Evidence row 221871

What was observed

{
  "count": 6,
  "tools": [
    {
      "description": "Normalize a public-data query into a typed evidence, freshness, latency, result, and cost plan. Compilation does not execute retrieval or contact providers.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "evidence": {
            "type": "object"
          },
          "freshness": {
            "type": "object"
          },
          "intent": {
            "maxLength": 2000,
            "minLength": 3,
            "type": "string"
          },
          "limits": {
            "type": "object"
          },
          "output": {
            "type": "object"
          },
          "policy": {
            "type": "object"
          },
          "sources": {
            "items": {
              "type": "object"
            },
            "maxItems": 16,
            "minItems": 1,
            "type": "array"
          }
        },
        "required": [
          "intent"
        ],
        "type": "object"
      },
      "name": "compile_query_plan"
    },
    {
      "description": "Return enabled, partial, contract-only, and unavailable growth metrics with privacy and interpretation boundaries.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "get_growth_metrics"
    },
    {
      "description": "Return publisher-declared Base network, contract, claim, community-role, custody, and risk-boundary information for 牛来 (NIULAI).",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "get_niulai_info"
    },
    {
      "description": "Retrieve one complete prepared resource profile, including evidence-backed facts and primary-source provenance, by its stable resource ID.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "resourceId": {
            "maxLength": 160,
            "minLength": 1,
            "pattern": "^[a-z0-9][a-z0-9._:-]{0,159}$",
            "type": "string"
          }
        },
        "required": [
          "resourceId"
        ],
        "type": "object"
      },
      "name": "get_resource"
    },
    {
      "description": "Search the public agent registry by capability and protocol. Preview data only.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "capability": {
            "description": "Capability identifier or substring",
            "type": "string"
          },
          "protocol": {
            "default": "any",
            "enum": [
              "any",
              "a2a",
              "mcp",
              "rest"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_agents"
    },
    {
      "description": "Search 350 prepared structured resource profiles by category, keyword or declared source hostname without contacting external providers.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "category": {
            "enum": [
              "agent-interoperability",
              "ai-discovery-and-registry",
              "ai-safety-provenance-and-audit",
              "data-knowledge-infrastructure",
              "enterprise-application-connectors",
              "platform-integration",
              "public-data-apis"
            ],
            "type": "string"
          },
          "cursor": {
            "default": 0,
            "maximum": 350,
            "minimum": 0,
            "type": "integer"
          },
          "limit": {
            "default": 25,
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          },
          "q": {
            "description": "Up to 8 whitespace-separated terms within 100 UTF-16 code units including outer whitespace; all terms must match literal case-insensitive substrings across public fields, declared publisher names or declared source hosts, in any order. Example: World Bank public, or worldbank.org public. Hostname matches include label-boundary subdomains; no full URLs, credentials, control characters, stemming or model inference. Ordering: exact resource ID first, then every term matched as a whole word in the title or a declared publisher name, or as a declared source host, then remaining substring matches; ties use stable resource ID order. Ranking is not a quality or ownership assertion.",
            "maxLength": 100,
            "minLength": 1,
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_resources"
    }
  ]
}

What the leaf hashes

{"body":"b9ddf7cde94cc67c26dcfe120b9b98ae32c1585e96bce45f6423f9db9bc0f5c0","id":221871,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793027657721725,"prev":null,"subject":"d267b623-fe83-4bab-8a2d-3411dd47e9bd","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. 0xd5eaaf438808d9ab1ca17b504ca89761ae05443dcd3bc51ccc2c34048b3e56f9
2. 0x457b7b49112f6a0b0106a7324801474af096cc3ddb8f4e1dc346603d6c56ef5c
3. 0x97c7be12ceb5a3c0a184a717201b690f13eef75cf5db226e97b9939aa26395fe
4. 0xe6b051f05e38dc7c3e7206b668605759d7572f2cfbe4f3e4c043d5db565317ef
5. 0x95e0aeb4847e0596229f59ea271fd1da8fcc7fb6c933a9d3851806b40f0ea166
6. 0xe5c969685725b8c10956c144a28ad4eabcda5ee6ab49c0331ee86223cb77a1f2
7. 0x974bcb3fdfcb8317db7166e8152ed059b73b06f969083e4fecdd62d7f919c8a2
8. 0xd01ce33f09cad2332e3ba06ab9178049418cab9e54644b83266c35335105f78d
9. 0x439d38ba7a712c2155b0a828ec1800ddcf47fe0115436016c8a2b1266ab2cd55
10. 0x90db080e84cc49e02327fe570e893ec90666ec445e285fba4414255e78f59735
11. 0xb662623cf3d981ba2c8b763c6eb8f856021264a195ee47844bfa430e2ef3597f
12. 0x7026808261896a203198354548e5e8cabce4a06e89d077c172084841b47ae119
13. 0x3199db04c2c73c3483386a86bf503eafde5af103465608156e2e5f42e72a6fbe
14. 0x6b927d53caa5125cdba9255612d524976c691f8672796c3f0885ba2c5b3af1ad
15. 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae