Evidence row 1261451

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": "2026-10-30T18:33:25.423Z",
    "quality": {
      "l30DaysTotalCalls": 6,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-30T12:50:33.25Z"
    },
    "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":"5fd1c487fa2d9a0530be746b013786e286b426149d49be615616926a59cc5120","id":1261451,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385511316056,"prev":54287,"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 2026-10-30 (243099 rows).

1. 0x2133c23043efcef2e976a79c7ef1ccffe57cfece6f89ca4cb4a22560da3eafdd
2. 0x501b71a6f1bd47c379d35871ce803eb0787586de02b26950b2508fb1ef172d8c
3. 0x95c201140cf14495d7465c3e24f87f7b74b222b9a279002b4cbc2374d72cedf2
4. 0xc8a999677656c354d27caa306f081092cee972c7d3ded1e2960f39e6d0630151
5. 0x38bce7acaf914813df0b7d0de4b7c54e6a9e4cc75ad9b70bfaf18dfba616331d
6. 0xfde0430e627ea0a605129bb73962c24de2621730a13a4c84f22ff981d17aedc6
7. 0x643bbf21bfc9a20310d3e8d6e17e693c4748e932c4186f117e18287429463de4
8. 0x08b13daa2f0dc46316f76069fcd60d14ee60794704044a8ccf4139b8f5399b1f
9. 0x870d3b6fb486d4b8b6a720a98bcace8ec2664ede6a407e37ec9de05608604fd3
10. 0x1f1e59cd7de7bf787fef324a49b0d2070f77ca5618f8984c465ef98f580e1cfe
11. 0xf048b57a186ac511a50c91736de4fd488948ab7dff985288923e61adc836cd3e
12. 0xceeca1bee88ff8601da6d33cd5ab6d65b985f0ffec897a2c0cfd08154ae67f98
13. 0xbd1446eaebfa305f15b340dea3e27a3e7b3a8ce24b81ebb8cc7d8916641b7cca
14. 0xa25de97dbaf2a3b2e2808c2011eada63945b08a93d4bb9a6253fb7a136aa5dac
15. 0x0313631fba69cc31784d20beec069335df13219f8a8a8a8831740bca4d4aa0a0
16. 0xe2a9872e1b6a01c55a7a8cc5c05c61f3933255db5c26b9c79be4011d28685b52
17. 0xb0c9ef42e725578748f3119c9dbebf2fc437266bda013df29f98ed3ebe621403
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861