Evidence row 71448

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://base-token-check.fly.dev/v1/counterparty-check"
    ]
  ],
  "name": "Base Payee Safety",
  "owner_address": "0x540c2aa2526c9c8c2fb4632f0fed668c36424cd5",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x540c2aA2526C9c8c2fb4632f0fED668C36424Cd5",
        "scheme": "exact"
      }
    ],
    "description": "Check a Base address before an agent pays or approves it. Input: one address. Output: allow or warn. Reports wallet or contract, whether the wallet has sent a transaction, whether a contract already had code 7 days ago, and whether it is a proxy (EIP-1967, EIP-1167, or implementation()). Warns on contract_is_new, proxy, or no_outgoing_transactions. Wallet age is unknown. A deleted contract looks like a wallet. Not proof of theft.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "address": "0x540c2aA2526C9c8c2fb4632f0fED668C36424Cd5"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "address": "0x540c2aA2526C9c8c2fb4632f0fED668C36424Cd5",
              "kind": "wallet",
              "reasons": [
                {
                  "code": "no_outgoing_transactions",
                  "detail": "This wallet has not sent a Base transaction."
                }
              ],
              "verdict": "warn"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "address": {
                      "description": "Wallet or contract on Base to check before paying or approving it.",
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "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"
        }
      }
    },
    "lastUpdated": "2026-10-10T18:02:10.182Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-10T18:02:10.043Z"
    },
    "resource": "https://base-token-check.fly.dev/v1/counterparty-check",
    "serviceName": "Base Payee Safety",
    "tags": [
      "payee",
      "wallet",
      "proxy",
      "new-contract",
      "approval"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Check a Base address before an agent pays or approves it. Input: one address. Output: allow or warn. Reports wallet or contract, whether the wallet has sent a transaction, whether a contract already had code 7 days ago, and whether it is a proxy (EIP-1967, EIP-1167, or implementation()). Warns on contract_is_new, proxy, or no_outgoing_transactions. Wallet age is unknown. A deleted contract looks like a wallet. Not proof of theft."
}

What the leaf hashes

{"body":"861523dbab39e76500ea7608cc5e3b904312208ce8baca6f95bd928d9ca2819a","id":71448,"kind":"listing","method":"baseline/1","observed_us":1793025482167639,"prev":null,"subject":"x402_bazaar:https://base-token-check.fly.dev/v1/counterparty-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. 0x08533732e831a6d5ef3eb91221b285f972b32cecdd81bf1282fd1310a959d5e1
2. 0x928b24fe8081e4d7adeb1c20799cc6f413825d5ae22225fd8b62af2b0aa64342
3. 0xafd47d89a57b126d39e9d9ecaf97baf30d0acfb3996c8b66c6801e573d9fe0c9
4. 0x81e674b62a65985a9b88e4c5c11969df4a1006ddd80d38f22dc2117d91cfa479
5. 0x2610a4ce0a73c1e6167e31dd8a2705ac0d40f0d961581efd21d5ac3927aff53c
6. 0x55b0ba4d111220c15ff4eecd685bdaa94b49833ba16da12662785f75b3411ea3
7. 0x21e777095031621614ff951106104dac5abd4aba792520cfb9f4c21138ec8abc
8. 0x0d895cb495363a3f47489de298f03decf5169331a66f1887d987202f166ba681
9. 0x17487bdd8a24c59ee9743f1f5e4fe998668e6e05e30a4719999b9bec35cb8955
10. 0x8c7a98ae2cb4ce9806641729f82b9b19104c8b000de3727bbd7eb046927d1d21
11. 0x3585060104222ad1aae3396450719e555d4d013fa2b3a7b43777a1722ca9ce22
12. 0x6003e14d04cde1d24b195ac15b568dd483e04047e0f2ff64d9632a51a8f7123d
13. 0xe5a836cf25a8dfc72c9e3b6a69a7561a1f61f50f9cf36707d36f6e926aa15dec
14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae