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Evidence row 236532

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://base-intel-api.jakemaxsigal.workers.dev/gas
Recorded
Previous row
#71443
Body SHA-256
2e0ae8f11ccba1d8b8ed41806d6c5d4262a8711e96afba8952ce469125dc653b
Leaf
0x14e7541a0cafc23bf019e549deb7ddfb0d91362123ce24ab3c5ebc323bb4d5e9

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://base-intel-api.jakemaxsigal.workers.dev/gas"
    ]
  ],
  "name": "base-intel-api.jakemaxsigal.workers.dev/gas",
  "owner_address": "0x9dc9a48611b53145bfaa3535dbc1d01df89159bd",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "outputSchema": {
          "input": {
            "discoverable": true,
            "method": "GET",
            "parameters": [],
            "type": "http"
          },
          "output": {
            "properties": {
              "baseFeeGwei": {
                "type": "number"
              },
              "chain": {
                "type": "string"
              },
              "recommendation": {
                "type": "string"
              },
              "tiers": {
                "properties": {
                  "fast": {
                    "properties": {
                      "maxFeeGwei": {
                        "type": "number"
                      },
                      "swapCostUsd": {
                        "type": "number"
                      },
                      "waitBlocks": {
                        "type": "number"
                      }
                    },
                    "type": "object"
                  },
                  "slow": {
                    "properties": {
                      "maxFeeGwei": {
                        "type": "number"
                      },
                      "swapCostUsd": {
                        "type": "number"
                      },
                      "waitBlocks": {
                        "type": "number"
                      }
                    },
                    "type": "object"
                  },
                  "standard": {
                    "properties": {
                      "maxFeeGwei": {
                        "type": "number"
                      },
                      "swapCostUsd": {
                        "type": "number"
                      },
                      "waitBlocks": {
                        "type": "number"
                      }
                    },
                    "type": "object"
                  }
                },
                "type": "object"
              },
              "timestamp": {
                "type": "string"
              }
            },
            "type": "object"
          }
        },
        "payTo": "0x9dc9a48611b53145bfaa3535dbc1d01df89159bd",
        "scheme": "exact"
      }
    ],
    "description": "Base gas oracle / Base gas price API / Base L2 gas fee tracker / real-time gas estimator / swap cost estimator. Returns the current Base fee, fast/standard/slow priority tiers, the USD cost of a typical swap, and a congestion recommendation. For AI agents, trading bots, and wallets timing transactions on Base to minimize gas.",
    "extensions": {
      "bazaar": {
        "discoverable": true,
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "baseFeeGwei": 0.004,
              "chain": "base",
              "recommendation": "very_cheap",
              "tiers": {
                "fast": {
                  "maxFeeGwei": 0.008,
                  "swapCostUsd": 0.0004,
                  "waitBlocks": 1
                },
                "slow": {
                  "maxFeeGwei": 0.005,
                  "swapCostUsd": 0.0002,
                  "waitBlocks": 10
                },
                "standard": {
                  "maxFeeGwei": 0.006,
                  "swapCostUsd": 0.0003,
                  "waitBlocks": 2
                }
              },
              "timestamp": "2026-05-30T00:00:00.000Z"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {},
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "baseFeeGwei": {
                      "type": "number"
                    },
                    "chain": {
                      "type": "string"
                    },
                    "recommendation": {
                      "type": "string"
                    },
                    "tiers": {
                      "properties": {
                        "fast": {
                          "properties": {
                            "maxFeeGwei": {
                              "type": "number"
                            },
                            "swapCostUsd": {
                              "type": "number"
                            },
                            "waitBlocks": {
                              "type": "number"
                            }
                          },
                          "type": "object"
                        },
                        "slow": {
                          "properties": {
                            "maxFeeGwei": {
                              "type": "number"
                            },
                            "swapCostUsd": {
                              "type": "number"
                            },
                            "waitBlocks": {
                              "type": "number"
                            }
                          },
                          "type": "object"
                        },
                        "standard": {
                          "properties": {
                            "maxFeeGwei": {
                              "type": "number"
                            },
                            "swapCostUsd": {
                              "type": "number"
                            },
                            "waitBlocks": {
                              "type": "number"
                            }
                          },
                          "type": "object"
                        }
                      },
                      "type": "object"
                    },
                    "timestamp": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-26T15:18:47.801Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-24T01:38:39.265Z"
    },
    "resource": "https://base-intel-api.jakemaxsigal.workers.dev/gas",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Base gas oracle / Base gas price API / Base L2 gas fee tracker / real-time gas estimator / swap cost estimator. Returns the current Base fee, fast/standard/slow priority tiers, the USD cost of a typical swap, and a congestion recommendation. For AI agents, trading bots, and wallets timing transactions on Base to minimize gas."
}

What the leaf hashes

{"body":"2e0ae8f11ccba1d8b8ed41806d6c5d4262a8711e96afba8952ce469125dc653b","id":236532,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793028826159763,"prev":71443,"subject":"x402_bazaar:https://base-intel-api.jakemaxsigal.workers.dev/gas","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. 0x14e7b2debf6215f6a87b1ea6cdc7b535166b2c8683e59e0af3f04c262b1d91d2
  2. 0x807b5c00e892a8ca100196c3d38a1bb7800877ab4dcf6b25644ec468f64f97d7
  3. 0x87d81c136ce179c33feadd74f803f3d837197d156a0d23abf148366be3a7ec1c
  4. 0xc083b0d20fc03ea151fcc6b243732b80876960dd9d23c0f70a0e046b823311f6
  5. 0x048a60b1af3e0554cef2416fb2c9081c57d8a51964b2efc9ef3c42ef41c6eb45
  6. 0x86bed902bcee077ea9d87af20727dd6f2453aa1528cd0aa5a5e4fef2b28ef1a1
  7. 0xbd2613fc99e41c6b77837db84f64a02e1ce70520b62d1d7c48c68633de2a8937
  8. 0xa00eef3cb2069a9874199bff4cb3a870841dfd22a67680306c731fdfc0edefc9
  9. 0xef11a71beed9d9f71f58bb83457901650436413ebd22769e10ada1db356dabd0
  10. 0x008cbf3247d4503d443f28c4c20ecbbf230ffd5cf8ab0fd65a43b17b5b4825ba
  11. 0xb5d5212c69fb335bad2409aa4a0da0469cc6cc62939ca82d5235005f3b154a2b
  12. 0x2412cb8bc4d10d94e1eb907d5058dd12133e55416609e1b314e811af76620542
  13. 0xff1c28bdf595a3d1333e9915edc68e9c5fded7bd5923fa85870979af34cbc3b3
  14. 0xb49e8c2564256e5322e375cb619d9ac70fd17c1d1eba9c991bba4cb6428f45cc
  15. 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
  16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
  17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON