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Evidence row 279099

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://base-intel-api.jakemaxsigal.workers.dev/gas
Recorded
Previous row
#236532
Body SHA-256
ff0297f34aacef0467b43ba41255daf94ea5888c7f3f5c71461e36d1aa778194
Leaf
0x1d7aa844e44090f259e68068ad662836311b1c3d591ad79123fbb9f00b6dcc68

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": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-26T15:18:47.497Z"
    },
    "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":"ff0297f34aacef0467b43ba41255daf94ea5888c7f3f5c71461e36d1aa778194","id":279099,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793042173634461,"prev":236532,"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. 0x1d7aad7f2b5247a804a1dddb4974c932ad4327e99674a351c9afcd901ccc3b75
  2. 0x56b3cec7a11657f3ec1a6ce1d3863d9774698c0988f762d5ceb2075566e9a3b5
  3. 0x034857890e59d27171226f1358730f8c2bb085f52a350d7c334815fe637de53c
  4. 0x2a09e853f4304f23123b2ed13aaae9f4c9fbf661b7cd9c97490007177246d6b6
  5. 0x8e31100f74480eab159db1fe72b266b7e5bae8661d62cef4167de245f3e304c1
  6. 0x42214b3be9118bb90975d5f0cebe8165c2f0589dafaf0545f5686da1164d928a
  7. 0x56d8fda7e8b8432cd3a3a4e75ffb01fa94e79518e9e8965c2440e14089f9a4cb
  8. 0x1418aafa61483c8a77e6e9c28289d31987d78ff414b8ac93ecc4ccb8610d0c27
  9. 0x401650e78060172b587426fbc195d26513e5d12a9f5e8cfdc013fb5a70140421
  10. 0x667c9edc7131bd388a1c1a039f7fddf0a4fbc13b4f1e7297601127a46cdc7292
  11. 0xf0f77ed1d484625ddaf2f6e58baa64c9dec47a22b1a6beb91219a17bddac7dfa
  12. 0x8e3531af6dd328ff9a174dd19751228f67fa0773c68a89edf859dffbd7b098c3
  13. 0x42b0d9d5b53af5b0fe99cee10ce29fe484db78b92ce49f97190cc6d098651d47
  14. 0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16
  15. 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
  16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
  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