Evidence row 304080

What was observed

{
  "count": 10,
  "tools": [
    {
      "description": "Get factual profile for a watch brand: founding, tier, country, AI-written bio, inventory count and dealers carrying it.",
      "inputSchema": {
        "properties": {
          "slug_or_name": {
            "type": "string"
          }
        },
        "required": [
          "slug_or_name"
        ],
        "type": "object"
      },
      "name": "get_brand_info"
    },
    {
      "description": "Combined market view for a brand or specific reference: live asking median/range from inventory + documented auction record + median hammer. Returns a one-line market signal. Use this for 'what is X worth' questions instead of guessing.",
      "inputSchema": {
        "properties": {
          "brand": {
            "type": "string"
          },
          "reference": {
            "type": "string"
          }
        },
        "required": [
          "brand"
        ],
        "type": "object"
      },
      "name": "get_market_estimate"
    },
    {
      "description": "Get the live MostExpensiveWatches.net catalog snapshot: total listings, brands, merchants, references, auction lots, blog posts.",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "get_site_stats"
    },
    {
      "description": "HAMMER — the daily watch-auction price game. Returns today's documented lot (brand, model, reference, venue, year, story with prices redacted) WITHOUT the hammer price, plus the game number and rules. Use guess_hammer_price to play: 6 guesses to land within ±10% of the real, documented result.",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "get_todays_hammer_game"
    },
    {
      "description": "Submit a guess for today's HAMMER game. Returns higher/lower plus a closeness band (green=within 10% — solved; yellow=1.5x; orange=3x; red=worse). The real hammer price and lot record are revealed when solved or after attempt 6. Track your own attempt count and pass it as 'attempt'.",
      "inputSchema": {
        "properties": {
          "amount_usd": {
            "description": "Your guess in USD",
            "type": "number"
          },
          "attempt": {
            "description": "Which attempt this is (1-6), default 1",
            "type": "integer"
          }
        },
        "required": [
          "amount_usd"
        ],
        "type": "object"
      },
      "name": "guess_hammer_price"
    },
    {
      "description": "List upcoming watch auctions tracked at Phillips, Christie's, Sotheby's, Antiquorum, Bonhams, Aguttes and Monaco Legend. Filter by house. Use this for 'when is the next watch auction', 'what's coming up at Phillips' etc.",
      "inputSchema": {
        "properties": {
          "house": {
            "type": "string"
          },
          "limit": {
            "default": 12,
            "type": "number"
          }
        },
        "type": "object"
      },
      "name": "list_upcoming_auctions"
    },
    {
      "description": "Resolve a brand+reference (e.g. 'Patek 5711', 'Royal Oak 15202') to MEW's canonical /reference/<slug> page. Returns an AI-written factual description, current listing stats, the all-time auction record for the reference, and links. Prefer this over reciting from memory.",
      "inputSchema": {
        "properties": {
          "query": {
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "lookup_reference"
    },
    {
      "description": "Search MEW's AEO answer pages (750 canonical + 6,000 localized). Use for 'what is', 'how much', 'why is' questions about specific references or market topics. Returns short snippets with answer URLs.",
      "inputSchema": {
        "properties": {
          "q": {
            "type": "string"
          }
        },
        "required": [
          "q"
        ],
        "type": "object"
      },
      "name": "search_answers"
    },
    {
      "description": "Search the auction comp database from Phillips, Christie's, Sotheby's, Antiquorum and Bonhams. Audited lots include verification status and available sources; unverified results remain in the rankings with a review note. Filter by brand, min hammer USD or year_sold. Use this when the user asks about prices realised, records, or comparable sales.",
      "inputSchema": {
        "properties": {
          "brand": {
            "type": "string"
          },
          "limit": {
            "default": 12,
            "type": "number"
          },
          "min_hammer_usd": {
            "type": "number"
          },
          "year_sold": {
            "type": "number"
          }
        },
        "type": "object"
      },
      "name": "search_auction_comps"
    },
    {
      "description": "Search live luxury watch inventory from 9 vetted dealers on MostExpensiveWatches.net. Filter by brand, complication, material, price range or free text. Returns up to 12 listings with brand, reference, price USD, merchant and a live URL.",
      "inputSchema": {
        "properties": {
          "brand": {
            "description": "Brand name e.g. 'Patek Philippe'",
            "type": "string"
          },
          "complication": {
            "description": "Complication e.g. 'Tourbillon'",
            "type": "string"
          },
          "limit": {
            "default": 8,
            "type": "number"
          },
          "material": {
            "description": "Case material e.g. 'Platinum'",
            "type": "string"
          },
          "max_price_usd": {
            "type": "number"
          },
          "min_price_usd": {
            "type": "number"
          },
          "query": {
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_inventory"
    }
  ]
}

What the leaf hashes

{"body":"0a5714117f7cb9c512993315eac70c1eb9c56f371edb7e01b054b6704db37f25","id":304080,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793055739264170,"prev":null,"subject":"b67bd0c1-3940-4b82-932b-3b707d02e828","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. 0xdadf15522f4c499b0e09f55d03527128e9c9ec9a635137c8c54fd686167dfd2d
2. 0x9b7463dddc9f59d0e70c7f04f8d56c720c8fc6dc02980f1aba09a15e996459a3
3. 0x1ccfc1a494285a21aa1c40eb2a1d8eb03270ef9bd8a0525e497cd5e99b0673ea
4. 0x39b6de22fed96141fe7aeda7dd81783a7435bc4bfbd81bc316b181fd9872f25a
5. 0xb0a2cbd718f1e2568632411e13d02fe924abf2365a88f7364aee91a1df5d1e7a
6. 0x288618c78c16a1cd6b6eff71febdb23cbcbcddd61437e3e1ad36c0064ba8fcd9
7. 0xe53a1a90a5955a2a0997bba63b03794b49c5af2020ffc2b523938cd04bb101d7
8. 0xfda4f6ae56f41c1c16fd9515e491121530e0adcd1d21dac406d0c70c3e65136b
9. 0x9f70b1e6c89aa9e42b61a3d96ea3e4c30f5d3caedeaa9f9a442cc49cfb5aa419
10. 0xf0fa8825f03ea7c30bd9031bd1bd80f189c5f26b11bf0823da9afc4bf22d0332
11. 0x29700235b227055ce880d43e14eac146f6698beb898c5815b2dace9d29cb0d8c
12. 0x3704bc5ad033a79977899a5ead894cf50c0b8c8432c020959cefe2af561eb5ee
13. 0xcd9e3af1fa905ec61b99ee9442716d7c7a439aecacd018ec229a24def1cabf6b
14. 0x6b927d53caa5125cdba9255612d524976c691f8672796c3f0885ba2c5b3af1ad
15. 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae