Evidence row 71388

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://automaton-tx-explainer.vercel.app/v1/base/contract-risk"
    ]
  ],
  "name": "Base Contract Risk Heuristics",
  "owner_address": "0x679af3a893edd0aef4ac4c7776ba581b238c0717",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x679af3a893eDd0AeF4ac4c7776Ba581b238C0717",
        "scheme": "exact"
      }
    ],
    "description": "Heuristic risk flags for a Base contract from free public data: Sourcify verification, upgradeable proxy + admin, owner type, mint/pause/blacklist/fee selectors, bytecode size. Not an audit or financial advice.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "capabilities": {
                "mint": [
                  "mint(address,uint256)"
                ]
              },
              "disclaimer": "...",
              "findings": [
                {
                  "note": "Mint function present",
                  "severity": "medium"
                }
              ],
              "heuristicScore": 5,
              "ownerType": "eoa",
              "proxy": {
                "standard": "EIP-1967"
              },
              "riskLevel": "medium",
              "sourcify": {
                "contract": {
                  "verified": true
                }
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "address": {
                      "description": "Base contract address",
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "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"
        }
      },
      "builder-code": {
        "info": {
          "a": "bc_a1qq0mzd"
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": false,
          "properties": {
            "a": {
              "description": "App builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            },
            "s": {
              "description": "Service builder codes",
              "items": {
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "maxItems": 11,
              "type": "array"
            },
            "w": {
              "description": "Wallet builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            }
          },
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-24T19:18:13.936Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-24T19:18:13.782Z"
    },
    "resource": "https://automaton-tx-explainer.vercel.app/v1/base/contract-risk",
    "serviceName": "Base Contract Risk Heuristics",
    "tags": [
      "base",
      "onchain",
      "evm",
      "crypto"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Heuristic risk flags for a Base contract from free public data: Sourcify verification, upgradeable proxy + admin, owner type, mint/pause/blacklist/fee selectors, bytecode size. Not an audit or financial advice."
}

What the leaf hashes

{"body":"1b8bf994c01b3e23e374a28e76e220780c931a22e3717a4cd149b6683562f203","id":71388,"kind":"listing","method":"baseline/1","observed_us":1793025482088193,"prev":null,"subject":"x402_bazaar:https://automaton-tx-explainer.vercel.app/v1/base/contract-risk","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. 0x052de251b3e73c4fd866358a4490c6ca3728c719cd9a7fa084bc828de49b38da
2. 0xe721123915d3f7965ac59e96839d0265ae495f8439d2517b88dce77c12db0130
3. 0x3d82c98104729b871f73bfbcdbe5c2625c123cfc48470647b6aa2be1c6a702a3
4. 0x03fee7dd95e631bbbcb9d380c95c606ec3842768623bd88129ddef456595d6f8
5. 0x326819fa9480c021b90e3238aaad5ad601d7ecedc45fb235784c88d77a5f2ba2
6. 0xce96d6f9fbd8e6b5fa40ae8f8e9574974b2941f6e3d1fbb6424abe17fa6eb2f6
7. 0x344596306ea4807c022199f86d74541b9efae3d3ea0c0abc7eef3bd3c28dcc71
8. 0x38b66d9aefe3456fcfb32efdbcdbc033be177dc67886ffa59ee947a9c5ba8abd
9. 0x38552143162cfe72f31e41342d68bf6d0db53dbe3dcc62b5beafa04325bfdc5b
10. 0xa3fd99b4d14aebe36a36910f38fbd23ee9ab7b5d169eb4cf8da16b4084155357
11. 0xbc986b35695070cad9d398880439ec872b3a6634ffe7036fde0d0dfde7eabfda
12. 0x23033d81d9f4be06225e4276d276e0e8e02abc173d156a1b9a8fd5e4803ad199
13. 0x610fdf3e989af0a6b4a400a3a8aab9156d757f8c96efe4e9d0594dfd04de1cc0
14. 0xd1d3499072edb10edc68f84bcae2365d2ab534df689250cab18c751b6f13b6ff
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae