Evidence row 117732

Observed 26 Oct 2026, 14:40 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://opendata402.com/v1/wikidata
Recorded: 26 Oct 2026, 14:40 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 24840df916b7379d65c45444bc3624ef94b0be6a208e685289c7dfcda3379caa
Leaf: 0xd435b76aab1cd04e10987248c68bb8ba4d201e31b07c3e9d18b9a50cccab7ec8

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://opendata402.com/v1/wikidata"
    ]
  ],
  "name": "opendata402",
  "owner_address": "0x295aa6c5a3460a0f8755823c8ee7bbc7caf79fb1",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 30,
        "network": "eip155:8453",
        "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 30,
        "network": "eip155:137",
        "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 30,
        "network": "eip155:42161",
        "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1",
        "scheme": "exact"
      }
    ],
    "description": "Key facts about any thing, place, person or company from Wikidata, by name or Q-id: label, description, Wikidata id and the most useful properties (type, country, location, population, coordinates, inception, birth/death dates, occupation, website, headquarters, industry, revenue, employees, ticker). Use it for entity lookup, enrichment and disambiguation. CC0.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "q": "Rijksmuseum"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "description": "national museum of the Netherlands in Amsterdam",
              "facts": {
                "country": [
                  "Netherlands"
                ],
                "inception": "1798-11-19",
                "instance_of": [
                  "art museum"
                ]
              },
              "id": "Q190804",
              "label": "Rijksmuseum"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "lang": {
                      "description": "Label language (default en).",
                      "pattern": "^[a-z]{2,3}$",
                      "type": "string"
                    },
                    "q": {
                      "description": "Name or Q-id (e.g. Q190804).",
                      "maxLength": 120,
                      "minLength": 2,
                      "type": "string"
                    }
                  },
                  "required": [
                    "q"
                  ],
                  "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"
        }
      }
    },
    "lastUpdated": "2026-10-14T22:34:30.131Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-14T22:34:29.926Z"
    },
    "resource": "https://opendata402.com/v1/wikidata",
    "serviceName": "opendata402",
    "tags": [
      "wikidata",
      "knowledge-graph",
      "entities",
      "facts",
      "cc0"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Key facts about any thing, place, person or company from Wikidata, by name or Q-id: label, description, Wikidata id and the most useful properties (type, country, location, population, coordinates, inception, birth/death dates, occupation, website, headquarters, industry, revenue, employees, ticker). Use it for entity lookup, enrichment and disambiguation. CC0."
}

What the leaf hashes

{"body":"24840df916b7379d65c45444bc3624ef94b0be6a208e685289c7dfcda3379caa","id":117732,"kind":"listing","method":"baseline/1","observed_us":1793025611831150,"prev":null,"subject":"x402_bazaar:https://opendata402.com/v1/wikidata","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).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON