Evidence row 408702

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agent-data-tools.revmesh2074.workers.dev/base/token-balance"
    ]
  ],
  "name": "Base ERC-20 balance",
  "owner_address": "0x2074c40346ae2a90e0e4a391bcee6f16bf5277f5",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2074C40346Ae2A90e0E4A391bceE6F16BF5277f5",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0x2074C40346Ae2A90e0E4A391bceE6F16BF5277f5",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0x2074C40346Ae2A90e0E4A391bceE6F16BF5277f5",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "82wfSCZhCmZA7zwqqt6Q3FG8nqYBwUvbThP6M97fa9Q6",
        "scheme": "exact"
      }
    ],
    "description": "Base ERC-20 balance. ERC-20 token balance of a wallet on Base (USDC, USDT, WETH or any token, via balanceOf): raw amount, decimals, symbol and the human-readable amount, live from the token contract. Use to check stablecoin or token holdings before a transfer or trade; for the native coin use base_balance. Both inputs are 0x addresses (40 hex characters); no contract returns 404 and a non-ERC-20 contract 422, both uncharged.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
              "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
              "balance": "2.5",
              "chain": "Base",
              "chainId": 8453,
              "decimals": 6,
              "raw": "2500000",
              "symbol": "USDC",
              "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "address": {
                      "description": "0x wallet address",
                      "examples": [
                        "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
                      ],
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "type": "string"
                    },
                    "token": {
                      "description": "Token: a ticker such as USDC, USDT, WETH or DAI, or the 0x ERC-20 contract address",
                      "examples": [
                        "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                      ],
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "type": "string"
                    }
                  },
                  "required": [
                    "token",
                    "address"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "address": {
                      "type": "string"
                    },
                    "balance": {
                      "type": "string"
                    },
                    "chain": {
                      "type": "string"
                    },
                    "chainId": {
                      "type": "number"
                    },
                    "decimals": {
                      "type": "number"
                    },
                    "raw": {
                      "type": "string"
                    },
                    "symbol": {
                      "type": "string"
                    },
                    "token": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "builder-code": {
        "info": {
          "a": "bc_09e30bdm"
        },
        "schema": {
          "$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"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792567527/bazaar-icons/a67d2da18841a325.png",
    "lastUpdated": "2026-10-27T00:54:21.078Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-22T16:11:04.11Z"
    },
    "resource": "https://agent-data-tools.revmesh2074.workers.dev/base/token-balance",
    "serviceName": "Base ERC-20 balance",
    "tags": [
      "base",
      "erc20",
      "token",
      "balance",
      "blockchain"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Base ERC-20 balance. ERC-20 token balance of a wallet on Base (USDC, USDT, WETH or any token, via balanceOf): raw amount, decimals, symbol and the human-readable amount, live from the token contract. Use to check stablecoin or token holdings before a transfer or trade; for the native coin use base_balance. Both inputs are 0x addresses (40 hex characters); no contract returns 404 and a non-ERC-20 contract 422, both uncharged."
}

What the leaf hashes

{"body":"9f25a592d29aade0bee4e8f5a8428f518e87ac6ab6e1c82df5ca28ba2ef9724c","id":408702,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793080316652182,"prev":60904,"subject":"x402_bazaar:https://agent-data-tools.revmesh2074.workers.dev/base/token-balance","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xbbe0b8381eed659dc910ec42722f1a5334eccb6c24d108ba7c91deff22c84160
2. 0x610db3be058620032c37c6bc305ab9c989c3b41d3651437c7de171689c36d5b8
3. 0xcc669c4ffa2794d82145752bf9fc7a73ea97e51ed7fd9c3ed66229260b099b6d
4. 0x502067144c35c65e3628766385f457984e793b44893a2212cb8ee3f2affd9cc4
5. 0x3da12d7c1286a992063044575a5faab58553cc33c3a7e05d2eca76b91f108923
6. 0x0630ad33e920eccf1b51f127b7afcf6a58dbf251f4c02e35697398e2d38fe343
7. 0xe3781bfbfb480e47047934170a5de0b66bc56e41e804b2f8049d5bd2d4eacaa5
8. 0x6689bd70d8b399af2784ba6b20c57e6e253379d105b6dc166fb46d316eb46ca2
9. 0x02850531b38cdbbf35c2bb3b17e39e16f3aca8a2996107b87dcc62968dec6299
10. 0xafd6b70c1465b8a2427d47ea40632cde7a6907f32f64f887c4cb460e460f7fdd
11. 0xaf79bfeaa8b78c501b6b72d2abd133b4a8958ea976a4458f01d1f54590268c1e
12. 0x5942c2574ffacd0c039c3cd1147d5ab0b6d34e0278203065ce21c437ae2a392d
13. 0xa4f69e2cf941a3f318d70734b59401dd27010a6bdffb5c32a28304db650a6f0b
14. 0xa453d1738637a5c663802d07ce095aa340c80d53a4288ae277a72e265868ce4e
15. 0x73341bb09dd901ca47f26173883431496e3d98d6b0fb5b89f36218126d46c5d4
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4