Evidence row 2201439

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://nohands-coinbase-bazaar.bytoken2023.workers.dev/v1/x402/base/gas-fee-quote"
    ]
  ],
  "name": "NO HANDS AI",
  "owner_address": "0x94f751f04b98507d31b500b7ed50be68a1514873",
  "raw": {
    "accepts": [
      {
        "amount": "3002",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x94F751f04b98507D31b500b7Ed50bE68A1514873",
        "scheme": "exact"
      }
    ],
    "description": "Return live Base gas fees and an estimated transaction cost for a caller-supplied gas limit.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "gas_limit": "21000"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "block_number": 100,
              "block_utilization_percent": 0.2625,
              "estimated_cost": {
                "eth": "0.000021",
                "wei": "21000000000000"
              },
              "fees": {
                "base_fee_gwei": "1",
                "base_fee_wei": "1000000000",
                "gas_price_gwei": "1",
                "gas_price_wei": "1000000000",
                "priority_fee_gwei": "2",
                "priority_fee_wei": "2000000000"
              },
              "fetched_at": "2026-07-24T00:00:00.000Z",
              "gas_limit": "21000",
              "limitations": [
                "The estimate uses the supplied gas limit and current gas price, not transaction simulation.",
                "Fees can change before a transaction is submitted or included."
              ],
              "network": "eip155:8453",
              "product": "base-gas-fee-quote",
              "provenance": {
                "block_tag": "latest",
                "rpc_providers": [
                  "https://base.blockscout.com/api/eth-rpc",
                  "https://mainnet.base.org",
                  "https://base-rpc.publicnode.com"
                ]
              },
              "schema_version": "1.0"
            },
            "type": "json"
          }
        },
        "routeTemplate": "/v1/x402/base/gas-fee-quote",
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "gas_limit": {
                      "description": "Expected transaction gas limit.",
                      "example": "21000",
                      "pattern": "^[0-9]+$",
                      "type": "string"
                    }
                  },
                  "required": [
                    "gas_limit"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "additionalProperties": true,
                  "properties": {
                    "block_number": {
                      "type": "integer"
                    },
                    "block_utilization_percent": {
                      "type": "number"
                    },
                    "estimated_cost": {
                      "additionalProperties": true,
                      "properties": {
                        "eth": {
                          "type": "string"
                        },
                        "wei": {
                          "type": "string"
                        }
                      },
                      "type": "object"
                    },
                    "fees": {
                      "additionalProperties": true,
                      "properties": {
                        "base_fee_gwei": {
                          "type": "string"
                        },
                        "base_fee_wei": {
                          "type": "string"
                        },
                        "gas_price_gwei": {
                          "type": "string"
                        },
                        "gas_price_wei": {
                          "type": "string"
                        },
                        "priority_fee_gwei": {
                          "type": "string"
                        },
                        "priority_fee_wei": {
                          "type": "string"
                        }
                      },
                      "type": "object"
                    },
                    "fetched_at": {
                      "type": "string"
                    },
                    "gas_limit": {
                      "type": "string"
                    },
                    "limitations": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "network": {
                      "type": "string"
                    },
                    "product": {
                      "type": "string"
                    },
                    "provenance": {
                      "additionalProperties": true,
                      "properties": {
                        "block_tag": {
                          "type": "string"
                        },
                        "rpc_providers": {
                          "items": {
                            "type": "string"
                          },
                          "type": "array"
                        }
                      },
                      "type": "object"
                    },
                    "schema_version": {
                      "type": "string"
                    }
                  },
                  "type": "object",
                  "x-schema-authority": "REPRESENTATIVE_RUNTIME_FIXTURE",
                  "x-schema-family": "OPERATION_RUNTIME_RESULT"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-02T02:20:48.191Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-02T02:20:47.875Z"
    },
    "resource": "https://nohands-coinbase-bazaar.bytoken2023.workers.dev/v1/x402/base/gas-fee-quote",
    "serviceName": "NO HANDS AI",
    "tags": [
      "x402",
      "no-hands-ai",
      "blockchain-data"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Return live Base gas fees and an estimated transaction cost for a caller-supplied gas limit."
}

What the leaf hashes

{"body":"ceec068110803f6a2a618cf4608eb0e35152702420b46a95aaa8ae5d214305e9","id":2201439,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646805525464,"prev":null,"subject":"x402_bazaar:https://nohands-coinbase-bazaar.bytoken2023.workers.dev/v1/x402/base/gas-fee-quote","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x16450080fbe9678364ad33511651657fad26fa01977a189c8d084fb862d6cd45
2. 0x2f1a24c927aacad35188f29cc8fbf146ae493f5955b218a4e5fdcefcbff65038
3. 0xddaed020510db8c1e273f011c15bd67a05f3a56f9f2580552acdc3f44218d27a
4. 0xfb66baf097ed7e276794694b02254ba02850deb07c8182437088e1fc67268039
5. 0xda9c599bad2d4a9d5164d6331ea06ac68a5f3cb7e1745fb46e435f8926f8c1ab
6. 0x41c988b4e4d0166d1f23ca68db52f107d10a71a84f8e53ccbd4822b59e589496
7. 0x3523e1e7d7610a56136996bd57080b8d8ed4ae4a05eac980b1b23040ec19a7d0
8. 0x5a9d2321c89c7166deeb83313a49487816bda7c30a3c5ae566979f0b1ea903b4
9. 0x5b258dc05d289478a41e32dada8bcb1e26715abae7538b3b8d8be2d58de864f1
10. 0x67f91818000f2d80ebf461e45fe3e11cbe45348435fcc00266e356806c0a101c
11. 0x8b7a53e04de07b3bf3b30c92774d89d71cff1f21d809de109f1b4e654cbe5831
12. 0x694772bd88c608c978c07a5b88c13f219f0e5b849a0c034e7cf4e9550d4e78c9
13. 0xac2edb456c581283e2c60a03e146bbba52ffbe8a277ea7e858384f30bbc24d54
14. 0xd35a6b56332d7bee4b13ce3efea77dd0a6863016f58691fb78e2e2faf7ab8e87
15. 0xb6470417fdb2a0e3de9c1abb1722cbc88bc0dfb5afda0a77e1eac26ab1683ece
16. 0xac40f077ca4be8c3432a67771725cc315e8101fc2649999cfad2c900a7640e27
17. 0x53a741b69e9e51c4a288a74712aa6ac3fb28c8923cd3e6461d161c4f2d48b31a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af