry",
              "anime",
              "gaming",
              "multi"
            ],
            "type": "string"
          },
          "limit": {
            "description": "Max entries per section, default 30.",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "region": {
            "description": "Coverage region, e.g. \"Southeast\", \"Midwest\", \"West Coast\", \"Canada\". Valid values come from artistally_get_coverage.",
            "maxLength": 30,
            "type": "string"
          },
          "state": {
            "description": "Two-letter US state or Canadian province code, e.g. \"GA\", \"TX\", \"ON\".",
            "maxLength": 2,
            "minLength": 2,
            "type": "string"
          },
          "type": {
            "description": "Which registration kind to include. Default: both.",
            "enum": [
              "artist",
              "vendor",
              "both"
            ],
            "type": "string"
          },
          "within_days": {
            "description": "Look-ahead window in days for \"opening soon\". Default 30.",
            "maximum": 120,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "artistally_list_open_registrations"
    },
    {
      "description": "Search fan conventions (furry, anime, gaming) across 51 US and Canadian metro areas. Returns upcoming conventions by default (soonest first); set include_past to search the archive too. Filter by text, community, region, state, metro, or date range. Returns dates, venue, location, registration windows and table costs, plus a canonical ArtistAlly URL per convention.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "community": {
            "description": "Filter by community: furry, anime, gaming, or multi (multi-genre).",
            "enum": [
              "furry",
              "anime",
              "gaming",
              "multi"
            ],
            "type": "string"
          },
          "include_past": {
            "description": "Include conventions that have already finished (default false). Past results are still sorted soonest-first; use starts_after/starts_before to target a specific year.",
            "type": "boolean"
          },
          "limit": {
            "description": "Max results, default 20.",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "metro": {
            "description": "Metro slug from artistally_get_coverage, e.g. \"atlanta\", \"toronto\".",
            "maxLength": 60,
            "type": "string"
          },
          "offset": {
            "description": "Pagination offset, default 0.",
            "minimum": 0,
            "type": "integer"
          },
          "query": {
            "description": "Free-text match on convention name, venue, or city, e.g. \"Otafest\" or \"Atlanta\".",
            "maxLength": 100,
            "type": "string"
          },
          "region": {
            "description": "Coverage region, e.g. \"Southeast\", \"Midwest\", \"West Coast\", \"Canada\". Valid values come from artistally_get_coverage.",
            "maxLength": 30,
            "type": "string"
          },
          "starts_after": {
            "description": "Only conventions starting on or after this date (YYYY-MM-DD).",
            "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
            "type": "string"
          },
          "starts_before": {
            "description": "Only conventions starting on or before this date (YYYY-MM-DD).",
            "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
            "type": "string"
          },
          "state": {
            "description": "Two-letter US state or Canadian province code, e.g. \"GA\", \"TX\", \"ON\".",
            "maxLength": 2,
            "minLength": 2,
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "artistally_search_conventions"
    }
  ]
}

What the leaf hashes

{"body":"caf56855f112373e86d2ad9b7b1a9264a919e079cdbb71be98d40e61b2d41225","id":307767,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793057867041845,"prev":null,"subject":"0c580f74-4eb9-4bc6-9a09-cb581d136f61","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xc764a7dc9a990ada6a6d713452226dbfa0a3dba31f965552faa626fc434656b5
2. 0x24574eccd65ca404c83da9a75abbae731d7235ea76b83d7cde6c4350a5731246
3. 0x616354160e1b643fdf01ca238774ade803c6a814565ac4d4de74cf7a2d5f8162
4. 0xc792cd74bc8445f8f9d27e6f9fbce1b8b280f9af4a813a4aa5b64b38a7ed06cd
5. 0x509931016ec740e55f0eba8d0759fcf71c8564e5e6803279495e86b04f2672a9
6. 0x77dd05880be48f797db47bb5c24eca7289f26147ae3ee7c507615103a9b1515c
7. 0x5433809089d100f191def6cbbe15420f6fe99a3c65ac4dc19e975a9291f8145e
8. 0x574da29c95265eeaa68bb35a2e7b3b499b558a2d2400d021c856735bb4eb0fea
9. 0x8749938965d5fa044b295e6976ca33f63f6cf2ab1744361eac55e6ca795da107
10. 0xc6ae85d609e7d5890f74a3f5d3b2ebae263f9ec4025f03a326b914e508ffffd3
11. 0xed975d3cf9a825217ed3ef7c3e4522f054cfe35b47c462678d64461a93581906
12. 0x9d99c5dad23613921cdfabc849c2dd3c97729992eaa05c4dab5e86e83ed6d220
13. 0x72e35aac89ebca631656c2b1aecbdc094807d9807f12c22a6ddf35cc1f5e21d6
14. 0x5b20d8aab05225a3497eadcce89d2e2a586a510fb31334793d3f46f88f0157c5
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae