Evidence row 540499

What was observed

{
  "count": 5,
  "tools": [
    {
      "description": "Ranking of the merchants of one sector by what an AI agent manages to do on their site. / Classement des marchands d’un secteur. Sectors / secteurs : beaute, mode, maison, sport, epicerie, enfant, animalerie, bijoux, bricolage, high-tech.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "langue": {
            "enum": [
              "fr",
              "en"
            ],
            "type": "string"
          },
          "secteur": {
            "enum": [
              "beaute",
              "mode",
              "maison",
              "sport",
              "epicerie",
              "enfant",
              "animalerie",
              "bijoux",
              "bricolage",
              "high-tech"
            ],
            "type": "string"
          }
        },
        "required": [
          "secteur"
        ],
        "type": "object"
      },
      "name": "classement_secteur"
    },
    {
      "description": "Compare two to five French online merchants side by side: score out of 100, six steps, proven facts, machine readability, UCP checkout. / Compare deux à cinq marchands.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "domaines": {
            "description": "Merchant domains, for example [\"a.fr\", \"b.fr\"]. / Domaines des marchands.",
            "items": {
              "type": "string"
            },
            "maxItems": 5,
            "minItems": 2,
            "type": "array"
          },
          "langue": {
            "enum": [
              "fr",
              "en"
            ],
            "type": "string"
          }
        },
        "required": [
          "domaines"
        ],
        "type": "object"
      },
      "name": "comparer_marchands"
    },
    {
      "description": "What an AI agent found when shopping at a French online merchant: score out of 100, six steps, whether it accepts UCP checkout (access, cookies, search, product page, cart, checkout) and five facts. Call it before visiting a merchant site. / Ce qu’un agent IA a constaté chez un marchand français : note sur 100, six étapes, cinq faits et le profil UCP.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "domaine": {
            "description": "Merchant domain, for example exemple-beaute.fr. A full URL is accepted. / Domaine du marchand, adresse complète acceptée.",
            "type": "string"
          },
          "langue": {
            "description": "Language of the summary sentence and of the page link (default fr).",
            "enum": [
              "fr",
              "en"
            ],
            "type": "string"
          }
        },
        "required": [
          "domaine"
        ],
        "type": "object"
      },
      "name": "consulter_marchand"
    },
    {
      "description": "Find tracked French merchants by name or domain (case and accents ignored), across all sectors, with their score and page. / Recherche un marchand suivi par son nom ou son domaine.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "langue": {
            "enum": [
              "fr",
              "en"
            ],
            "type": "string"
          },
          "requete": {
            "description": "Part of the merchant name or domain, at least two characters.",
            "minLength": 2,
            "type": "string"
          }
        },
        "required": [
          "requete"
        ],
        "type": "object"
      },
      "name": "rechercher_marchand"
    },
    {
      "description": "Find French online merchants where an AI agent can actually buy, filtered by proven facts: checkout without an account, delivered price shown, shipping costs, return policy, UCP checkout, minimum score. Sorted by score out of 100. / Marchands où un agent peut acheter, filtrés par faits prouvés.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "frais_livraison": {
            "description": "Shipping costs found. / Frais de livraison trouvés.",
            "type": "boolean"
          },
          "langue": {
            "enum": [
              "fr",
              "en"
            ],
            "type": "string"
          },
          "note_min": {
            "description": "Minimum score out of 100. / Note minimale sur 100.",
            "maximum": 100,
            "minimum": 0,
            "type": "number"
          },
          "prix_livre": {
            "description": "Delivered price shown before any account. / Prix livré affiché avant tout compte.",
            "type": "boolean"
          },
          "retours": {
            "description": "Return policy found. / Politique de retour trouvée.",
            "type": "boolean"
          },
          "sans_compte": {
            "description": "Checkout without an account proven. / Commande sans compte prouvée.",
            "type": "boolean"
          },
          "secteur": {
            "description": "Sector; all sectors if omitted. / Secteur, tous si absent.",
            "enum": [
              "beaute",
              "mode",
              "maison",
              "sport",
              "epicerie",
              "enfant",
              "animalerie",
              "bijoux",
              "bricolage",
              "high-tech"
            ],
            "type": "string"
          },
          "ucp": {
            "description": "Publishes a UCP profile that declares checkout. / Profil UCP avec la commande.",
            "type": "boolean"
          }
        },
        "type": "object"
      },
      "name": "trouver_marchands"
    }
  ]
}

What the leaf hashes

{"body":"798faabf5fd34552c456f9d8788ba6e0d1b1f3c68209812d4ba524b649eb4e71","id":540499,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793130018406455,"prev":null,"subject":"753d6ea1-2539-4a1c-86bc-59806af070b1","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x732006e0b2a0ca706621044ef9bcb29d1dfdbefc882abb0ff769c48d2130919a
2. 0x587e5c249e1127467992207a9e474294af877abbeaf657cb1d3adb68831d1576
3. 0x5181dff4f9c7d55b993ce2e2979c23e4137c92c0a3bc45c344f435b1c7a7bb8d
4. 0xf07d8fb97cea9f57f57fdfcc0861e2b91545c2b581c25b809f2a768f8a84dd12
5. 0x49d98052a16bc1ed18bd6f45779d045609f627b57352692f031b0852c60de853
6. 0xd539187a6c92faf54e6b9ab490ab58aa6b2bff92063ebeccb22b485a03e56c92
7. 0x911f8d50d2c4949061e14b77b2abb253d50861c23f68fa1c753120db27b30181
8. 0x9b1c74b98d40afe29f69202cc625e535ed4fb7587f9f623b1e38f5dbccd2543a
9. 0xc1b05d91dcd055cd7d683a013dad2dac786b72601a5ebed78aa8b5b73d75bd07
10. 0x7f2a99b149f63aa97762c8289399ee8ed994807b28bfca51df3a659282990633
11. 0x23a51a936f60011ce90a404c26ca8b5c81a512eb324bd00dcb5ce643c0b38c8e
12. 0x8a2168d13e43e2c8b0f508ca779f90beef60501499eeab439eb7d23816a97bc4
13. 0x2926e99aefa0ff2e14a67a3ae10a7f6e753ce4b799c6fe531f8cbf8d33b31a66
14. 0xb2ae53d841a55a805fb4078b1a7d44e08a81aba4be3690bac3a5b4c366bf39da
15. 0x275720ecabb68df33eee92ae4fd70572a8d952d6c61c061c2869cfc3217aa5c5
16. 0x23cf9bb4337ee8be7fcae368fd69d24c62c11fb45882127b4cd919bb96a19996
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4