Evidence row 65252

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.blockchain.info/explorer-gateway-kt/x402/charts/avg-block-size"
    ]
  ],
  "name": "Blockchain.info API",
  "owner_address": "0x995ffef6c39234f0bbc95cf0e84fe1b6e6e2d8e0",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bda02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x995ffeF6c39234F0bBc95cf0E84FE1B6e6e2d8e0",
        "scheme": "exact"
      }
    ],
    "description": "Paid AI-agent access to Blockchain.com Explorer API",
    "extensions": {
      "bazaar": {
        "description": "Get average Bitcoin block size chart data (paid via x402)",
        "info": {
          "input": {
            "body": {
              "cors": false,
              "format": "json",
              "metadata": false,
              "rollingAverage": "8h",
              "sampled": true,
              "timespan": "1y"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "description": "The average block size in MB.",
              "name": "Average Block Size",
              "period": "day",
              "status": "ok",
              "unit": "MB",
              "values": [
                {
                  "x": 1704067200,
                  "y": 1.62
                },
                {
                  "x": 1704153600,
                  "y": 1.71
                }
              ]
            },
            "format": "application/json",
            "type": "json"
          }
        },
        "method": "POST",
        "schema": {
          "properties": {
            "input": {
              "properties": {
                "body": {
                  "properties": {
                    "cors": {
                      "default": false,
                      "description": "Enable CORS headers",
                      "type": "boolean"
                    },
                    "format": {
                      "default": "json",
                      "description": "Response format:\n- `json` — Returns structured JSON with metadata and values\n- `csv` — Returns raw CSV data with timestamp and value columns (no metadata)\n",
                      "enum": [
                        "json",
                        "csv"
                      ],
                      "type": "string"
                    },
                    "metadata": {
                      "default": false,
                      "description": "Include metadata in response",
                      "type": "boolean"
                    },
                    "rollingAverage": {
                      "default": "8h",
                      "description": "Rolling average window (e.g., \"8h\", \"24h\")",
                      "example": "8h",
                      "type": "string"
                    },
                    "sampled": {
                      "default": true,
                      "description": "Apply sampling to reduce data points",
                      "type": "boolean"
                    },
                    "timespan": {
                      "default": "1y",
                      "description": "Time period (e.g., \"24h\", \"7d\", \"1y\", \"3y\")",
                      "example": "1y",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "bodyType": {
                  "const": "json"
                },
                "method": {
                  "const": "POST"
                },
                "type": {
                  "const": "http"
                }
              },
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "description": {
                      "type": "string"
                    },
                    "name": {
                      "type": "string"
                    },
                    "period": {
                      "type": "string"
                    },
                    "status": {
                      "type": "string"
                    },
                    "unit": {
                      "type": "string"
                    },
                    "values": {
                      "items": {
                        "properties": {
                          "x": {
                            "format": "int64",
                            "type": "integer"
                          },
                          "y": {
                            "format": "double",
                            "type": "number"
                          }
                        },
                        "required": [
                          "x",
                          "y"
                        ],
                        "type": "object"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "status",
                    "name",
                    "unit",
                    "period",
                    "description",
                    "values"
                  ],
                  "type": "object"
                },
                "format": {
                  "const": "application/json"
                },
                "type": {
                  "const": "json"
                }
              },
              "type": "object"
            }
          }
        },
        "serviceName": "Explorer Gateway API",
        "tags": [
          "Charts"
        ]
      }
    },
    "lastUpdated": "2026-10-25T20:54:07.615Z",
    "quality": {
      "l30DaysTotalCalls": 11,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-25T20:54:07.419Z"
    },
    "resource": "https://api.blockchain.info/explorer-gateway-kt/x402/charts/avg-block-size",
    "serviceName": "Blockchain.info API",
    "tags": [
      "ai-agent"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Paid AI-agent access to Blockchain.com Explorer API"
}

What the leaf hashes

{"body":"09493bec344a1ae2bf30a7b1fa221b7c0f0366f52709f50855803f43c6e2bf2c","id":65252,"kind":"listing","method":"baseline/1","observed_us":1793025458078304,"prev":null,"subject":"x402_bazaar:https://api.blockchain.info/explorer-gateway-kt/x402/charts/avg-block-size","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. 0xefd8ed0f5e6b69890b3573e4ede9ae074ccb74c9c6b372e7f17702904122541e
2. 0x03c36d191c93b203b4e34a55083c2cfa3a5d421033f484555ca3e32fe8787f35
3. 0x0845664c7e7f89ece2ce7f55e079d154aaa3dc8777e187d18d34548733e0c45a
4. 0x37b3f0609c37af9da71c781eb1ec4665ec6d6c5c7f259b664b625fbe74f5a1da
5. 0x553b83eeda4b1b30ffc14da481d181e74c2fe13b2ee0179f10f9c70e1ba53182
6. 0x0bfcab2976c3117e07bf86ad0ace52124814198a34b62cc2b446d5b4cc8b8f47
7. 0x5ba03b3c974996d86acb9c2cc61ff20ad802154552587375d3003cb251163b73
8. 0x831e88b67a92940504bd4b499acc978c47ba7ec00e5a880e0af56baab36c03aa
9. 0xca9452281dd709133dcf94a94732c68bfa017fef5a05af7b259a2c7a598b66fa
10. 0xe8ce6526203eeff278621cde08607876fd3c33b3d5f8f0c68cd3d71fb0fdc142
11. 0xe34b4862878cc4926f0e4b84b3f031ef1f0cf0de9bf8fb3c13adbc6abc010ee1
12. 0xb0cc0b4ce5a68e83d3e3e55b0387f828adf6f5eb6cfa666d75f6e16ed9d89c1f
13. 0x746e9e5b6765727b6b96f41204cc115b0302259f6c67be0cf0efbf245601d500
14. 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae