Evidence row 263889

What was observed

{
  "count": 8,
  "tools": [
    {
      "description": "Inspect an AI agent's trust score (0-100), clearing reliability, Sybil wash-trade penalty flags, and corporate KYA backing on Base",
      "inputSchema": {
        "properties": {
          "agentId": {
            "description": "The ERC-8004 agent token ID or registered identifier (e.g. '124595')",
            "type": "string"
          },
          "chainId": {
            "default": 8453,
            "description": "Base chain ID (8453 for Mainnet, 84532 for Sepolia)",
            "type": "number"
          }
        },
        "required": [
          "agentId"
        ],
        "type": "object"
      },
      "name": "nullclear_check_reputation"
    },
    {
      "description": "Fetch multi-exchange spread-verified crypto spot prices (ETH/USDC, BTC/USDC, SOL/USDC, BASE/USDC) with cryptographic NullClear invariant receipts. Works out-of-the-box with zero configuration (10 free daily calls included).",
      "inputSchema": {
        "properties": {
          "pair": {
            "default": "ETH/USDC",
            "description": "Trading pair symbol (e.g. 'ETH/USDC', 'BTC/USDC', 'SOL/USDC')",
            "type": "string"
          }
        },
        "required": [
          "pair"
        ],
        "type": "object"
      },
      "name": "nullclear_crypto_market_oracle"
    },
    {
      "description": "Search the live NullClear Ecosystem Directory for audited, high-uptime x402 & ERC-8004 APIs by topic/keyword, category, minimum uptime, or max latency. Automatically returns the NullClear-protected Zero-Loss Proxy URL ('https://api.nullclear.dev/https://...') for each endpoint.",
      "inputSchema": {
        "properties": {
          "category": {
            "description": "Category filter (e.g. 'oracle', 'security', 'data', 'ai')",
            "type": "string"
          },
          "maxLatencyMs": {
            "default": 2000,
            "description": "Maximum acceptable edge round-trip latency in ms (default 2000)",
            "type": "number"
          },
          "minUptime": {
            "default": 95,
            "description": "Minimum rolling uptime score percentage (0-100, default 95)",
            "type": "number"
          },
          "query": {
            "description": "Topic or keyword search (e.g. 'oracle', 'security', 'token', 'wallet', 'price')",
            "type": "string"
          },
          "verifiedOnly": {
            "default": true,
            "description": "Only return verified x402 endpoints (default true)",
            "type": "boolean"
          }
        },
        "type": "object"
      },
      "name": "nullclear_discover_verified_x402_apis"
    },
    {
      "description": "Execute an x402-gated HTTP API call through NullClear deferred schema escrow. Guarantees payment is only settled if upstream returns valid data matching your schema contract. Supports 10 free daily trial calls with zero wallet setup.",
      "inputSchema": {
        "properties": {
          "fallbacks": {
            "description": "Ordered fallback candidates for autonomous multi-seller failover routing (max 3)",
            "items": {
              "type": "object"
            },
            "type": "array"
          },
          "invariants": {
            "description": "Deep value invariants (numeric bounds, regex, forbidden substrings, timestamp freshness)",
            "items": {
              "properties": {
                "eq": {},
                "gt": {
                  "type": "number"
                },
                "gte": {
                  "type": "number"
                },
                "lt": {
                  "type": "number"
                },
                "lte": {
                  "type": "number"
                },
                "maxLength": {
                  "type": "number"
                },
                "maxStalenessSeconds": {
                  "type": "number"
                },
                "minLength": {
                  "type": "number"
                },
                "neq": {},
                "notContains": {
                  "items": {
                    "type": "string"
                  },
                  "type": "array"
                },
                "path": {
                  "description": "Dot-notation property path",
                  "type": "string"
                },
                "pattern": {
                  "type": "string"
                }
              },
              "required": [
                "path"
              ],
              "type": "object"
            },
            "type": "array"
          },
          "jsonSchema": {
            "description": "JSON Schema draft-07 contract that response must strictly satisfy",
            "type": "object"
          },
          "method": {
            "default": "GET",
            "enum": [
              "GET",
              "POST",
              "PUT",
              "DELETE"
            ],
            "type": "string"
          },
          "minTrustScore": {
            "default": 50,
            "description": "Minimum acceptable trust score for seller (0-100, default 50)",
            "type": "number"
          },
          "rejectRefusals": {
            "default": true,
            "description": "Reject canonical LLM refusal strings (default: true)",
            "type": "boolean"
          },
          "requiredFields": {
            "description": "Field paths that must exist in response",
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "sellerAgentId": {
            "description": "Seller's agent ID for reputation check and Sybil wash-trade gating",
            "type": "string"
          },
          "spendPolicy": {
            "description": "Outbound spend firewall limits (maxPerCallAtomic, maxDailyWalletAtomic)",
            "type": "object"
          },
          "targetUrl": {
            "description": "Upstream API endpoint demanding x402 payment",
            "type": "string"
          }
        },
        "required": [
          "targetUrl"
        ],
        "type": "object"
      },
      "name": "nullclear_escrow_x402_call"
    },
    {
      "description": "Zero-config drop-in URL fetcher with automatic Canonical LLM Refusal Guard, HTTP 5xx crash guard, empty-JSON guard, and cryptographic execution receipt. Protects agents from hallucinated or broken API responses.",
      "inputSchema": {
        "properties": {
          "body": {
            "description": "Optional JSON string body for POST requests",
            "type": "string"
          },
          "method": {
            "default": "GET",
            "enum": [
              "GET",
              "POST"
            ],
            "type": "string"
          },
          "url": {
            "description": "Target HTTPS URL to fetch and verify through NullClear Auto-Guard",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "nullclear_safe_fetch"
    },
    {
      "description": "Audit any Base ERC-20 token address for honeypot risk, buy/sell taxes, verified bytecode, and x402 compatibility via NullClear Bazaar. Works out-of-the-box with zero configuration (10 free daily calls included).",
      "inputSchema": {
        "properties": {
          "tokenAddress": {
            "default": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "description": "Base ERC-20 token contract address (e.g. '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913' for USDC)",
            "type": "string"
          }
        },
        "required": [
          "tokenAddress"
        ],
        "type": "object"
      },
      "name": "nullclear_token_security_audit"
    },
    {
      "description": "Verify an agent's Know Your Agent (KYA) corporate liability mandate, active validity, and whether a proposed transaction amount is within corporate limits",
      "inputSchema": {
        "properties": {
          "agentId": {
            "description": "The ERC-8004 agent token ID",
            "type": "string"
          },
          "chainId": {
            "default": 8453,
            "description": "Base chain ID (default 8453)",
            "type": "number"
          },
          "transactionAmountUsd": {
            "description": "Amount in USD intended to spend in the transaction",
            "type": "number"
          }
        },
        "required": [
          "agentId",
          "transactionAmountUsd"
        ],
        "type": "object"
      },
      "name": "nullclear_verify_kya_mandate"
    },
    {
      "description": "Check any wallet or agent address on Base for OFAC sanctions, Sybil wash-trading concentration flags, and ERC-8004 counterparty reputation. Works out-of-the-box with zero configuration (10 free daily calls included).",
      "inputSchema": {
        "properties": {
          "chainId": {
            "default": 8453,
            "description": "Base chain ID (default 8453)",
            "type": "number"
          },
          "walletAddress": {
            "description": "0x wallet address or ERC-8004 agent ID to inspect",
            "type": "string"
          }
        },
        "required": [
          "walletAddress"
        ],
        "type": "object"
      },
      "name": "nullclear_wallet_risk_score"
    }
  ]
}

What the leaf hashes

{"body":"cc83f0b0f4bf7f915e83c789f5988cc7fb47a2a9d4137de8d566557a193b67b7","id":263889,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793033818662803,"prev":null,"subject":"932c3f74-a59f-4bac-a868-5ec01471d08d","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. 0x46f624627d0b0ff98c0513b0ee6fe93710065b6680e8612f0467bf054cd3e72e
2. 0x582668c5cdea37838055986cb5b115d375b888f224e6309a23bc2fad7511b83e
3. 0xb79f641e7098fa827284022fa11a4ffd98d7db9756be1ad77926447e67bf01da
4. 0x80ac472bb0b1a73affe0d612c35083ef91e5419f8a9926012fdc979c32250f9d
5. 0xbe8a86853b01d4acba12fd5fdd327ff486560cab6f4c5965c489fd59dc8e5939
6. 0x253caa221118d0d8e579e6b07218803306c9835d93f95e0b97221bf8f6db34d7
7. 0xc495d5c46fd6e6850c64e0bcc63457e13768ee103ad177dd6202465dc097b1cf
8. 0x03ea4f03d01c29b0ab565fc3c176e6c10ad466bf9aae3e82ca6cd92e7c2e9997
9. 0x2dd39c2b6b9680c202afaaa5570ddd7eedb85cf3d8cdc580ef143cd532bc5aae
10. 0xcd934e2b871408ef0d8f8e8cb8b358f8962f1b0c7e1c705d07cb56341c09a284
11. 0xdbfd78a5599cc272407d120acb838567e0679d241216572c603e875a5947fb2e
12. 0x804dd9d5afe0f1a780e24099fb6b21f5f20545893ea0eeddf5fb9114e2f3edd5
13. 0x54b29089c0a3cbbd6ddbe58944696110984dd5f418275cb1b77f957c56da8eab
14. 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae