Evidence row 1508242

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://gas.genexxis.com/now"
    ]
  ],
  "name": "gas.genexxis.com/now",
  "owner_address": "0x9287e3102d411029025c7617d75245bfc7920f17",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x9287e3102D411029025C7617d75245BFc7920f17",
        "scheme": "exact"
      }
    ],
    "description": "Current gas on one EVM chain: base fee and slow/standard/fast priority fee in gwei, and USD cost of a native transfer, an ERC-20 transfer and a Uniswap swap including the L1 data fee on rollups.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "chain": "base"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "baseFeeGwei": 0.005,
              "chain": "base",
              "name": "Base",
              "nativeToken": "ETH",
              "nativeUsd": 2342.74,
              "priorityFeeGwei": {
                "fast": 0.01,
                "slow": 0.00036,
                "standard": 0.00115
              },
              "transactions": {
                "erc20Transfer": {
                  "costUsd": {
                    "fast": 0.00229,
                    "slow": 0.000817,
                    "standard": 0.000938
                  },
                  "gas": 65000,
                  "l1DataFeeUsd": 0.00000112
                },
                "ethTransfer": {
                  "costUsd": {
                    "fast": 0.000739,
                    "slow": 0.000265,
                    "standard": 0.000303
                  },
                  "gas": 21000,
                  "l1DataFeeUsd": 8.75e-7
                },
                "uniswapSwap": {
                  "costUsd": {
                    "fast": 0.00633,
                    "slow": 0.00226,
                    "standard": 0.0026
                  },
                  "gas": 180000,
                  "l1DataFeeUsd": 0.00000355
                }
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "chain": {
                      "description": "ethereum, base, arbitrum, optimism, polygon or bsc",
                      "type": "string"
                    }
                  },
                  "required": [
                    "chain"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "builder-code": {
        "info": {
          "s": [
            "cdp_sdk_server"
          ]
        },
        "schema": {
          "$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"
        }
      },
      "eip2612GasSponsoring": {},
      "erc20ApprovalGasSponsoring": {}
    },
    "lastUpdated": "2026-10-31T00:30:36.351Z",
    "quality": {
      "l30DaysTotalCalls": 9,
      "l30DaysUniquePayers": 5,
      "lastCalledAt": "2026-10-31T00:30:35.815Z"
    },
    "resource": "https://gas.genexxis.com/now",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Current gas on one EVM chain: base fee and slow/standard/fast priority fee in gwei, and USD cost of a native transfer, an ERC-20 transfer and a Uniswap swap including the L1 data fee on rollups."
}

What the leaf hashes

{"body":"dbc4924ad9029b14f0b185ec014cc57afec80d8741483cd15ed676b34dedc9c3","id":1508242,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793472708401429,"prev":1261451,"subject":"x402_bazaar:https://gas.genexxis.com/now","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).

1. 0xae1127a3a01c1026d38badcbeac06b17aedcd231dc2e9a828be8770eed445896
2. 0x12d37103cfbe17e63d97d4713fffe8eedfbfec42d609265862c45bc5f9605906
3. 0x53023c80a0959675b3862dea09f1fb0e6fd4c97ef7450eba246ad33eedc46996
4. 0x15fddfee11abb1abfa210d001aca3d056923a833562dd134c94a96afe229177c
5. 0x3c0093dde524360bc52d86436a2ae1e0309dc48933f30d4001cd2433c9480a1a
6. 0xd03aef697a6537d3d7cb3028afbee8272681a73ce3366efab403e6c2dbd862cd
7. 0xf40f98465eff4eb223939b4d8de3a570f5b5f1afb2f8a1176639b2b40db0628c
8. 0xa06a98fdf0bf681e80f117cf525295be601de18925f29f8bd8e49f27a102d256
9. 0xa7f524564056f0654f06669fa149cdbec983d2bedc208a759755c5d3b7f1e75c
10. 0xa9501ca87fcf858180f8dc1df7cdfae5b13f3f024e44218dfc1b9d3672115bb4
11. 0x514499a2e09619b86e7ed1db689750d97d3f8424cdd40c78bcb8597fc36a394c
12. 0x34ebe35e665c8ad4cfee030a83512f81e33c32db411169ebb250ec39780fa4c8
13. 0x0b806489de9a06dcb3c577117e5b9b04eba4220a7b621a2fa8d84dafcbb2eb4e
14. 0x17b4d08af91ab833713ac6154ec68f498dbe032401780285c2ccdadad6ac27f1
15. 0x57afe240b626bf60f6af8c76404811e95ea5519f217fac382bd159177a8ec870
16. 0x2e1cd25ce4079da9bfa6219d7ffec992149add4cd7d5c5b2cfee9908c1c8a5dd
17. 0x50003b3c3045b653f8be4232e95e80582cf5c54c14c509ba0a9a197b9e5005cb
18. 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0