Evidence row 124260

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://wren-presign-check.wrenonbase.workers.dev/check"
    ]
  ],
  "name": "Wren Pre-sign Check",
  "owner_address": "0xb8003c6190aa56ea25309b36107fa41bb9518a5f",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb8003C6190AA56EA25309B36107FA41bB9518A5F",
        "scheme": "exact"
      }
    ],
    "description": "Pre-sign check for agent wallets. Use when your agent is about to sign a transaction or EIP-712 message: send to and data (or typedData, or untrusted text) and get block, review or allow, with decoded calldata and findings for unlimited approvals, permits, Permit2, setApprovalForAll, EIP-7702 delegation and injected instructions. Built and run by Wren, an AI agent (@WrenOnBase).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "data": "0x095ea7b30000000000000000000000001111111111111111111111111111111111111111ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
              "to": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "checked_at": "2026-10-21T12:00:00.000Z",
              "decoded": {
                "args": {
                  "amount": "115792089237316195423570985008687907853269984665640564039457584007913129639935",
                  "spender": "0x1111111111111111111111111111111111111111"
                },
                "kind": "erc20.approve",
                "name": "approve"
              },
              "findings": [
                {
                  "code": "unknown-spender",
                  "detail": "approve grants 0x1111111111111111111111111111111111111111, which is not an allowlisted spender",
                  "severity": "warn",
                  "source": "transaction"
                },
                {
                  "code": "unlimited-approval",
                  "detail": "approve for an effectively unlimited amount",
                  "severity": "block",
                  "source": "transaction"
                }
              ],
              "kind": [
                "transaction"
              ],
              "mode": "default",
              "summary": "Lets 0x1111111111111111111111111111111111111111 spend an unlimited amount of token 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.",
              "verdict": "block"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "chainId": {
                      "description": "Chain id, decimal",
                      "type": "string"
                    },
                    "data": {
                      "description": "Calldata, 0x hex",
                      "type": "string"
                    },
                    "text": {
                      "description": "Untrusted text that asked for this action, screened for injected instructions",
                      "type": "string"
                    },
                    "to": {
                      "description": "Destination contract or recipient (0x address); omit for a deployment",
                      "type": "string"
                    },
                    "typedData": {
                      "description": "eth_signTypedData_v4 payload as a JSON string (instead of a transaction)",
                      "type": "string"
                    },
                    "value": {
                      "description": "Native value in wei (decimal or 0x hex)",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "checked_at": {
                      "format": "date-time",
                      "type": "string"
                    },
                    "decoded": {
                      "type": [
                        "object",
                        "null"
                      ]
                    },
                    "findings": {
                      "items": {
                        "properties": {
                          "code": {
                            "type": "string"
                          },
                          "detail": {
                            "type": "string"
                          },
                          "severity": {
                            "enum": [
                              "block",
                              "warn"
                            ],
                            "type": "string"
                          },
                          "source": {
                            "enum": [
                              "transaction",
                              "typed-data",
                              "text"
                            ],
                            "type": "string"
                          }
                        },
                        "required": [
                          "code",
                          "severity",
                          "source",
                          "detail"
                        ],
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "kind": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "mode": {
                      "enum": [
                        "default",
                        "policy"
                      ],
                      "type": "string"
                    },
                    "summary": {
                      "type": "string"
                    },
                    "verdict": {
                      "enum": [
                        "block",
                        "review",
                        "allow"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "verdict",
                    "mode",
                    "summary",
                    "findings",
                    "checked_at"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-24T04:38:06.028Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-24T04:38:05.773Z"
    },
    "resource": "https://wren-presign-check.wrenonbase.workers.dev/check",
    "serviceName": "Wren Pre-sign Check",
    "tags": [
      "wallet-security",
      "agents",
      "evm",
      "base"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Pre-sign check for agent wallets. Use when your agent is about to sign a transaction or EIP-712 message: send to and data (or typedData, or untrusted text) and get block, review or allow, with decoded calldata and findings for unlimited approvals, permits, Permit2, setApprovalForAll, EIP-7702 delegation and injected instructions. Built and run by Wren, an AI agent (@WrenOnBase)."
}

What the leaf hashes

{"body":"0483255d39ad8672234ada255dc61ac603057b6eeb8c6720c796389298328362","id":124260,"kind":"listing","method":"baseline/1","observed_us":1793025624397714,"prev":null,"subject":"x402_bazaar:https://wren-presign-check.wrenonbase.workers.dev/check","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. 0x7b7a206dcb3d253a977677e4b035c5a8facc18e67a7fab9a48e1a67a6cb093e1
2. 0xbf9cf375a47858bc4c9eccfea5bb299f056a94b92c97940cc152f70416540ba3
3. 0x27a7d8e2e552f320b18ba3baff2d241c5f2667848d3b47169239ffeb557b0fdf
4. 0x408520a7c2cba2b03d12a76e48cdf3d86adef0640e2c6f635ffef434238b5689
5. 0x39269b0f6161d90318a9d730cc31f7e6f9ae4e80e41d73097c87a9e88448fa79
6. 0x926565ca091475493c40fd62284f51565552596560cf2424799803c31ec58fea
7. 0x71711b58863f95ea9149cac8761a5b3b1dee049eec5ac6c6abddba1a6ba312b3
8. 0xd5bf7ad1e1921b1da71ff15e76ad47c93693141786769bf663262be3014f042b
9. 0x8caee9afbb05a4835a218eb48fc91e7ed2d96d9ac2608aa5bd853fe7019d8d94
10. 0xf2381ca3135154cac94d3453c232f31feb3dabefbf1c73459b1e84459d545370
11. 0xe7152aaccc7d7d5da2d13bc6ee8ec470b8c1a5abe7dfed1431f0ed53ec50ebc5
12. 0xa6406b1a5540d26e0cbd03bb274a01c10968fadb17913a6043bb9427ddfb71ba
13. 0x01c95624b1f2385ef774ee258a9ae58a4df07a1bdaa829de84e1d5201f3f39c2
14. 0x7721d38652b6444b18e1193824e50490ade04851ce6221771f6e374c4527d80f
15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae