Evidence row 2161951

What was observed

{
  "count": 6,
  "tools": [
    {
      "description": "Compare 2–4 Agent Index listings side by side. Facts only — not a ranking or recommendation.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "slugs": {
            "description": "Array of 2–4 agent slugs",
            "items": {
              "type": "string"
            },
            "maxItems": 4,
            "minItems": 2,
            "type": "array"
          }
        },
        "required": [
          "slugs"
        ],
        "type": "object"
      },
      "name": "compare_agents"
    },
    {
      "description": "Get one Agent Index listing by slug, with the canonical page URL and source citations.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "slug": {
            "description": "Agent slug, e.g. vanta",
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_agent"
    },
    {
      "description": "Return the curated alternatives list for a listed agent or vendor, in the same order as /alternatives/{slug}/. Facts only — not a ranking or recommendation.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "slug": {
            "description": "Agent slug, e.g. vanta",
            "type": "string"
          },
          "tool": {
            "description": "Agent or vendor name, e.g. Vanta",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_alternatives"
    },
    {
      "description": "Get one audit firm by slug, including listing_tier, the Verified flag, and accreditation registry URLs for official cross-checks.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "slug": {
            "description": "Auditor slug, e.g. schellman",
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_auditor"
    },
    {
      "description": "Search the Agent Index open dataset of GRC, security, and operations AI agents. Defaults to the main GRC directory. Named products from the agent-security catalog are returned as a separate agent_security group. Pass segment=agent-security for that catalog only, or segment=all for both. Returns canonical theagentindex.io URLs. Not a ranking.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "category": {
            "description": "Agent category slug (compliance, security, risk, privacy, business-ops, code-security, or security-catalog slugs agent-identity, agent-governance, agent-runtime-security, agent-secrets, guardrails-prompt-injection, mcp-gateways-scanners, ai-red-teaming)",
            "type": "string"
          },
          "framework": {
            "description": "Compliance framework filter, e.g. SOC 2, ISO 27001, HIPAA",
            "type": "string"
          },
          "limit": {
            "default": 20,
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          },
          "pricing_model": {
            "description": "Pricing model filter, e.g. annual-contract, usage, quote",
            "type": "string"
          },
          "query": {
            "description": "Free-text query over name, vendor, summary, description, categories and frameworks",
            "type": "string"
          },
          "segment": {
            "description": "Catalog segment. Omit for the main GRC directory. \"agent-security\" for tools that secure or govern AI agents. \"all\" searches both. Default excludes the security catalog.",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_agents"
    },
    {
      "description": "Search compliance audit firms in Agent Index (Verified and registry-listed), labelled by listing tier. Cross-checked against official accreditation registries (ANAB, UKAS, NABCB, PCI SSC, HITRUST, FedRAMP, GovRAMP, Cyber AB, CERT-In, ISMAP, CPAverify). Not a ranking or endorsement.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "accreditation_body": {
            "description": "Accreditation body, e.g. ANAB, UKAS, PCI SSC QSA, CERT-In",
            "type": "string"
          },
          "country": {
            "description": "Headquarters or office country (US, United Kingdom, India, …)",
            "type": "string"
          },
          "framework": {
            "description": "Framework tag, e.g. SOC 2, ISO 27001, PCI DSS, CERT-In",
            "type": "string"
          },
          "limit": {
            "default": 20,
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          },
          "list": {
            "description": "Dated snapshot id: soc2-audit-firms, anab-iso-27001, or fedramp-3pao-soc2. Returns that list. Each row uses the same verified flag as other registry snapshots (false when the row is not a Verified listing). Not a ranking.",
            "type": "string"
          },
          "query": {
            "description": "Free-text query over firm name, headquarters, frameworks and accreditation bodies",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_auditors"
    }
  ]
}

What the leaf hashes

{"body":"c55ecd76461a5414a21f994854dc3bd6b619310c668bce2ed2861e53b695d03f","id":2161951,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793632164316621,"prev":1830319,"subject":"f8f3cfb6-f68d-4189-8a78-87b1177fc38a","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x4406010b4165e525a379615db879aa4e144c3c465ce54a1df5180a82b24eea0f
2. 0xd5367dcac2ff2c204831ca2788bd7c1bb62d92d2ba11ee599f4103284ef663df
3. 0xb94c8318103dddd04d97e159c3805175bf1cefe0d0ceaa9a8fe094a2efeab630
4. 0xddb83325760a3b6ec8c2a2e00b19fb52fcbe654eeb2081a941c278040710bd41
5. 0xea654a4d0c7b1d20b7c4d600fd8030e3c8320afb95a6b99cbd8c159f31e05a86
6. 0xe6eed12cb27fc10d4ebc3d781e4c5f6b6e85e78c5902f9fcf06eadb18b1aad7e
7. 0x3cc2076d4a541675b44c0afa128b5d47ceff199672e60826e254501ec1ba6eea
8. 0xfae003a1280ee7878d6d03908a28b26e954475d6985be13f2ed65ffa65bdffcf
9. 0xeab2bda937fd13377420587dfc4656128ef7ebadb61e9db10576ad3c87a471f0
10. 0xb4ebca4edd2b1af8e104bd949a8d9fc862f07f960fd5488877571fe5a05145bd
11. 0x32d8aa50bdb63c965d4627f30c8584b5b109ccd5950b3ed3d307ea75d46ed970
12. 0xe92478cc3eab4cc4c9e8fd5dbc3001cb0971587042ed8624c5712d5ceb777263
13. 0xd4651434698f4d5f8d2255b9d81f1cf47a7c3da7e2321b09b05fc8ddc31165a2
14. 0x75634d9d67fe6c75f98d15ecdced550aaaa0b303b51c1355fcc39f82416bc504
15. 0x3217f821997a6d778dcf0814a25b1296c55ab77710c675e7b15695d25a6ce67d
16. 0x8760c227928c5295506cd8606e763f86cf8cd2a549820fab4dc86d29ca0d816d
17. 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af