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Evidence row 71443

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://base-intel-api.jakemaxsigal.workers.dev/gas
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
4b14bad20cabd116ec61b73fe5f4e965eb759f4911940e94468d07764dc43611
Leaf
0x1a758568fc3910e8d2b07d1069a5200a36a25219ac4a2c6d2a2360040857ce24

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": "2026-10-24T01:38:39.445Z",
    "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":"4b14bad20cabd116ec61b73fe5f4e965eb759f4911940e94468d07764dc43611","id":71443,"kind":"listing","method":"baseline/1","observed_us":1793025482160773,"prev":null,"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. 0x1a75887e2b3ad12c8eeb8b0703b1c0b997b3fd55f7eecb4b214260456297a56c
  2. 0x950fc2c030dd7f02b6fb9166a88f2d08c3051998018d3b4194b7e17a8a3690a5
  3. 0xfa5bb9e663e21bc3d405581f9caa7210664c111102a5cbbcd462eb78cab37258
  4. 0x59ea14e4371d33e1bbd22a317a6169ac0923df4023118c857f288d590cce62a3
  5. 0x0123c7a508f15ba85f4d1c9e1c9d1110fca06c94bb8ec3590b76ec6ccfd721c4
  6. 0x9f94aeb1b1af4a1d8b0551be9e235ec509f8c1531a23ee8793555de33ddb0eb3
  7. 0xe2899a612b86ee987b53e426c1c30caefadf5b0a8d1187ef767a2b1e030478da
  8. 0x77ca1c9a7b86ff04427434ae2173c042d2123500c67c0ea04de50bb976c9454a
  9. 0x24d5aad156961d9c3f6fc7b13a88e5aab7513d450224f23a56e55a57f094f7fa
  10. 0xdd23b279d0847860786130eecc85f2b83d5c655bfd9ab282efff968c5d7bdc6d
  11. 0x6a51e1d524ffd968d6f505e10f76aacd4ae61fc223a88a38ef8820592653c75a
  12. 0x6a8a72430804a14ec575375f3d0ca4364f58310afb2c2e8c92b72f8b75809db9
  13. 0xe00c7829e46541e49a308807d357db902e06eff941a833217a8f0dbccd3964f1
  14. 0x770e4376196188c7fc9ec40f8e218dc0d1cb92bba5fe0425a0edce27ca9a997f
  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