Evidence row 125592

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.agentindex.world/gas-price"
    ]
  ],
  "name": "gas-price-checker",
  "owner_address": "0xb3f32bdfe8d07825bc0d7387295ab1d7559ba69d",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d",
        "scheme": "exact"
      }
    ],
    "description": "Read the live gas price, EIP-1559 base fee and estimated native-transfer cost on Base, Ethereum, Polygon, Arbitrum or Optimism. No RPC key or account. Try GET /gas-price/sample.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "network": "base"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "base_fee": {
                "gwei": 0.0009,
                "wei": "900000"
              },
              "block_number": 51500000,
              "gas_price": {
                "gwei": 0.001,
                "wei": "1000000"
              },
              "native_transfer_estimate": {
                "fee_native": 2.1e-8,
                "fee_wei": "21000000000",
                "gas_limit": 21000,
                "symbol": "ETH"
              },
              "network": {
                "caip2": "eip155:8453",
                "key": "base",
                "name": "Base"
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "network": {
                      "description": "EVM network to read; defaults to Base.",
                      "enum": [
                        "base",
                        "ethereum",
                        "polygon",
                        "arbitrum",
                        "optimism"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "base_fee": {
                      "type": [
                        "object",
                        "null"
                      ]
                    },
                    "block_number": {
                      "type": "integer"
                    },
                    "gas_price": {
                      "type": "object"
                    },
                    "native_transfer_estimate": {
                      "type": "object"
                    },
                    "network": {
                      "type": "object"
                    },
                    "x402_receipt": {
                      "type": "object"
                    }
                  },
                  "required": [
                    "network",
                    "block_number",
                    "gas_price",
                    "native_transfer_estimate"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1790530885/bazaar-icons/fde5dd6af2b2b42f.png",
    "lastUpdated": "2026-10-25T23:37:35.961Z",
    "quality": {
      "l30DaysTotalCalls": 13,
      "l30DaysUniquePayers": 8,
      "lastCalledAt": "2026-10-25T23:37:35.502Z"
    },
    "resource": "https://x402.agentindex.world/gas-price",
    "serviceName": "gas-price-checker",
    "tags": [
      "gas",
      "fee",
      "EVM"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Read the live gas price, EIP-1559 base fee and estimated native-transfer cost on Base, Ethereum, Polygon, Arbitrum or Optimism. No RPC key or account. Try GET /gas-price/sample."
}

What the leaf hashes

{"body":"c8ffa16e25c3691a0d317db4d7bf6913b08f941fb14ba80237b563b35fc29be3","id":125592,"kind":"listing","method":"baseline/1","observed_us":1793025626505894,"prev":null,"subject":"x402_bazaar:https://x402.agentindex.world/gas-price","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x9004512aefa1ab8c631cc7365f9cd2a29c3d9436fcd3dbc387fdf5fc2255240f
2. 0x451536b3b636869443811f4cc78420bfd079d678d61b7cbb993ad7c584133656
3. 0xe8b0920f7e08fb1e812756d60a54395495d1ed487e9016c0092c0eed2368f8dc
4. 0xffd00878ff657d554da53adc7305006032cd67d45722b5323d6b97f1e9b38004
5. 0x3b4f6fbafd94ce0728e7b1e9437b2e3110be1e7ee2aec82a111a0cd24785431b
6. 0x185a29b363b696088343a3a8ae0dab9c4bfc547d950d6e044408b1522bf1d716
7. 0x4d7505e144e525c6b719c1680487c0c1da817c46d93fce58e9652c2640c8c299
8. 0x4468eeb2be4d4b416304ed5dc4fd4e07882dde51252e26bc0a15f6e283348b48
9. 0xafd07f558b3aa04f1b19ecfcfb09e50a877956021bea2bc81aec22ce641a6f7c
10. 0x937ec000b046e1bf91c802a5eed5cbe7852354ed43b3084c7d16a93933523a5e
11. 0xc41c5ee73cf254bf3fe8e9a8475b0931c3223f7331f30010bc3a5e2a753329d6
12. 0x4634efb8094d1dd2874013b832ad8653e49400f57bf98efdcc5f925ed08d0f5b
13. 0xc0cb184c9bdf71abcf18fda97bd59289153d120dbf8fee9f517b63bf303deb95
14. 0xf0edabbb9ba0d643e5505d19d07637eb6f6aed0a1c7356af43ae7d84ae9ef0c5
15. 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae