Evidence row 3669462

What was observed

{
  "count": 7,
  "tools": [
    {
      "description": "Find source-backed articles in an art, illustration, buying-guide, or creative-career category by category name or slug.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "category": {
            "maxLength": 120,
            "minLength": 1,
            "type": "string"
          },
          "limit": {
            "maximum": 25,
            "minimum": 1,
            "type": "integer"
          }
        },
        "required": [
          "category"
        ],
        "type": "object"
      },
      "name": "articles_by_category"
    },
    {
      "description": "Retrieve public metadata and the paid structured API URL for one article by slug. CMS-authorized clients may also request full Markdown directly from this tool.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "include_content": {
            "default": false,
            "type": "boolean"
          },
          "slug": {
            "maxLength": 200,
            "pattern": "^[a-z0-9-]+$",
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_article"
    },
    {
      "description": "List newly published art and illustration research with summaries, publication dates, canonical pages, and structured API URLs.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "limit": {
            "maximum": 25,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "latest_articles"
    },
    {
      "description": "Validate inputs for a benchmark-based art or illustration commission estimate covering deliverable, experience, complexity, finish, subjects, usage rights, revisions, rush timing, and expenses. Returns the paid x402 endpoint, current USDC price, dataset version, and exact request body without signing or spending funds.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {
          "commission_type": {
            "description": "A quote_key returned by the free catalog endpoint.",
            "pattern": "^[a-z0-9-]{2,120}$",
            "type": "string"
          },
          "complexity": {
            "default": "standard",
            "enum": [
              "simple",
              "standard",
              "complex"
            ],
            "type": "string"
          },
          "expenses_usd": {
            "default": 0,
            "maximum": 100000,
            "minimum": 0,
            "multipleOf": 0.01,
            "type": "number"
          },
          "experience": {
            "default": "established",
            "enum": [
              "emerging",
              "established",
              "expert"
            ],
            "type": "string"
          },
          "finish": {
            "default": "polished",
            "enum": [
              "sketch",
              "polished",
              "rendered"
            ],
            "type": "string"
          },
          "revisions": {
            "default": 2,
            "maximum": 10,
            "minimum": 0,
            "type": "integer"
          },
          "rush": {
            "default": "none",
            "enum": [
              "none",
              "within_14_days",
              "within_7_days",
              "within_3_days"
            ],
            "type": "string"
          },
          "subjects": {
            "default": 1,
            "maximum": 20,
            "minimum": 0,
            "type": "integer"
          },
          "usage": {
            "default": "personal",
            "enum": [
              "personal",
              "editorial",
              "commercial_small",
              "commercial_large",
              "full_buyout"
            ],
            "type": "string"
          }
        },
        "required": [
          "commission_type"
        ],
        "type": "object"
      },
      "name": "prepare_commission_quote"
    },
    {
      "description": "Validate a company query and choose a citation-first Company Snapshot, Company Preflight, Company Change Monitor, Vendor Risk Brief, or Company Dossier. Returns the paid x402 endpoint, exact USDC price, source coverage, and normalized request body without signing or spending funds.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "baseline_report_id": {
            "description": "Optional prior paid Agent Intelligence report ID for an exact evidence comparison.",
            "pattern": "^air_[a-f0-9]{32}$",
            "type": "string"
          },
          "cik": {
            "description": "Optional SEC Central Index Key.",
            "pattern": "^[0-9]{1,10}$",
            "type": "string"
          },
          "company_name": {
            "description": "Legal or commonly used company name.",
            "maxLength": 180,
            "minLength": 2,
            "type": "string"
          },
          "domain": {
            "description": "Bare domain only, without a URL path.",
            "pattern": "^(?=.{3,253}$)(?:[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?\\.)+[a-zA-Z]{2,63}$",
            "type": "string"
          },
          "jurisdiction": {
            "description": "Optional country or jurisdiction hint.",
            "maxLength": 80,
            "minLength": 2,
            "type": "string"
          },
          "lei": {
            "description": "Optional Legal Entity Identifier.",
            "pattern": "^[A-Z0-9]{20}$",
            "type": "string"
          },
          "product": {
            "enum": [
              "company-snapshot",
              "company-change-monitor",
              "company-preflight",
              "vendor-risk",
              "company-dossier"
            ],
            "type": "string"
          },
          "since": {
            "description": "Optional monitoring-window start. Company Change Monitor defaults to 30 days ago.",
            "format": "date-time",
            "type": "string"
          }
        },
        "required": [
          "product",
          "company_name"
        ],
        "type": "object"
      },
      "name": "prepare_company_intelligence"
    },
    {
      "description": "Find source-backed art, illustration, artist-career, and buying-guide research by topic or question. Returns titles, summaries, publication dates, canonical pages, and structured API URLs.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "limit": {
            "maximum": 25,
            "minimum": 1,
            "type": "integer"
          },
          "query": {
            "maxLength": 200,
            "minLength": 2,
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_articles"
    },
    {
      "description": "Return free x402 v2 payment instructions, network and asset metadata, working client examples, and the exact 0.001 USDC wallet-readiness endpoint. This tool never signs or spends funds.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "x402_payment_quickstart"
    }
  ]
}

What the leaf hashes

{"body":"c0c818caaca4668412016f21b39a9a73fc039a3337fb475a19c9c36f6dcb244e","id":3669462,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793931626707819,"prev":561246,"subject":"607742c8-22f0-436a-9bac-78f8e6449e8f","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-06 (303443 rows).

1. 0x90fabcc050a1ac2dfe30812ab547318c5a2866aaeb72ceca39c2e250df08bd8a
2. 0xb79e71b66496eb1f886ab9ee320bdaa6d5f87e193d5d7b37a1bf3ab868b6c780
3. 0xa0edf8170ed2217fc594b41f6d02e23e5a601a55f7427ec32e992974e8005ba5
4. 0xd7d5766cc14e5045559726c8a13f8ca031f1621ef0cfeecbace395abaced56b7
5. 0xdf32b761784fb8bac75ea212a7da59f0745f1171f14ec835251ebc4b1a4ee2bf
6. 0x80515d64114fea18e62a4a47c78733838ce9caeba0e0b2a68a73e21e18393aff
7. 0x03e90faee21f7621cd7b3c2c77f08d9117675f0a908108c048720e404f3a09a3
8. 0xa48fa1797f4dfbfe0b5d6f06deac8af353e29b153b2288914aeccf530aaa7a7a
9. 0xa9874f8fae31dfde75ff620e9eb948e76d33be1ee47eeede0c50129928cb7dd7
10. 0xcbd5f052773a1e3451bb683737fe538c5ae6406bbb578fe6cb54ad4010983429
11. 0xd117285d8693ac74693f4a5eb3d956c326e013c47d0a2636aa6ecf99acfa9dc3
12. 0xf92afe4923d8c45ab9d35d776144bdfefb4034a9352c870fd14c739e65118c75
13. 0x8dd991973a516f64b81d9e6d21d364b6cd22134ad9fed9096d52120919212afd
14. 0xa53a59d899d0a8f30f5d5ba66af2b300f2a07b2945067c18600cfbce284356e4
15. 0x2b6e1fccbe399ee4ae56623ea6c958d6ab4bdb0e2859743044f99fced1f59f02
16. 0x15b694ad919111e31e8112077ed1645b2f3c0d6f1433eaac3aaf1fff1c7c8aa5
17. 0xe98c6c6b56a21a2fc4c1edfe2563812e690a6a4336d11aef772ac1799d1ee7ca
18. 0xd422a75f6c3780ed53eca52b50bf40b8f17dc14cffb804142e44fc9f2672029d
19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1