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Evidence row 63922

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://agentshelf.syntexa.ch/v1/base-eth-call
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
e66f3dbcfdaabcc5d670b06020c6da2a4b20a8f06232e8c4fcdcd18effec15df
Leaf
0x51b1419f14609bdb0b3578f21b97b335fcc340ad98210f62afba950e3ebe8064

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agentshelf.syntexa.ch/v1/base-eth-call"
    ]
  ],
  "name": "agentshelf.syntexa.ch/v1/base-eth-call",
  "owner_address": "0x1d61faa032d3f40d9c470d2bf3a3f53de0e55a38",
  "raw": {
    "accepts": [
      {
        "amount": "4000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x1D61FAA032d3f40D9C470D2bf3A3f53De0E55a38",
        "scheme": "exact"
      }
    ],
    "description": "Call when an agent needs a read-only Base eth_call. Send to and data (hex) or a function signature plus args. Optional from and block. Reverts return a decoded reason. No state change and no spend. Send JSON {\"to\":\"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\"data\":\"0x18160ddd\"}. Exact $0.004 USDC on Base. Try unpaid POST /v1/sandbox/base-eth-call first.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "data": "0x18160ddd",
              "to": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "billed": true,
              "block": "latest",
              "data": "0x18160ddd",
              "decoded": null,
              "from": null,
              "network": "eip155:8453",
              "ok": true,
              "receipt_id": "rcpt_01EXAMPLE000000000000000",
              "result": "0x00000000000000000000000000000000000000000000000000000000000f4240",
              "revert_data": null,
              "revert_reason": null,
              "success": true,
              "to": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "warnings": []
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "examples": [
                    {
                      "data": "0x18160ddd",
                      "to": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                    }
                  ],
                  "properties": {
                    "args": {
                      "description": "JSON array of arguments. Example: [\"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045\"]. A POST array is accepted. Requires signature.",
                      "maxLength": 2048,
                      "minLength": 2,
                      "type": "string"
                    },
                    "block": {
                      "description": "Block tag or number for eth_call. latest, finalized, safe, or a non-negative integer. Omit it for latest. The call is read-only.",
                      "type": "string"
                    },
                    "data": {
                      "description": "Calldata, 0x hex, at most 2048 characters. Example: 0x18160ddd (totalSupply()). Send data or signature, not both. eth_call cannot change state.",
                      "examples": [
                        "0x18160ddd"
                      ],
                      "pattern": "^0x[0-9a-fA-F]*$",
                      "type": "string"
                    },
                    "from": {
                      "description": "Optional eth_call from address. Example: 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045. It is not a transaction sender and nothing is spent.",
                      "type": "string"
                    },
                    "signature": {
                      "description": "Function signature. Example: decimals() or balanceOf(address)(uint256). args is a JSON array when the function has parameters. Send signature or data, not both.",
                      "maxLength": 180,
                      "minLength": 3,
                      "type": "string"
                    },
                    "to": {
                      "description": "Contract to call on Base. Example: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. The call is eth_call with no value, so it cannot change state.",
                      "examples": [
                        "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "to"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "additionalProperties": false,
                  "examples": [
                    {
                      "billed": true,
                      "block": "latest",
                      "data": "0x18160ddd",
                      "decoded": null,
                      "from": null,
                      "network": "eip155:8453",
                      "ok": true,
                      "receipt_id": "rcpt_01EXAMPLE000000000000000",
                      "result": "0x00000000000000000000000000000000000000000000000000000000000f4240",
                      "revert_data": null,
                      "revert_reason": null,
                      "success": true,
                      "to": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                      "warnings": []
                    }
                  ],
                  "properties": {
                    "billed": {
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "block": {
                      "examples": [
                        "latest"
                      ],
                      "type": "string"
                    },
                    "data": {
                      "examples": [
                        "0x18160ddd"
                      ],
                      "type": "string"
                    },
                    "decoded": {
                      "examples": [
                        null
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "from": {
                      "examples": [
                        null
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "network": {
                      "const": "eip155:8453",
                      "examples": [
                        "eip155:8453"
                      ],
                      "type": "string"
                    },
                    "ok": {
                      "const": true,
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "receipt_id": {
                      "examples": [
                        "rcpt_01EXAMPLE000000000000000"
                      ],
                      "type": "string"
                    },
                    "result": {
                      "examples": [
                        "0x00000000000000000000000000000000000000000000000000000000000f4240"
                      ],
                      "type": "string"
                    },
                    "revert_data": {
                      "examples": [
                        null
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "revert_reason": {
                      "examples": [
                        null
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "success": {
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "to": {
                      "examples": [
                        "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                      ],
                      "type": "string"
                    },
                    "warnings": {
                      "default": [],
                      "examples": [
                        []
                      ],
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "ok",
                    "receipt_id",
                    "billed",
                    "network",
                    "to",
                    "from",
                    "block",
                    "data",
                    "success",
                    "result",
                    "decoded",
                    "revert_reason",
                    "revert_data"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-17T08:29:13.035Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-17T08:29:12.843Z"
    },
    "resource": "https://agentshelf.syntexa.ch/v1/base-eth-call",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Call when an agent needs a read-only Base eth_call. Send to and data (hex) or a function signature plus args. Optional from and block. Reverts return a decoded reason. No state change and no spend. Send JSON {\"to\":\"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\"data\":\"0x18160ddd\"}. Exact $0.004 USDC on Base. Try unpaid POST /v1/sandbox/base-eth-call first."
}

What the leaf hashes

{"body":"e66f3dbcfdaabcc5d670b06020c6da2a4b20a8f06232e8c4fcdcd18effec15df","id":63922,"kind":"listing","method":"baseline/1","observed_us":1793025455804776,"prev":null,"subject":"x402_bazaar:https://agentshelf.syntexa.ch/v1/base-eth-call","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0x51b13f78c193bb69f3927f419e35219a72dcd1507cbf2dc32dc968ec3e91fdd5
  2. 0x692eff441e21ba38ad964f0f5ee9241b1ea012633e74b10b208574a77683a0c5
  3. 0x0490905771f00dcc90379caed81e070f1c0bffe58b1eea403eec92357aa882e5
  4. 0x8da46d6d89d5850f6a7413bebfdc37ebfdbf87928abfce22cc2d5cce0f98be94
  5. 0x0320e405b920e726e549d31bd23e0cce1c2bfadb0c1f40b5b7f367157ea55555
  6. 0x6af22ead3c96cbce962d6ee180fff64caf474e192814c67a5b8ec41b27547953
  7. 0xa8843be52c06d536dbda975178f2eb50e737427c3bf6d4c9a54e0d7776d5b498
  8. 0xe711548f2bab14bca934c1131118a47d36301dc510b314b032d9572fbd6bf193
  9. 0x0944877946b11eb533632585366349953e3c402dcbb7f499566e9a933dd6ff14
  10. 0xfca9ff78b92c71fdaab1acd2d14980882031b639cac9549f1cb05364a670b1da
  11. 0xa5ad1076807e948ee46c6ef88026aa55418c25a28faa967ff0fc965aa97c5a48
  12. 0x94dd4ed7cf198df741ccda83eacc422aadb31119fc6e84c4a6d2f023453b7960
  13. 0xd830c52e1e8095e014510110592485afcb02b9c9a36f85653e4891a8de941246
  14. 0x0733993143f0230e79482cef2c38e95d98f9eafbe64a43cdc74a4545938a4167
  15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
  16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
  17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON