Evidence row 223298

What was observed

{
  "count": 5,
  "tools": [
    {
      "description": "Create a cited research decision memo from public sources. Accepts a research question plus an optional company, domain, time window, and depth. Returns an executive answer, 5 to 8 cited public source URLs, a claim/evidence matrix, conflicting evidence, confidence levels, risks and unknowns, and three next research actions as JSON and Markdown. For business, technical, and general public research. Refuses private-person dossiers, fabricated citations, restricted scraping, trading signals, and automated medical, legal, financial, employment, or insurance decisions. Price: $0.99 USDC. An unpaid call returns an x402 PaymentRequired tool result and does not run the tool. Payment is verified and settled before the tool runs.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "company": {
            "description": "Optional company or organization name.",
            "maxLength": 200,
            "minLength": 1,
            "type": "string"
          },
          "depth": {
            "description": "Optional retrieval depth. Defaults to standard.",
            "enum": [
              "quick",
              "standard",
              "deep"
            ],
            "type": "string"
          },
          "domain": {
            "description": "Optional public company domain or website.",
            "maxLength": 2048,
            "minLength": 4,
            "type": "string"
          },
          "question": {
            "description": "Public business, technical, or general research question.",
            "maxLength": 2000,
            "minLength": 8,
            "type": "string"
          },
          "time_window": {
            "description": "Optional evidence window. Defaults to year.",
            "enum": [
              "24h",
              "day",
              "7d",
              "week",
              "30d",
              "month",
              "90d",
              "1y",
              "year",
              "all"
            ],
            "type": "string"
          }
        },
        "required": [
          "question"
        ],
        "type": "object"
      },
      "name": "cited_research_brief"
    },
    {
      "description": "Create a source-linked company intelligence report from a public company website. Researches company-owned pages and recent external sources, returning an official profile, offerings, market signals, recent developments, risks, citations, confidence, and diagnostics. For agent workflows, vendor review, sales research, and partnership screening; not for high-stakes automated decisions. Price: $0.25 USDC. An unpaid call returns an x402 PaymentRequired tool result and does not run the tool. Payment is verified and settled before the tool runs.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "focus": {
            "description": "Optional research priorities such as products, partnerships, or risks.",
            "items": {
              "maxLength": 100,
              "minLength": 1,
              "type": "string"
            },
            "maxItems": 8,
            "type": "array"
          },
          "website": {
            "description": "Public company website or domain, such as https://example.com.",
            "maxLength": 2048,
            "minLength": 4,
            "type": "string"
          }
        },
        "required": [
          "website"
        ],
        "type": "object"
      },
      "name": "company_intelligence_report"
    },
    {
      "description": "Create a fast, compact, source-linked company snapshot from a public company website. One search of the company's own pages returns the name, what the company does, offerings, headquarters and size only when a retrieved page states them, 3 to 5 source URLs, and confidence. For cheap agent lookups and first-pass screening. Public pages only. Refuses private-person dossiers and does not invent citations. Not a substitute for the full company intelligence report and not for high-stakes automated decisions. Price: $0.03 USDC. An unpaid call returns an x402 PaymentRequired tool result and does not run the tool. Payment is verified and settled before the tool runs.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "website": {
            "description": "Public company website or domain, such as https://example.com.",
            "maxLength": 2048,
            "minLength": 4,
            "type": "string"
          }
        },
        "required": [
          "website"
        ],
        "type": "object"
      },
      "name": "company_snapshot"
    },
    {
      "description": "Free catalog of NOVA MCP tools, USDC prices, and example inputs. Calling it does not charge and does not run research.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "nova_catalog"
    },
    {
      "description": "Recover and validate broken structured output from LLMs and AI agents. Extract JSON hidden in prose or Markdown, repair malformed JSON, enforce a supplied JSON Schema, safely coerce optional types/defaults, report exact validation errors, and return a deterministic retry prompt when output still fails. Useful for tool calls, agent workflows, automation pipelines, and API integrations. Price: $0.01 USDC. An unpaid call returns an x402 PaymentRequired tool result and does not run the tool. Payment is verified and settled before the tool runs.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "options": {
            "additionalProperties": false,
            "properties": {
              "applyDefaults": {
                "description": "Apply default values from the schema.",
                "type": "boolean"
              },
              "coerceTypes": {
                "description": "Safely coerce primitive values.",
                "type": "boolean"
              },
              "removeAdditional": {
                "description": "Remove fields excluded by additionalProperties: false.",
                "type": "boolean"
              }
            },
            "type": "object"
          },
          "rawOutput": {
            "description": "Raw LLM or AI-agent output. Prose, Markdown fences, and malformed JSON are accepted.",
            "maxLength": 200000,
            "minLength": 1,
            "type": "string"
          },
          "schema": {
            "description": "Optional JSON Schema Draft 2020-12 used to validate the recovered value.",
            "type": "object"
          }
        },
        "required": [
          "rawOutput"
        ],
        "type": "object"
      },
      "name": "recover_agent_output"
    }
  ]
}

What the leaf hashes

{"body":"f4546b4fbe74d6a9a12b6c6cf3abbb4a4196f98396c6b5cdd45d7eaf8dd116a6","id":223298,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793028633603290,"prev":null,"subject":"4acebe2f-806d-4cb4-8694-59ebe0f01bec","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. 0x2dded578588c5e039b313a33fdcb2c01fded6391eb66bb410a7c344e04ca00b0
2. 0x18bb114faea88bd6a635c1f382fc61f76f65085808fe027e316cfdd842abdba9
3. 0xc4e5be0eb3209fa09d58a95d1d41ccb5bcb312e7b8fa17550deb05485f80d5f9
4. 0x28148c38b9b93ea49f77d61767615d29778825e56b075e56af2328986a14fa11
5. 0xe36293c95beb4bde8b62f7e5acd38c9b1625f67ace390f67ab3cfca3fc2ad249
6. 0x4b19427e17b4a673e4b94faea20f5cc36aa351db090851a6b5f13af49bd5dfe7
7. 0x2a617e2625571fab6b34e3b747b2c813985d84f1341299986d23e9c12fbbca58
8. 0xffe52944e860353d4c996881bf1004c7e55698c8e63a3220ef3d22586a47c5aa
9. 0x36c7a4604aff36363924174b7e9f04643fef946b698610045ddb5b142794756b
10. 0x1859ecce266f09009e2bb998b57fb91dc34a74ec4cf0a4a573732ebfec820dee
11. 0x0a14d7531a251f3320f61b058ccd68e743331eaf8f3058982b949d68be76670c
12. 0xf89d9951e0a8e08b9cf11177a1f4e0fd86d9facc5dfecaabbfe564675ebefef7
13. 0xb87e8b32cda179c9e632e227bbd8a6d1f6f61d9d81bb92dbd4dd835d2b3b5caa
14. 0x683955a5b2250ad50568d022a6580d8739b6aff1356779d72a773b088e7c289c
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae