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Evidence row 63924

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://agentshelf.syntexa.ch/v1/base-gas
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
9097a72e9ed0f78d7828841096e72da7bc2f7a13a1063a7876b2c5c3430fde97
Leaf
0xe4219c87f43dadb9122397d28be2456561e098efb4c02a9c5aa695ed57f19bb3

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agentshelf.syntexa.ch/v1/base-gas"
    ]
  ],
  "name": "agentshelf.syntexa.ch/v1/base-gas",
  "owner_address": "0x1d61faa032d3f40d9c470d2bf3a3f53de0e55a38",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x1D61FAA032d3f40D9C470D2bf3A3f53De0E55a38",
        "scheme": "exact"
      }
    ],
    "description": "Call when an agent needs the latest Base base fee, max priority fee, and gas price. Send block latest, or omit it. Read-only eth_getBlockByNumber, eth_maxPriorityFeePerGas, and eth_gasPrice. No address. Send JSON {\"block\":\"latest\"}. Exact $0.001 USDC on Base. Try unpaid POST /v1/sandbox/base-gas first.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "block": "latest"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "base_fee_gwei": "1",
              "base_fee_wei": "1000000000",
              "billed": true,
              "block_number": 100,
              "gas_price_wei": "1001000000",
              "network": "eip155:8453",
              "ok": true,
              "priority_fee_wei": "1000000",
              "receipt_id": "rcpt_01EXAMPLE000000000000000",
              "warnings": []
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "examples": [
                    {
                      "block": "latest"
                    }
                  ],
                  "properties": {
                    "block": {
                      "const": "latest",
                      "description": "Block tag. Only latest is accepted. Example: latest. Omit it for the same current base fee, priority fee, and gas price. No address and no URL.",
                      "examples": [
                        "latest"
                      ],
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "additionalProperties": false,
                  "examples": [
                    {
                      "base_fee_gwei": "1",
                      "base_fee_wei": "1000000000",
                      "billed": true,
                      "block_number": 100,
                      "gas_price_wei": "1001000000",
                      "network": "eip155:8453",
                      "ok": true,
                      "priority_fee_wei": "1000000",
                      "receipt_id": "rcpt_01EXAMPLE000000000000000",
                      "warnings": []
                    }
                  ],
                  "properties": {
                    "base_fee_gwei": {
                      "examples": [
                        "1"
                      ],
                      "type": "string"
                    },
                    "base_fee_wei": {
                      "examples": [
                        "1000000000"
                      ],
                      "type": "string"
                    },
                    "billed": {
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "block_number": {
                      "examples": [
                        100
                      ],
                      "minimum": 0,
                      "type": "integer"
                    },
                    "gas_price_wei": {
                      "examples": [
                        "1001000000"
                      ],
                      "type": "string"
                    },
                    "network": {
                      "const": "eip155:8453",
                      "examples": [
                        "eip155:8453"
                      ],
                      "type": "string"
                    },
                    "ok": {
                      "const": true,
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "priority_fee_wei": {
                      "examples": [
                        "1000000"
                      ],
                      "type": "string"
                    },
                    "receipt_id": {
                      "examples": [
                        "rcpt_01EXAMPLE000000000000000"
                      ],
                      "type": "string"
                    },
                    "warnings": {
                      "default": [],
                      "examples": [
                        []
                      ],
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "ok",
                    "receipt_id",
                    "billed",
                    "network",
                    "block_number",
                    "base_fee_wei",
                    "base_fee_gwei",
                    "priority_fee_wei",
                    "gas_price_wei"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-11T10:14:36.434Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-11T10:14:36.234Z"
    },
    "resource": "https://agentshelf.syntexa.ch/v1/base-gas",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Call when an agent needs the latest Base base fee, max priority fee, and gas price. Send block latest, or omit it. Read-only eth_getBlockByNumber, eth_maxPriorityFeePerGas, and eth_gasPrice. No address. Send JSON {\"block\":\"latest\"}. Exact $0.001 USDC on Base. Try unpaid POST /v1/sandbox/base-gas first."
}

What the leaf hashes

{"body":"9097a72e9ed0f78d7828841096e72da7bc2f7a13a1063a7876b2c5c3430fde97","id":63924,"kind":"listing","method":"baseline/1","observed_us":1793025455810026,"prev":null,"subject":"x402_bazaar:https://agentshelf.syntexa.ch/v1/base-gas","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. 0xe420ec7b17ab78c6b03dcfd349dbe71a04c96a1e37addd48d52060b49e0cb034
  2. 0x086f45593ce1e0416ac5ed992275a5b7c6d834bafa78bc4fe49a43f281650c60
  3. 0xe1a3d50e8ba4d401abc933c6593ac973870d26bc8de4891294e87b8206838194
  4. 0xad78598e390d573b0b4844052a048b217c723a33fc5dec52940cec89a9821ed0
  5. 0x0aba02debb4a1f2a5a068ac407c585895fd1b4cc476390d701b7ea4658248e0f
  6. 0xf4963b8b238b2f87229b333d73666fcd4aadd2844503c9b401dc943285ca696c
  7. 0x0ee57ecca9d0c9ffdef7c6a2489f96fcdb5e26d78e3f64807420fc8641defb2e
  8. 0xb36fa3b3bfd0cdc175102c84d5c20dee3f65b7e757b70a3408f08e6a70eadf6b
  9. 0x444a7376940e2830bf72adff90bc8741426d1d746343c45469f2b29d6ccebab3
  10. 0x15726dc36d12291b4937cc1d22f325d4939ad46dd10d4e44468a88a8cc8329ed
  11. 0x162e0da99198c9cdc9c43bf4626e85f4a7092fdb31ea15c7126e1f98b20eaa56
  12. 0x2fc38b57208d692aab1ee89b6e26917df292126314027c27360c5644a63fd0bc
  13. 0xc0924a0807e534382f518663123231c317124338831a2b310de2c17b09677086
  14. 0x9bc5fc98278b9f6dc18c66c6e162aefd5244be03170d41bc5161f58ad11beed7
  15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
  16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
  17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON