Evidence row 257503

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agents.crowdspark.me/v1/bundle/token-preflight"
    ]
  ],
  "name": "Agent Tools",
  "owner_address": "0x0dea0030a17bf886543a757c55924710258c2eec",
  "raw": {
    "accepts": [
      {
        "amount": "4000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x0dEA0030A17BF886543a757c55924710258c2eec",
        "scheme": "exact"
      }
    ],
    "description": "Token preflight for agents about to swap, list or pay with a token on Base, Ethereum, Optimism, Arbitrum or Polygon: contract and standard check, name, symbol, supply, proxy and owner flags, a 0-100 structural risk score with reasons, plus a simulated ERC20 transfer gas cost in USD. Not a honeypot audit.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "chain": "base"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "risk": {
                "level": "medium",
                "reasons": [
                  "upgradeable or proxy contract (zeppelinos (legacy unstructured storage))",
                  "has an owner address"
                ],
                "score": 30
              },
              "token": {
                "chain": "base",
                "decimals": 6,
                "standard": "ERC20",
                "symbol": "USDC"
              },
              "transfer_gas": {
                "fees": [
                  {
                    "est_cost_usd": 0.00065,
                    "tier": "standard"
                  }
                ],
                "gas_units": "45415"
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "address": {
                      "description": "Token contract address",
                      "type": "string"
                    },
                    "chain": {
                      "description": "Default base",
                      "enum": [
                        "base",
                        "ethereum",
                        "optimism",
                        "arbitrum",
                        "polygon"
                      ],
                      "type": "string"
                    },
                    "from": {
                      "description": "Optional holder address for a realistic transfer simulation",
                      "type": "string"
                    }
                  },
                  "required": [
                    "address"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-26T15:42:38.421Z",
    "quality": {
      "lastCalledAt": "2026-10-26T15:42:38.421Z"
    },
    "resource": "https://agents.crowdspark.me/v1/bundle/token-preflight",
    "serviceName": "Agent Tools",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Token preflight for agents about to swap, list or pay with a token on Base, Ethereum, Optimism, Arbitrum or Polygon: contract and standard check, name, symbol, supply, proxy and owner flags, a 0-100 structural risk score with reasons, plus a simulated ERC20 transfer gas cost in USD. Not a honeypot audit."
}

What the leaf hashes

{"body":"3eb75ee8b01875e5fe2ff9e5b66dcea66596f53334eea149206378fac68aaa0e","id":257503,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793029766319890,"prev":null,"subject":"x402_bazaar:https://agents.crowdspark.me/v1/bundle/token-preflight","subject_kind":"source_record"}

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. 0x4397a9bd8a25dddedffaac8204840ed8482981d32f2ef5f37f93538a7232c940
2. 0x062c51bc34ec7f7af173b5a007777c9c14bab8a252e175b7f1b39401e45d5d9c
3. 0x9a6863267cbf1b5411355f30b4b9a9b34b25cf8fc6d7382fae8ba5baaaa2ce36
4. 0x7a4c03d4790a29fa708825be2d06a9d85d352c9df3f9665f646d5a6daa385784
5. 0x346a3e3d2fb912c167498b665f0c36f63ca9bde61b16eac226c425f3643261e3
6. 0x05d1a3c9143fd9502385463608849f6136dc9e6e80dae605c1587a87c69953e3
7. 0xcc677ed9edb46f3eaf2a5ff7c4c88bfb8ab2642bc99d3e53e77de2d1952d28d7
8. 0xa6e362ee770c7ae7cef4e22db3d8a98f0b56006fb6dbbe9130d34643abf5edfb
9. 0xa8a432f0247bf1cbe581bfb2fc9b56b36482b7652c02cc81d89053ba073aedbb
10. 0xa01b5bca0c214269697f527524974087b06149387d7cbefda814e53051695c9d
11. 0x60b91f773fa3c91ef752edc3e72b14aec43590de73fb46a458b7100f8e74b4a7
12. 0x2b1b47804e83988d7fd5ed8179b2334f3f43b318109b54142f6c6bd749076f9e
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