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Evidence row 64217

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://agentx402pay.com/api/gas-price
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
8007ffb0df10ef43d53e84b965364ab85a2f2d4bf35ae308de0127620d2e5030
Leaf
0x7ed30fabefe8b8cc75ce111734055d1316679a8c3e471e1c79e3734e2ca79e3b

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agentx402pay.com/api/gas-price"
    ]
  ],
  "name": "x402 Gas Price Oracle",
  "owner_address": "0xb2bdc37b8481f4cdcf38402cfcd446ae5133beef",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xB2BDc37b8481F4CdCF38402CFCd446Ae5133BeeF",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xB2BDc37b8481F4CdCF38402CFCd446Ae5133BeeF",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xB2BDc37b8481F4CdCF38402CFCd446Ae5133BeeF",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "FGbmnF4YVfNfh3VCJGGh4VkXxS5X2nzh4sw1UwahSESX",
        "scheme": "exact"
      }
    ],
    "description": "Current gas price and EIP-1559 fee estimate for a chain (base, ethereum, polygon, arbitrum, optimism)",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "chain": "base"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "chain": "Base",
              "gasPriceGwei": 0.012,
              "maxFeePerGasGwei": 0.015,
              "maxPriorityFeePerGasGwei": 0.001,
              "nativeSymbol": "ETH"
            },
            "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": "Chain to query: base, ethereum, polygon, arbitrum, optimism (default base)",
                      "type": "string"
                    }
                  },
                  "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"
        }
      },
      "offer-receipt": {
        "info": {
          "offers": [
            {
              "acceptIndex": 0,
              "format": "eip712",
              "payload": {
                "amount": "10000",
                "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "network": "eip155:8453",
                "payTo": "0xB2BDc37b8481F4CdCF38402CFCd446Ae5133BeeF",
                "resourceUrl": "https://agentx402pay.com/api/gas-price",
                "scheme": "exact",
                "validUntil": 1792441120,
                "version": 1
              },
              "signature": "0x29aa5ec6af9c14f3165b8e8dc9e8f18755f734813eaddcf0ded9fd86fa551e0e25150849e5f849e161508b61bddca3685b2ede81731ffe151c062257c94d195a1c"
            },
            {
              "acceptIndex": 1,
              "format": "eip712",
              "payload": {
                "amount": "10000",
                "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
                "network": "eip155:137",
                "payTo": "0xB2BDc37b8481F4CdCF38402CFCd446Ae5133BeeF",
                "resourceUrl": "https://agentx402pay.com/api/gas-price",
                "scheme": "exact",
                "validUntil": 1792441120,
                "version": 1
              },
              "signature": "0x2a39236f0064e3e07d8fd004f04c609a7bd3723ccc4121119b42aeac1eda7e956e7b8ab627e7cbbb7b2cb5e96fd44af8b264ef9db70890198b2506de240a72b81b"
            },
            {
              "acceptIndex": 2,
              "format": "eip712",
              "payload": {
                "amount": "10000",
                "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
                "network": "eip155:42161",
                "payTo": "0xB2BDc37b8481F4CdCF38402CFCd446Ae5133BeeF",
                "resourceUrl": "https://agentx402pay.com/api/gas-price",
                "scheme": "exact",
                "validUntil": 1792441120,
                "version": 1
              },
              "signature": "0x1b3458a77d429bfe12da70bfc32c35d408fe60eb54c73990a3ffaef4769112aa25fee098502f5956b4664786fa5c317143c4f87c5fd519879141d1130802824e1b"
            },
            {
              "acceptIndex": 3,
              "format": "eip712",
              "payload": {
                "amount": "10000",
                "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
                "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
                "payTo": "FGbmnF4YVfNfh3VCJGGh4VkXxS5X2nzh4sw1UwahSESX",
                "resourceUrl": "https://agentx402pay.com/api/gas-price",
                "scheme": "exact",
                "validUntil": 1792441120,
                "version": 1
              },
              "signature": "0xd94364c7ca809cf8cd4b79ab5fac3a9afeb68d5903c2e3a59ab032b1b4d75eea5d4c9436e810acf9053ef49f237d5f4e13889306f95b05b81883176a6630e3061c"
            }
          ]
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "offers": {
              "items": {
                "properties": {
                  "acceptIndex": {
                    "type": "integer"
                  },
                  "format": {
                    "type": "string"
                  },
                  "payload": {
                    "properties": {
                      "amount": {
                        "type": "string"
                      },
                      "asset": {
                        "type": "string"
                      },
                      "network": {
                        "type": "string"
                      },
                      "payTo": {
                        "type": "string"
                      },
                      "resourceUrl": {
                        "type": "string"
                      },
                      "scheme": {
                        "type": "string"
                      },
                      "validUntil": {
                        "type": "integer"
                      },
                      "version": {
                        "type": "integer"
                      }
                    },
                    "required": [
                      "version",
                      "resourceUrl",
                      "scheme",
                      "network",
                      "asset",
                      "payTo",
                      "amount"
                    ],
                    "type": "object"
                  },
                  "signature": {
                    "type": "string"
                  }
                },
                "required": [
                  "format",
                  "signature"
                ],
                "type": "object"
              },
              "type": "array"
            }
          },
          "required": [
            "offers"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792349576/bazaar-icons/2476206f1e041b3f.png",
    "lastUpdated": "2026-10-19T20:13:40.591Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-19T20:13:40.424Z"
    },
    "resource": "https://agentx402pay.com/api/gas-price",
    "serviceName": "x402 Gas Price Oracle",
    "tags": [
      "gas",
      "ethereum",
      "on-chain",
      "blockchain",
      "fees"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Current gas price and EIP-1559 fee estimate for a chain (base, ethereum, polygon, arbitrum, optimism)"
}

What the leaf hashes

{"body":"8007ffb0df10ef43d53e84b965364ab85a2f2d4bf35ae308de0127620d2e5030","id":64217,"kind":"listing","method":"baseline/1","observed_us":1793025456328640,"prev":null,"subject":"x402_bazaar:https://agentx402pay.com/api/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 (296695 rows).

  1. 0x7ed308f8bea0e368b4ead6094862dbca627c8afd49e9c4e9482b6b076a0adeb4
  2. 0x387886bffe03f1aa8c2de2d0696d1c1f11f8d809a95a4f6df7daa27fe81c0d28
  3. 0x99f947771b233f433db52fad5870082fcc50e6d2591c6487b38d0f1da684410b
  4. 0x9ffa09a143d99ce907d4c7d43b09b3a614c3c2245140a95f7f232ab2306eb4b6
  5. 0x7a31b1cb821964fe4db356cec37cfe24eeccb7264771efcfad8d02214d674d38
  6. 0x60d81aec103cb8f0a6fb6ce6c03089044ecf6ac7032d4917d763beb0b1018459
  7. 0x6e9669e06b217d907502ead12e39a764e5ab69f2d8777a2f372dfd95d4d94c33
  8. 0x1c84af50b4047f7a3bab5eb40b6588f323695f1968f884274ef10abcfb9e4953
  9. 0x13c8d72b8f6436bfb2f9d0e394e6671897000fdb5a842a25ee8036187bbe8dfc
  10. 0xfd7f00031b4432edd469882d277184d679cf4192e96f29d0d9b09eaa1702106e
  11. 0x86993f34ffd04a19214c4b442a83218e78811798750015024990bf574868d9e8
  12. 0xab729e4203b650f2a3c15efd6fd44eb2482232373bc1de662fd9d496869eb2d3
  13. 0x0bffb634300aa5609bddaa79e8d31d7cde36c0a5a4465472f809b9f5287e40d2
  14. 0x7721d38652b6444b18e1193824e50490ade04851ce6221771f6e374c4527d80f
  15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
  16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
  17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
  18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON