Evidence row 1812391

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agent-vending-production.up.railway.app/v1/us-demographics"
    ]
  ],
  "name": "US Demographic Intelligence",
  "owner_address": "0x0b4242adf40726d9b09688030948176752d29924",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x0b4242adf40726d9b09688030948176752d29924",
        "scheme": "exact"
      }
    ],
    "description": "Query U.S. demographic, economic, education, labor, housing, and population statistics by geography. Returns normalized Census ACS estimates with margins of error, comparisons, trends, methodology, and source metadata as structured JSON. Not endorsed by the Census Bureau.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "geography": {
                "name": "California",
                "type": "state"
              },
              "metrics": [
                "total_population",
                "median_age",
                "median_household_income"
              ],
              "mode": "snapshot",
              "release": 2023
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "experiment": "LIMITED_PRODUCTION",
              "geography": {
                "display_name": "California",
                "fips": {
                  "state": "06"
                },
                "geo_type": "state"
              },
              "metrics": [
                {
                  "estimate": 39242785,
                  "metric_id": "total_population",
                  "moe": null,
                  "usable": true
                }
              ],
              "mode": "snapshot",
              "notice": "This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.",
              "ok": true,
              "price_usd": 0.01,
              "product_name": "US Demographic Intelligence"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": true,
                  "properties": {
                    "allow_overlapping": {
                      "type": "boolean"
                    },
                    "geographies": {
                      "description": "Exactly two geographies for compare mode.",
                      "items": {
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "geography": {
                      "description": "Target geography for snapshot/trend (type + name; state/county as needed).",
                      "type": "object"
                    },
                    "metrics": {
                      "description": "Friendly metric ids (e.g. total_population, poverty_rate).",
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "mode": {
                      "description": "Query mode.",
                      "enum": [
                        "snapshot",
                        "compare",
                        "trend",
                        "catalog"
                      ],
                      "type": "string"
                    },
                    "observations": {
                      "type": "integer"
                    },
                    "release": {
                      "description": "ACS5 release year (e.g. 2023).",
                      "type": "integer"
                    },
                    "years": {
                      "items": {
                        "type": "integer"
                      },
                      "type": "array"
                    }
                  },
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "comparisons": {
                      "items": {
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "experiment": {
                      "type": "string"
                    },
                    "geography": {
                      "type": "object"
                    },
                    "metrics": {
                      "items": {
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "mode": {
                      "type": "string"
                    },
                    "notice": {
                      "type": "string"
                    },
                    "ok": {
                      "type": "boolean"
                    },
                    "price_usd": {
                      "type": "number"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T18:21:08.253Z",
    "quality": {
      "lastCalledAt": "2026-11-01T18:21:08.253Z"
    },
    "resource": "https://agent-vending-production.up.railway.app/v1/us-demographics",
    "serviceName": "US Demographic Intelligence",
    "tags": [
      "US demographics",
      "demographic data",
      "Census data",
      "ACS data",
      "population data"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Query U.S. demographic, economic, education, labor, housing, and population statistics by geography. Returns normalized Census ACS estimates with margins of error, comparisons, trends, methodology, and source metadata as structured JSON. Not endorsed by the Census Bureau."
}

What the leaf hashes

{"body":"f15ab525d87f97349fdcfb2ccb643e5c5664d70f282196b07b8aea0291af3ce8","id":1812391,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793560321464046,"prev":null,"subject":"x402_bazaar:https://agent-vending-production.up.railway.app/v1/us-demographics","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0xa0b958d1a06859cce0b831434880b02c546ef81bf23277d373c2d520745c5da7
2. 0x6e3418562e7fbdd87b26715adec26122ece02ded31c167bf069468703c388d04
3. 0xcae5f167694ea0953ec656ca7fab374b5ccc046d56e660ca1e48e7bb019f75b3
4. 0xc3e7525d5a72a5cc241ea7b796b91f09b477234dcac6196ae31b866332b54190
5. 0x9227f8db11c640c0796912805685ce0d432b1345fd33d922473f3e2f772c5cc6
6. 0x5be7f05974ac3ff7860989de045227bb868cd70cb52418feb866656bb273de57
7. 0x67cdd6278ce05e72ee1aeb2f96a7151f2d7a8d920d23d7a864b4f2b1e6457298
8. 0x28715d4332406db1a912e9a2ffc5fa45b4f73e8995de0045f00e6c88decbd39e
9. 0x070984a928df71f11c7a87b58cad32f22bd14d78f429a2095d84d173c2fd9afa
10. 0x0ec05465d6f0c1e9664022a52ab69fc09d21dee3e6fd0c236d4873f7c2855dd6
11. 0x1b712d36de169128bfd6f9641d9b03646c89c2d5d8cd255208ec10c561c799d0
12. 0x4c8d70bbc71171c6f09376b1cd5cdb76fcc86cf6f4242fe3365e640972ba1ec2
13. 0x4d2f8da78dc8a660de1d8b86f0083d4295117c283b6de5334a6a9d06be22e64e
14. 0x699b83b189435f7ea2dc2d6d4f13262932214c0f9293f3ad20a20f7633995f1b
15. 0x4a900ec4cce00639b2e45adc5a7ba556793a171aadb927fa15d539147429570d
16. 0xc2b1c84ef3531511a3d8d9db5ff9eeca2725a3782e7f9c4ac87fc0f1588349fa
17. 0x0c618c42b286ad61acd8204aa6dcf024b8b041d3759aa585bf4e221abc39cb5d
18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90