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Evidence row 63955

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://agentshelf.syntexa.ch/v1/eth-block
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
fb76d860e67eae86279b8b3642e307208b81c9f55eab337932d98d72cf36b300
Leaf
0xa9335cf2e657e8c5b20bf3ad98f11141e1fdb058ad0ffee6a0fdcc7b092890be

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agentshelf.syntexa.ch/v1/eth-block"
    ]
  ],
  "name": "agentshelf.syntexa.ch/v1/eth-block",
  "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 an Ethereum mainnet block header and transaction hashes by number or tag latest, finalized, or safe. The hash list is capped at 100. Read-only eth_getBlockByNumber on eip155:1. No spend. Send JSON {\"block\":\"latest\"}. Exact $0.001 USDC on Base. Try unpaid POST /v1/sandbox/eth-block first.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "block": "latest"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "base_fee_wei": "1000000000",
              "billed": true,
              "block": "latest",
              "block_hash": "0xabababababababababababababababababababababababababababababababab",
              "block_number": 100,
              "gas_limit": "30000000",
              "gas_used": "21000",
              "miner": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
              "network": "eip155:1",
              "ok": true,
              "parent_hash": "0xabababababababababababababababababababababababababababababababab",
              "receipt_id": "rcpt_01EXAMPLE000000000000000",
              "timestamp": 1700000000,
              "transaction_count": 1,
              "transactions": [
                "0xabababababababababababababababababababababababababababababababab"
              ],
              "truncated": false,
              "warnings": []
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "examples": [
                    {
                      "block": "latest"
                    }
                  ],
                  "properties": {
                    "block": {
                      "description": "Ethereum mainnet block number or tag latest, finalized, or safe. Example: latest. A JSON number such as 100 is accepted. Returns the header and at most 100 transaction hashes.",
                      "examples": [
                        "latest"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "block"
                  ],
                  "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_wei": "1000000000",
                      "billed": true,
                      "block": "latest",
                      "block_hash": "0xabababababababababababababababababababababababababababababababab",
                      "block_number": 100,
                      "gas_limit": "30000000",
                      "gas_used": "21000",
                      "miner": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
                      "network": "eip155:1",
                      "ok": true,
                      "parent_hash": "0xabababababababababababababababababababababababababababababababab",
                      "receipt_id": "rcpt_01EXAMPLE000000000000000",
                      "timestamp": 1700000000,
                      "transaction_count": 1,
                      "transactions": [
                        "0xabababababababababababababababababababababababababababababababab"
                      ],
                      "truncated": false,
                      "warnings": []
                    }
                  ],
                  "properties": {
                    "base_fee_wei": {
                      "examples": [
                        "1000000000"
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "billed": {
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "block": {
                      "examples": [
                        "latest"
                      ],
                      "type": "string"
                    },
                    "block_hash": {
                      "examples": [
                        "0xabababababababababababababababababababababababababababababababab"
                      ],
                      "type": "string"
                    },
                    "block_number": {
                      "examples": [
                        100
                      ],
                      "minimum": 0,
                      "type": "integer"
                    },
                    "gas_limit": {
                      "examples": [
                        "30000000"
                      ],
                      "type": "string"
                    },
                    "gas_used": {
                      "examples": [
                        "21000"
                      ],
                      "type": "string"
                    },
                    "miner": {
                      "examples": [
                        "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "network": {
                      "const": "eip155:1",
                      "examples": [
                        "eip155:1"
                      ],
                      "type": "string"
                    },
                    "ok": {
                      "const": true,
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "parent_hash": {
                      "examples": [
                        "0xabababababababababababababababababababababababababababababababab"
                      ],
                      "type": "string"
                    },
                    "receipt_id": {
                      "examples": [
                        "rcpt_01EXAMPLE000000000000000"
                      ],
                      "type": "string"
                    },
                    "timestamp": {
                      "examples": [
                        1700000000
                      ],
                      "minimum": 0,
                      "type": "integer"
                    },
                    "transaction_count": {
                      "examples": [
                        1
                      ],
                      "minimum": 0,
                      "type": "integer"
                    },
                    "transactions": {
                      "examples": [
                        [
                          "0xabababababababababababababababababababababababababababababababab"
                        ]
                      ],
                      "items": {
                        "type": "string"
                      },
                      "maxItems": 100,
                      "type": "array"
                    },
                    "truncated": {
                      "examples": [
                        false
                      ],
                      "type": "boolean"
                    },
                    "warnings": {
                      "default": [],
                      "examples": [
                        []
                      ],
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "ok",
                    "receipt_id",
                    "billed",
                    "block",
                    "network",
                    "block_number",
                    "block_hash",
                    "parent_hash",
                    "timestamp",
                    "miner",
                    "gas_used",
                    "gas_limit",
                    "base_fee_wei",
                    "transaction_count",
                    "transactions",
                    "truncated"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-17T09:30:33.945Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-17T09:30:33.329Z"
    },
    "resource": "https://agentshelf.syntexa.ch/v1/eth-block",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Call when an agent needs an Ethereum mainnet block header and transaction hashes by number or tag latest, finalized, or safe. The hash list is capped at 100. Read-only eth_getBlockByNumber on eip155:1. No spend. Send JSON {\"block\":\"latest\"}. Exact $0.001 USDC on Base. Try unpaid POST /v1/sandbox/eth-block first."
}

What the leaf hashes

{"body":"fb76d860e67eae86279b8b3642e307208b81c9f55eab337932d98d72cf36b300","id":63955,"kind":"listing","method":"baseline/1","observed_us":1793025455863541,"prev":null,"subject":"x402_bazaar:https://agentshelf.syntexa.ch/v1/eth-block","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. 0xa93361024c0114ae685d3d75807bcb8d02bdab0cbd515e4066fe7815f60ab1e4
  2. 0xf796625faffc6f2a0f25342cf4241c1f357ef48a76f1503f1f97f498f970128a
  3. 0x3049ca9c47349336f3227cec3fbb74d072c1232fc57206958eb0c7501c0fc685
  4. 0x8e7eea9a60976f446d3513c4a5e7664e0cc6086e9c2f090145ef1d74c625d82c
  5. 0x07c11c6d6a88fdb78cd9ddd9a233f4c57ae751261e08d6073b8b14c2efdc77c7
  6. 0xbd2c296b673ced4e3a53fa09d3760885bf0e431b3fcaf60013f978b5c6fff2d6
  7. 0x55ee77a7b3dc57e44f7ba63373aaa68a59c70c6ef315b75d5475710601573622
  8. 0x86fc791b80ba7686245c9016bdd1af2f10ec09aae2bddd106630a99a1f22d55c
  9. 0x935f0af9a0de38ab25c6b335de193a1c9f5e03436ba3673694e003e19f536b5e
  10. 0x63b9c21259d86b76d390f144e062a83ac21503bb37e0976ee607f9d0a805ccae
  11. 0xcc46e37d035d0d90e3d86104e55f155ffacd1530f11ceef85fa02db50beb78a5
  12. 0xb31654882cc5704ae07fa6a4ad12ef5516ea95a5ec8b5affdbdbec199402e29a
  13. 0x292ebdce6b8d3d7ef08ad646a0fd97dee9313ab55c1a350807d9f3013794c37a
  14. 0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
  15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
  16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
  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